European ASP.NET 4.5 Hosting BLOG

BLOG about ASP.NET 4, ASP.NET 4.5 Hosting and Its Technology - Dedicated to European Windows Hosting Customer

HostForLIFE.eu offers €1.29/month Affordable and High Performance Windows & ASP.NET Shared Hosting Plan

clock May 20, 2014 11:50 by author Peter

European Windows and ASP.NET hosting specialist, HostForLIFE.eu, has officially launched the new Windows & ASP.NET Shared Hosting Plan offered from as low as €1.29/month only. This LITE Windows & ASP.NET Hosting packages combine generous or 1 website, 1 GB disk space, 10 GB bandwidth, Support UTF-8 Domains, Dedicated Pool, etc. As the market for hosted solutions continues to grow, the new hosting range is designed to exceed the growing technical demands of businesses and IT professionals.

HostForLIFE.eu  is confident that their new LITE shared hosting plans will surely appeal to the personal across the world, besides the website owners and companies owning websites. The new web hosting plans will meet the requirement of high performance web hosting where one can easily update the content of a website on a regular basis. This plan is designed more for the web hobbiest needing affordable, high availability, hosting and easy backend management of windows and ASP.NET with powerful Plesk control panel.

Every day thousands of people decide to set up a website for business or personal use. New business owners and the average consumer don’t always have access to unlimited budgets. HostForLIFE.eu understand the importance of reliable hosting but are not always prepared to pay the exorbitant prices that reliable hosts charge.

For additional information about LITE Shared Hosting Plan offered by HostForLIFE.eu, please visit http://hostforlife.eu

About HostForLIFE.eu:

HostForLIFE.eu is European Windows Hosting Provider which focuses on Windows Platform only. HostForLIFE.eu  deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes.

HostForLIFE.eu is awarded Top No#1 SPOTLIGHT Recommended Hosting Partner by Microsoft (see www.microsoft.com/web/hosting/HostingProvider/Details/953). Their service is ranked the highest top #1 spot in several European countries, such as: Germany, Italy, Netherlands, France, Belgium, United Kingdom, Sweden, Finland, Switzerland and other European countries. Besides this award, They have also won several awards from reputable organizations in the hosting industry and the detail can be found on their official website.



European FREE Cloud ASP.NET 4.5.2 Hosting - Italy :: ASP.NET 4.5.2 Hosting is Available in HostForLIFE.eu

clock May 16, 2014 07:29 by author Scott

Wow…. Welcome new ASP.NET 4.5.2… We are happy to hear that Microsoft has launched this new ASP.NET 4.5.2 feature.

The Microsoft .NET Framework 4.5.2 is a highly compatible, in-place update to the Microsoft .NET Framework 4, Microsoft .NET Framework 4.5 and Microsoft .NET Framework 4.5.1.

The .NET Framework 4.5.2 contains a variety of new features, such as:

  • ASP.NET improvements
  • High DPI Improvements
  • Distributed transactions enhancement
  • More robust profiling
  • Improved activity tracing support in runtime and framework

The new version of the .NET Framework can be installed on the following operation systems:

  • Windows 7 Service Pack 1
  • Windows 8
  • Windows 8.1
  • Windows Vista Service Pack 2
  • Windows Server 2008 R2 SP1
  • Windows Server 2008 Service Pack 2
  • Windows Server 2012
  • Windows Server 2012 R2

What good news is we also have supported this ASP.NET 4.5.2 hosting in our hosting environment. This ASP.NET 4.5.2 hosting is dedicated for our new European and existing customers. For more information, please check our official site about ASP.NET 4.5.2 hosting



Free ASP.NET 4.5 Cloud Hosting Spain - HostForLIFE.eu :: Count Number of Nodes in XML File in ASP.NET 4.5

clock May 6, 2014 06:00 by author Peter

Here I will explain how to count number of records in xml file in C# using ASP.NET 4.5 Cloud Hosting Spain or how to count number of nodes in xml file in asp.net using C# and VB.NET or count number of elements in xml file in C#.

In previous articles I explained insert xml data to sql table using stored procedure, Bind xml data to dropdown/gridview in asp.net, create online poll system with percentage graphs in asp.net and many articles relating to xml, Gridview, SQL, jQuery,asp.net, C#,VB.NET. Now I will explain how to count number of records in xml file in C# using ASP.NET.

To count number of nodes from xml file we need to write the code like as shown below

XmlDocument readDoc = new XmlDocument();
readDoc.Load(MapPath("Sample.xml"));
int count = readDoc.SelectNodes("CommentsInformation/Comments").Count;
lblcount.InnerHtml = "Number of Records: "+ count;

If you want to see it in complete example we need to write the code like as shown below
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td style="width: 100px">
Name:</td>
<td style="width: 100px">
<asp:TextBox ID="txtName" runat="server"></asp:TextBox></td>
</tr>
<tr>
<td style="width: 100px">
Email:</td>
<td style="width: 100px">
<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox></td>
</tr>
<tr><td></td>
<td>
<asp:Button ID="btnSubmit" runat="server" OnClick="btnSubmit_Click" Text="Submit" /></td>
</tr>
</table>
<br />
<label id="lblcount" runat="server" />
</div>
</form>
</body>
</html>

After that add XML file to your application and give name as "Sample.xml" then add root element in xml file otherwise it will through error. Here I added CommentInformation as root element in XML file.
<?xml version="1.0" encoding="utf-8"?>
<CommentsInformation>
 </CommentsInformation>

After that add this namespace in codebehind

C# Code
using System;
using System.Xml;

After that add below code in code behind

protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(Server.MapPath("Sample.xml"));
XmlElement parentelement = xmldoc.CreateElement("Comments");
XmlElement name = xmldoc.CreateElement("Name");
name.InnerText = txtName.Text;
XmlElement email = xmldoc.CreateElement("Email");
email.InnerText = txtEmail.Text;

parentelement.AppendChild(name);parentelement.AppendChild(email);
xmldoc.DocumentElement.AppendChild(parentelement);
xmldoc.Save(Server.MapPath("Sample.xml"));
XmlDocument readDoc = new XmlDocument();
readDoc.Load(MapPath("Sample.xml"));
int count = readDoc.SelectNodes("CommentsInformation/Comments").Count;
lblcount.InnerHtml = "Number of Records: "+ count;
}

VB.NET Code
Imports System.Xml
Partial Class vbcode
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim xmldoc As New XmlDocument()
xmldoc.Load(Server.MapPath("Sample.xml"))
Dim parentelement As XmlElement = xmldoc.CreateElement("Comments")
Dim name As XmlElement = xmldoc.CreateElement("Name")
name.InnerText = txtName.Text
Dim email As XmlElement = xmldoc.CreateElement("Email")
email.InnerText = txtEmail.Text
parentelement.AppendChild(name)
parentelement.AppendChild(email)
xmldoc.DocumentElement.AppendChild(parentelement)
xmldoc.Save(Server.MapPath("Sample.xml"))
Dim readDoc As New XmlDocument()
readDoc.Load(MapPath("Sample.xml"))
Dim count As Integer = readDoc.SelectNodes("CommentsInformation/Comments").Count
lblcount.InnerHtml = "Number of Records: " & count
End Sub
End Class



Free ASP.NET 4.5 Hosting Spain - HostForLIFE.eu :: ASP.NET Validation Controls.

clock April 29, 2014 09:01 by author Peter

Today I will discuss about the various validation control that ASP.NET Hosting provide and benefit of using it over client side validation. ASP.NET validation control provide two ways validation. i.e. both Server side and Client side. They perform client-side validation if after confirming that browser allows client side validation(i.e JavaScript is enabled), thereby reducing the overhead of round trip. If client side validation is disabled, it will perform the server side validation. All this from detection to validation is all taken care by the ASP.NET.

In total ASP.NET provide 5 + 1(ValidationSummary) validation control:

  1. RequiredFieldValidator 
  2. CompareValidator
  3. CustomValidator
  4. RangeValidator
  5. RegularExpressionValidator 
  6. ValidationSummary Control      

will discuss about all the control in detail, but before that i will elaborate the attributes that are common to all the controls. 

1. Display - This attribute is used to display the error message. It takes 3 options

  • None: This will ensure that no error message is displayed. Used when Validation summary is used.
  • Static: This will ensure that space on the  page is reserved even if validation pass. i.e. Real estate area on the page will be allocated.
  • Dynamic: This will ensure that space for error message is reserved only if validation fails.

In short static and dynamic do exactly the same thing. Difference between them is that in case of static Style for the <span> is

style="visibility: hidden; color: red;"

and in case of Dynamic Style for span is

style="display: none; color: red;"

2. ControlToValidate - This attribute is used to get the control on which validation is to applied
3. EnableClientScript - Boolean value to indicate whether client- side validation is enabled or not. Default value is true.
4. IsValid - Boolean value to indicate whether the control mention is ControlToValidate attribute is valid or not. Default value is true.
5. Enabled - Boolean valued to indicate if Validation control is enabled or not. Default value is true.
6. ErrorMessage - This is the text message that will be displayed in the validation summary.

RequiredFieldValidator Control
As the name suggest, this validation control make sure that control mention in ControlToValidate cannot be empty.
<asp:TextBox ID="txtSampleTextBox" runat="server">
</asp:TextBox>
<asp:RequiredFieldValidator ID="reqfldValidator" runat="server" ControlToValidate="txtSampleTextBox" 
Enabled="true" Display="Dynamic" ErrorMessage="Required" ToolTip="Required">
*</asp:RequiredFieldValidator>

CompareValidator Control
This Control is used to compare the value or one control to the value of another control or to a fixed value. One catch here is that validation pass if both the fields are empty. To handle that one require to apply Required field validator along with CompareValidator.
<asp:TextBox ID="TextBox1" runat="server" />
<asp:TextBox ID="txtTextBox2" runat="server" />
<asp:CompareValidator ID="CompareValidator1" runat="server" ControlToValidate="txtTextBox1" ControlToCompare="txtTextBox2" Display="Dynamic" ValidationGroup="MyGroup" ToolTip="No Match">*</asp:CompareValidator>

ControlToCompare - This take the Id of control with which comparison is being done.
Comparison can be made on following data types: Currency, Date, Double, Integer and String

RangeValidator
As the name suggest this control is used to make sure that data entered by the user fall within the specified range. Again as for Compare validator validation will pass if input control is empty. Use RequiredFieldValidator to fix this issue.
<asp:TextBox ID="TextBox1" runat="server" ValidationGroup="MyGroup" />
<asp:RangeValidator ID="RangeValidator1" runat="server" ControlToValidate="txtTextBox1" MaximumValue="800"
MinimumValue="5" ValidationGroup="MyGroup" Display="Dynamic" Type="String" ToolTip="Error">*</asp:RangeValidator>

A little explanation for this validator. It has a Type attribute that signifies the datatype for Range. In above example datatype is string with MinimumValue="5" and MaximumValue="100". The validation goes like it will accept all the value that satisfy the regex ^[5-8]+$. A little confusing but will get clear after 2 3 reading.

RegularExpressionValidator
This is one of my favorite validator control. This control provide maximum level of flexibility to the developer and almost all the validator control function can be achieved using this validator control. RegularExpressionValidator control has attribute ValidationExpression that is used to specify the regular expression that is used to validate the input control.

<asp:TextBox ID="TextBox1" runat="server" ValidationGroup="MyGroup" />
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"  

ControlToValidate="txtTextBox1"
ValidationGroup="MyGroup" Display="Dynamic" ValidationExpression="^[5-8]+$" ToolTip="Error">*</asp:RegularExpressionValidator>

CustomValidator Control: Custom validator control is used to capture the validation that cannot be handled by the validator controls provided by ASP.NET. Here user is at the freedom to define his own custom method, both Client side and Server side. 
<asp:TextBox ID="TextBox1" runat="server" ValidationGroup="MyGroup" />
<asp:CustomValidator runat="server" ClientValidationFunction="YouClientValidationFunction" ControlToValidate="txtTextBox1" ID="cstmValidatorControl" OnServerValidate="ServerSideMethod" ValidateEmptyText="true" ToolTip="Error">*</asp:CustomValidator>

ValidateEmptyText  is a boolean attribute that if set to true, the input control will be validated even if it is empty.
ClientValidationFunction contains name of client validation function.
OnServerValidate contains name of server validation function.

ValidationSummary Control
This control is used to display the list of all the validation error that has occurred on the page. The error message displayed is the one set for the ErrorMessage attribute of the validation control. No error message will be displayed if this attribute is not set.  
<asp:TextBox ID="TextBox1" runat="server" ValidationGroup="MyGroup" />
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtTextBox1" ValidationGroup="MyGroup" Display="Dynamic" ValidationExpression="^[5-8]+$" ErrorMessage="Error" ToolTip="Error">*</asp:RegularExpressionValidator>

<asp:Button runat="server" ID="Button1" ValidationGroup="MyGroup" Text="Submit" />
<asp:ValidationSummary runat="server" ID="ValidationSummary1" ShowMessageBox="true" ValidationGroup="MyGroup" ShowSummary="true" DisplayMode="BulletList" />

DisplayMode has three options List, BulletList and SingleParagraph
ShowMessageBox when set to true will display the error as a alert popup
ShowSummary will display the error on the page. By default it is true.



Free Italy ASP.NET 4.5 Hosting - HostForLIFE.eu :: Programmatically Clearing The ASP.NET Cache For Web Forms and MVC Pages

clock April 16, 2014 06:01 by author Peter

Page level caching for ASP.NET 4.5 web forms and MVC websites is pretty awesome, because it allows you to implement something that's quite complex; multilevel caching, without having to really understand too much about caching, or even write much code. But what if you want to clear a cached ASP.net page before it's due to expire.

What page caching aims to achieve

When developers turn to caching pages in their ASP.net websites, usually it's because of one thing; the need for speed. When our code bases start to require continual requests to a data store, be it disk or database, that doesn't change too much overtime, caching is usually the first hammer we turn to to minimise fetching from slower stores. ASP.NET Web Forms and ASP.Net MVC both make this a pretty trivial thing to do by hiding the complexity of cache providers behind simple attributes to either your .aspx pages or controller actions:

WebForms page output caching example:

<%@ OutputCache Duration="300" VaryByParam="productId" %>
ASP.net MVC controller caching:
[OutputCache(Duration = 300, VaryByParam = "prodId")]
public ActionResult ProductDetails(string prodId)
{

}
}

The above is awesome because it's simplicity, but you'll notice one key thing here: I've set my cache expiry to 300 seconds. This is primarily because I want the content to pull from the source now and then just in case something has changed. I've used 300 seconds, but really the time may be inconsequential – I've just set it to an arbitrary number that I deemed would meet my needs.

This doesn't really use the cache as well as it could be used in many scenarios, the primary one being during a period where my site isn't being updated, and the content only changes once every few days/weeks/months. The .NET tooling attempts to allow for these situations by having support for providers like the SQLCacheDependency you can add to your application. But the SQL cache provider or even a CustomCacheProvider don't give you the fine grain control you really want: being able to programmatically remove page, control, action or child-action level cached pages. Like most great things: simple and elegant ASP.net does support this out of the box – you just don't hear about it much. You can tell the runtime to remove cached pages and controls simply by using a very simple recursive API that refers to it's relative URL.

// remove any webforms cached item with the wildcard default.aspx*
HttpResponse.RemoveOutputCacheItem("/default.aspx");
// just remove the webforms product page with the prodId=1234 param
HttpResponse.RemoveOutputCacheItem("/product.aspx?prodId=1234");
// remove my MVC controller action's output
HttpResponse.RemoveOutputCacheItem(Url.Action("details", "product", new { id = 1234 }));

You'll notice for the MVC page's cache reference I used the Url.Action helper, and I recommend this, as it uses the same MVC routing as the cache provider – usually taking the first route found. Using the Url.Action helper means your provided Url follows the same path in reverse to that of the cache provider. For MVC child actions there is currently no way that I know of clearing individual control's caches. MVC controller child actions are stored in the ChildActionCache. To clear the entire child action cache you can do the following:

OutputCacheAttribute.ChildActionCache = new MemoryCache("NewRandomStringNameToClearTheCache");

Obviously this is a pretty aggressive approach, but if you would like to do this in a more granular fashion, try the open source project MVC Doughnut caching instead.



Europe FREE Windows ASP.NET Hosting - Spain :: HostForLIFE.eu Windows ASP.NET 4.5 Hosting Services

clock April 11, 2014 07:34 by author Scott

HostForLIFE.eu Windows and ASP.Net 4.5 hosting is a rare find. Even though the hosting industry is competitive and crowded, finding top-notch ASP.Net 4.5 hosting services is a challenge. Anyone who chooses Windows-based website development is well aware of that!

While researching this HostForLIFE.eu Windows and ASP.Net 4.5 hosting, HosForLIFE.eu is one of the best in the business, boasting the knowledge and expertise to cater to the specific needs and demands of Windows ASP.Net clients.

HostForLIFE.eu Windows and ASP.Net 4.5 hosting plans start with unlimited disk space and data transfer. Plesk control panel, 1 MySQL database and 1 MSSQL 2012 databases, Included within this list is the latest and greatest in .NET framework and ASP web hosting. Advanced email and development features sweeten the deal. Speaking of sweet deals: HostForLIFE.eu still offers a free domain name for life, a valuable bonus that is becoming increasingly rare among hosting providers. You’ll practically save money by signing up! These hosting plans definitely feature everything an ASP.Net developer needs to launch an exciting, reliable website.

Since opening in 2008, HostForLIFE.eu has gained a broad client base that includes individuals, enterprises, and businesses. With all of the above qualities – not to mention 24/7 support and proven reliability – it’s not hard to see why.

Price Value

Our HostForLIFE.eu Windows and ASP.Net hosting review picked out a few highlights: a 30-day money-back guarantee, 99.9% guaranteed uptime,  and automatic setup… and these are just the beginning.

With Windows Classic ASP hosting plans starting at just 5.00/month, Budget from €.5.50/month, Economy from €8.00/month and Business Plan from €11.00/month, we knew we had to look carefully at the feature list to be sure HostForLIFE.eu customers get everything they need. We’re pleased to report that HostForLIFE.eu comes out ahead on value, with a huge range of features and bonuses, including advanced email options. Dedicated IP addresses and other add-ons are well priced as well.

Reliability

Our HostForLIFE.eu Windows and ASP.Net hosting review turned up some crucial details beyond the industry-standard 99.9% uptime guarantee. The HostForLIFE.eu data centers (in Amsterdam) is protected by fully redundant power. Multiple tier-1 telecom providers and direct Internet connection ensure maximum speed and fast connections. The HostForLIFE.eu Network Operations Center employs 24/7/365 redundant monitoring to ensure instant response to any network problem. Nightly security updates and active firewalls keep hackers and malware out.

Control Panel

When you are a member of HostForLIFE.eu Classic ASP, you will enjoy the free use of Plesk Control panel, a highly stable and popular Windows control panel. This will allow you to manage virtually every site feature without the extra needed support of HostForLIFE.eu

Customer Support

HostForLIFE.eu offers 24/7 support time. The HostForLIFE.eu support portal has a searchable knowledgebase of help articles. In other words, the HostForLIFE.eu Windows and ASP .Net hosting experts will be there when you need them.

 



HostForLIFE.eu Proudly Announces Microsoft SQL Server 2014 Hosting

clock April 7, 2014 09:58 by author Peter
HostForLIFE.eu was established to cater to an under served market in the hosting industry; web hosting for customers who want excellent service. HostForLIFE.eu a worldwide provider of hosting has announced the latest release of Microsoft's widely-used SQL relational database management system SQL Server Server 2014. You can take advantage of the powerful SQL Server Server 2014 technology in all Windows Shared Hosting, Windows Reseller Hosting and Windows Cloud Hosting Packages! In addition, SQL Server 2014 Hosting provides customers to build mission-critical applications and Big Data solutions using high-performance, in-memory technology across OLTP, data warehousing, business intelligence and analytics workloads without having to buy expensive add-ons or high-end appliances. 

SQL Server 2014 accelerates reliable, mission critical applications with a new in-memory OLTP engine that can deliver on average 10x, and up to 30x transactional performance gains. For Data Warehousing, the new updatable in-memory column store can query 100x faster than legacy solutions. The first new option is Microsoft SQL Server 2014 Hosting, which is available to customers from today. With the public release just last week of Microsoft’s latest version of their premier database product, HostForLIFE has been quick to respond with updated their shared server configurations.For more information about this new product, please visit http://hostforlife.eu/European-SQL-Server-2014-Hosting

About Us:
HostForLIFE.eu is awarded Top No#1 SPOTLIGHT Recommended Hosting Partner by Microsoft (see http://www.microsoft.com/web/hosting/HostingProvider/Details/953). Our service is ranked the highest top #1 spot in several European countries, such as: Germany, Italy, Netherlands, France, Belgium, United Kingdom, Sweden, Finland, Switzerland and other European countries. Besides this award, we have also won several awards from reputable organizations in the hosting industry and the detail can be found on our official website.


European FREE ASP.NET 4.5 Hosting - Germany :: ASP.NET 4.5 Shared Web Hosting Trust Level

clock April 2, 2014 08:22 by author Scott

With more and more people and companies developing websites by Microsoft .NET technology, ASP.NET 4.5 shared web hosting comes to be the major solution provided by many web hosting companies. Most of people choose an ASP.NET 4.5 web host considering about .NET framework version, ASP.NET MVC support, SQL Server database, disk space or bandwidth but they usually ignore the most important feature “IIS security level”. That determines whether the ASP.NET 4.5 websites can run successfully on the shared web host. In result to, if you developing an ASP.NET 4.5 website that works well in the local development environment and attempt to run it in the ASP.NET 4.5 shared web host, you may get the following exception,

System.Security.SecurityException: That assembly does not allow partially trusted caller

This is caused by the security level of the ASP.NET 4.5 shared web host that your application is forced to run with the limited permission, by locking down the access to server file system, preventing the background threads, or interacting with COM interfaces, etc.

ASP.NET 4.5 Web Hosting Trust Levels

 

This security level is known as the Trust Level of IIS for ASP.NET 4.5 websites

It can be configured with the following setting:

  • Full Trust: website can do everything that the account of the application pool can do on the web server. This is the most flexible configuration for running websites on the shared web hosts. You won’t have any problems unless your website accesses the system information.
  • High Trust: websites are limited to call unmanaged code, e.g. Win32 APIs, COM interop.
  • Medium Trust: websites are limited to access the file system except the website application directory, system registry, Code DOM, and more (we will talk it later), compared to High Trust.
  • Low Trust & Minimal Trust: these two options restrict the websites seriously. Even they don’t allow websites to call the service out of process, such as database, network, etc. But we never saw an ASP.NET 4.5 shared web host configured with either one of these two options.

Full Trust and Medium Trust are two widely used levels in ASP.NET 4.5 shared web hosting. The full trust provides best flexibility but it has potential security issues to the shared server, especially when the web hosting provider doesn't have rich experience on setting up Windows permission and IIS. Compared to Full Trust, you have to review the website carefully before you go with a web host only supports Medium Trust Level. You can refer to the following checkpoints for the review,

  • The website shall not call unmanaged APIs.
  • The website shall not access to file system, system registry, event logs and anything else related to the system.
  • The website shall not generate code for execution dynamically using Code DOM.
  • The website shall not use XslTransform to transform something from XML using XSLT.
  • The website has to be signed with a Strong Name.

Check with the web page from Microsoft about which namespaces and classes are not supported in Medium Trust environment. 

And here is quick way to confirm the compatibility of websites to Medium Trust Level, in the local environment,

1. Add partially trusted callers attribute into AssemblyInfo.cs file of the website project, as following code snippet,

[assembly: AllowPartiallyTrustedCallers]

2. Add the following line into the web.config,

<trust level="Medium" />

Suggestion

It's a tradeoff between these two trust level. But if you confirm that the website can run successfully with Medium Trust in your local environment, we suggest you choose an ASP.NET 4.5 web host with Medium Trust only. It shall be more secure and reliable anyway. If you host the website based on 3rd party framework such as DotNetNuke, or using 3rd party component, we recommend you going with Full Trust web host.



FREE ASP.NET 4.5 Spain Hosting – HostForLIFE.eu :: GridView and Export to Excel

clock March 29, 2014 18:18 by author Peter

This is very simple to implement in ASP.NET 4.5 Hosting. But, there are possibilities to get problems in exporting to excel from grid view. When you bind data to gridview and write some logic to export to excel then it will not be enough. We have to check or write some additional logic which will help us to solve the problems. Below is the explanation for all problems we may get in the complete process along with detailed solution. You may encounter below errors when you try to implement the export to excel for gridview.

Control of type "GridView" must be placed inside of the form tag with runat="server"
This is very well known error to ASP.NET developers and by seeing it, we think that the control is not inside the form with runat server. But this is not correct. This error will come even if we put the GridView inside form with runat server. The reason is, in the export to excel logic we are calling RenderControl() method of GridView. So, to render it without any issues we have to override the "VerifyRenderingInServerForm" in our code.  Below is the syntax of the event. Add this to the c# code in code behind file. Remember this event is a Page event means this method you should place in ASPX page. If you are using user control to implement this export to excel logic then below are the ways to go.

1. If your user control is using by less than 3-4 pages then go to each and every page and add this event to the page.

2. If your user control is using by more than 5 pages then the best solution is to create a base page [Which inherits from System.Web.UI.Page class] and all your ASPX pages should inherit from this base page.public override void VerifyRenderingInServerForm(Control control)  

{  
    //Confirms that an HtmlForm control is rendered for the specified ASP.NET   
    //server control at run time. 
}  

Now, after we added the event to page, the error will go away for sure. Even when you add the above code/event to the page, this is not enough if you have the paging, sorting enabled on gridview. If you enable paging or sorting then you encounter the below error.

"RegisterForEventValidation can only be called during Render();"

This error is coming because we are doing paging and sorting. If no paging or sorting enabled this error will not come. To resolve this error, please follow below steps.

1. In your export to excel button click event, first disable the paging, sorting on gridview and do data bind.
2. Call export to excel logic.
3. Re-enable paging, sorting on gridview and databind.

Below is the logic we have to use in export to excel button click event.

gvReport.AllowPaging = false;  
    gvReport.AllowSorting = false;  
    gvReport.DataBind();  
    ExportToExcel();//Method to use export to excel.  
    gvReport.AllowPaging = true;  
    gvReport.AllowSorting = false;  
    gvReport.DataBind();   

Now, you are clear with all errors and the logic will export all data in gridview to excel.

FYI, I am placing a sample of ExportToExcel() functionality here.

private void ExportToExcel()  
    {  
        Response.Clear();  
        Response.AddHeader("content-disposition", string.Format("attachment;filename=excel_report.xls"));  
        Response.Charset = ""; 
        // Response.Cache.SetCacheability(HttpCacheability.NoCache);  
        Response.ContentType = "application/vnd.xls";  
        System.IO.StringWriter stringWrite = new System.IO.StringWriter();  
        System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);  
        gvReport.RenderControl(htmlWrite);  
        Response.Write(stringWrite.ToString());  
        Response.End();  
    } 

Note: gvReport is the gridview control name in my example. And there are lot of posts in internet guide you incorrect to resolve the above error. For example, they will say set EnableEventValidation="false" in the <%@ Page directive Or disable validation in web.config level to resolve the error. Please do not set it.



FREE ASP.NET 4.5 Hosting UK - HostForLIFE.eu :: How can HostForLIFE.eu Guarantee Our Windows ASP.NET 4.5 Hosting Service?

clock March 24, 2014 07:05 by author Scott

Only focusing on ASP.NET hosting service, HostForLIFE prove ourselves to be one of the best ASP.NET hosting providers that offer the most highlights, although there are thousands of ASP.NET hosting companies on the market. In below, we have listed our main features that has integrated with our 4 ASP.NET hosting plans.

Offering Many Excellent Features

- 1-Click Application Installer

In the HostForLIFE control panel, there is a 1-click web application installer for convenient installation of many popular open source web applications, including PHP apps like WordPress, Joomla, Drupal and phpBB, and ASP.NET applications like DotNetNuke, nopCommerce, BlogEngine and Orchard.

- PHP & MySQL

In the past, PHP didn't run well on a Windows server, but over the last several years, Microsoft has improved IIS and now PHP runs vey well on Windows hosting platforms, which means famous open source apps like Joomla, WordPress and Drupal can run well on HostForLIFE Windows hosting plans.

In addition, by supporting MySQL as part of their Windows hosting platform, a popular open source relational database system, HostForLIFE enables customers to use a lot of popular open source apps.

- ASP.NET 4.5.1 Hosting

We support ASP.NET 4.5.1 hosting on our Windows 2012 platform, which is compatible with Visual Studio 2013/2012, and our Windows 2008 hosting platform also fully supports ASP.NET 4.0 and is compatible with Visual Studio 2010, which enables customers' applications to be written in any language that is compatible with the common language runtime, including Visual Basic and C#.

- SQL Server

HostForLIFE always improve our technology and we always up to date with the Micorosoft technology. We offer the latest SQL 2012 version. We also support integrated full text search, stored procedures and ASP.NET SQL Session, which makes their customers get DBO right and manage SQL database remotely using SQL Management Studio or SQL Management Studio Express.

- Windows 2012 Hosting

We use Windows server 2012 – the latest Windows operating system comes with IIS8 to deliver customers with more options for their web applications including support for .NET, ASP and PHP. What's more, they support Full Trust to make customers' sites isolated from one another for greater reliability and security.

Utilizing Cutting-Edge Facilities & Infrastructures

HostForLIFE uses a state-of-the-art data enter which is featured with UPS backup power, diesel generators, firewall protection and 24×7 security. Moreover, we houses dual quad Dell servers that are 100% factory built and tested, coming with the best specification of 64 bit software, 32 GB of RAM, and RAID 10 disk arrays. All of the first-class facilities and infrastructures enable HostForLIFE to provide satisfying uptime and fast hosting speed for our customers to run websites smoothly and stably.

Providing Quality Technical Support

As one of the most reliable hosting companies, HostForLIFE offers quality technical support powered by a group of support staffs through email, all of who are professional, knowledgeable, experienced and on-site 24×7, so that we are able to give quick response and effective assistance to troubled customers to resolve problems.

In addition, in our online knowledgebase and blog, HostForLIFE technicians and engineers have worked out a lot of in-depth articles to teach customers how to deal with common issues independently.



About HostForLIFE

HostForLIFE is European Windows Hosting Provider which focuses on Windows Platform only. We deliver on-demand hosting solutions including Shared hosting, Reseller Hosting, Cloud Hosting, Dedicated Servers, and IT as a Service for companies of all sizes.

We have offered the latest Windows 2019 Hosting, ASP.NET 5 Hosting, ASP.NET MVC 6 Hosting and SQL 2019 Hosting.


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