Override connection string in TableAdapter with web.config
I found this tip is very useful for me in my day to day coding. Sometimes you create a table adapter in dataset in Data layer project, everything works fine but you will start wondering how…
