.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

How to write a module or handler or a filter for CDN?

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :ASP.Net


I am in the middle of learning ASP.NET and now I am at the point where I would like to write a small module to change the url's of images, css and javascripts.

What I would like to do is every url that is rendered as, http://www.site.com/images, I would like to change it to http://images.site.com

Also I was wondering about what to do with the urls that are in CSS where it's mentioned as "../images/background.png" to something like http://images.site.com/background.png ?

Is this possible? If so then how do I proceed and where do I start from?

I am using IIS7. ASP.NET with .Net Framework 4. Not using MVC.

Any help or nudge in a write direction with some sample code would be appreciated.

TA :)

View Complete Post

More Related Resource Links

IIS 7 error Handler "svc-ISAPI-4.0_32bit" has a bad module "IsapiModule" in its module list

Hi experts, I'm trying to  host my WCF(3.5) on IIS7  and I get the below error.  HTTP Error 500.21 - Internal Server Error Handler "svc-ISAPI-4.0_32bit" has a bad module "IsapiModule" in its module list   I tried reinstalling >net 4(Some forum mentioned to do that) and also aspnet_regiis.exe -i in VS 2010 command prompt. Thanks in advance, KP Nothing helped.

Async WCF handler/module not calling IDisposable.Dispose() on IAsyncResult?


From some of the posts I've seen regarding implementing an IAsyncResult it seems as if many implement IDisposable.  I'm playing around with async WCF on the server (hosted under IIS6 at the moment) and it doesn't appear WCF is calling my IAsyncResult's IDisposable.Dispose() method after calling the EndXXX() method.  Is it supposed to?

By the way I'm running against .NET 3.5 SP1.



we write the referd extention to the handler in the address bar , an Error 404 appears.


we have made a httphandler and then compiled it and have added its refrence to my project in VS.NET

When we start VS.NET the referd extention  to then above handler works currectly but at the time that we run the same project in IIS 6 (without running VS.NET)

and we write the referd extention to the handler in the address bar , an Error 404 appears.

Exp. http://mywebsite/default.tttttttt

if .tttttttt is the referd extention.

Using jQuery to Filter Table Rows

The project is using the .net GridView control, so I had limited control over the output HTML code. Still, I think this code can work for most tables. One thing to notice: you should use the class "filterable" on your table or on one of its parents for the code to work.
First, we need a text box:

GridView Multiple Filter AJAX Control

This AJAX control enables the user to filter data within any column inside a GridView. The user can add multiple filters and can delete existing ones too.

Write Custom WebParts for SharePoint 2007

The popularity of SharePoint Portal Server 2003 led Microsoft to tightly integrate the next SharePoint version, Microsoft Office SharePoint Server (MOSS) 2007, with its ASP.NET 2.0 WebPart framework. This tight integration enables the ASP.NET and SharePoint developer to do a number of things that previously weren't possible

Serial Port Communication Read and Write using C#.net

In this simple article you will learn that how you can Open and read COM port data using System.IO.Ports Namespace.
Simply just create New Project of windows application in C#.

Import ServiceProcess APIs
using System.IO.Ports

Imports System.IO.Ports

Write Parsing functions which parse port data according to attached device

Where to Filter the companies returned by the EF?



I am just starting with dynamic data. I have an enttity framework called UsersModel.edmx.

It returns a list of all companies in the tblCompany table. This list is really big.

I need to filter the list returned to all user controls on the client so that it only returns the company that have a CompanyTypeId= 2 or CompanyTypeId= 3 and company name != "".

1 - Is it possible to filter the company list returned on the server so that I can filter only once for all the controls that use that on the client?

My ideas was to do something like this using linq and lambda but I am not sure how:

return tblCompanys.Where(c => c.CompanyTypeId == 2 || c.CompanyTypeId == 3 && ).Where(c=>c.CompanyName != "").OrderBy(c => c.CompanyName).Distinct().OrderBy(c=>c.CompanyName);

2 - I have created a partial class and a metadata class and added the DisplayColumn attribute to use the company name and sort by company name ascending.

Could I use the code to filter the returned companies in this? where?

namespace MarsMedicalModel
    [DisplayColumn("CompanyName", "CompanyName")]
    public partial class t

Filter by Computed Column



After looking for a driver to open legacy dbf drivers to connect, the next level trouble a have is this one:

first, i can retrieve the data but when trying to filter by a parameter (somesc columns) i get an error.

The error says about the database can't determine some blah blah!

The error is a columm tha is formated (  1234  ) about  8 space, fixed. The values in the query appears like that. I resolve this by Trimming Ltrim(ColumnName) and i get this (1234).

Now in SqlExpress, how can i filter by the new Trimmed Expression? (This is a primary key that the DBF use)


SELECT column1, column2, column3


SELECT Ltrim(column1) as NewExp, column2, column3
Where NewExpre = @NewExpres                  -Error-


How to write SQL Datasource programatically in VB


Can someone pls help me to rewrite this programatically!


<asp:SqlDataSource ID="DS" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
                SelectCommand="SELECT * FROM [Products] WHERE ([ProductID] = @QSID)">
                    <asp:QueryStringParameter DefaultValue="" Name="QSID" QueryStringField="ID"
                        Type="Int32" />


Thank You in advance!


How to write xml file?


I am having a three text box. I want to write the fields given in text boxes to xml file and the xml file should be open as save dialog box for the user to download the xml file. I want without saving the xml file in the physical path of the server 
Any idea let me know?


I am having a three text box. I want to write the fields given in text boxes to xml file and the xml file should be open as save dialog box for the user to

How to write in .dbf file with c#


Hi all

can anybody help me to solve my problem : writing in .dbf  , as following is my code with this error :

[ ERROR [07002] [Microsoft][ODBC dBase Driver] Too few parameters. Expected 3 ]


SqlConnection cn = new SqlConnection("Data Source=(local);Initial Catalog=test;Integrated Security=True");
        SqlDataAdapter da = new SqlDataAdapter("select * from test", cn);
        DataSet ds = new DataSet();
        da.Fill(ds, "test");
        string odbccon = "Dsn=TEST.DBF;dbq=E:\\FOX;defaultdir=E:\\FOX;driverid=533;fil=dBase 5.0;maxbuffersize=2048;pagetimeout=5";

        OdbcConnection connection = new OdbcConnection(odbccon);
        OdbcCommand createCommand = connection.CreateCommand();

        createCommand.CommandText = "CREATE TABLE test (ID int, name varchar(50),last_name varchar(50))";

IIS request filtering module


Hi folks,

I have migrated my web application to iis 7.5 Now I am using windows 7 as dev machine.

the problem is it takes several seconds to download a single page into web browser now. It contains only 300 records.

Everything is ok on prod website though. Prod version contains up to 200000 records .I can't also use code profile tool of red gate to analyze possible bottlenecks since the software in question can't restart IIS. No errors in IIS logs. I am using ISAPI Rewrite 3 filter by Helicon to apply some URL rewriting rules. I am thinking about conflict between ISAPI rewriting rules and default IIS 7.5 request filtering rules, since the IIS request filtering module gets a higher priority than even the built-in IIS 7.5 rewriter module. Is it possible to tweak the module through web.config so that priority is given to ISAPI rewriting rules or something like that?

Frankly, I spent several days to figure out solution. No success...

I've also deployed the application on IIS 5.1. Everything works fine. Any ideas about possible solution for IIS 7.5?

LDAP nested groups filter


Hi all,

In my organization we use nested groups.

For a particular usage, we have a group (let's assume that the group name "kuku"), and the names of all the nested groups under it contains "kuku" as well.

We may assume that no other group in the LDAP has "kuku" in the name.

I need to create a filter which will return all the users which belong to one of the "kuku"s group.

Obviously, using this filter will bring only the head kukus

(&(&(objectclass=user)(objectclass=person))(memberOf=CN=kuku,cn=.rest of the group DN.))

How can I use wild card to fetch all users which belong to any kuku?

For example: (&(&(objectclass=user)(objectclass=person))(memberOf=CN=.*kuku.*))



Willing to Write Urdu in my text box


 hi want to write urdu in text box of my application if anyone has the solution how to do this kindly let me know

Crystal Report gives System.AccessViolationException: Attempted to read or write protected memory. T


when a crystal report for same id is opened again at same time or refreshed then it gives the

"System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt."

Stack Trace is :-

Stack Trace:

[AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.]
CrystalDecisions.ReportAppServer.Controllers.DatabaseControllerClass.SetConnectionInfos(ConnectionInfos ConnectionInfos) +0
CrystalDecisions.CrystalReports.Engine.Table.ApplyLogOnInfo(TableLogOnInfo logonInfo) +362
CrystalDecisions.CrystalReports.Engine.ReportDocument.SetTableLogon(Tables tables, String user, String password, String server, String database, Boolean ignoreCase) +258
CrystalDecisions.CrystalReports.Engine.ReportDocument.SetDatabaseLogon(String user, String password, String server, String database, Boolean ignoreCase) +204

Urgently Need Help : Unrecognized Tag Prefix or device filter 'CR'


I have download and installed the Crystal Report for 2010 from my Visual Studio 2010. 


Problem 1 :

When I create a new crystal report in the Project, the aspx created code below :

<CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server"
            AutoDataBind="True" GroupTreeImagesFolderUrl="" Height="1202px"
            ReportSourceID="MemberList" ToolbarImagesFolderUrl="" ToolPanelWidth="200px"
            Width="1104px" />
        <CR:CrystalReportSource ID="MemberList" runat="server">
            <report filename="MemberList.rpt">

 but there is error : unrecognized tag prefix or device filter 'CR'


Problem 2 :

The vb code of the crystal report that I had created has 'ComponentModel is not a member of 'MYPROJECT.system'



ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend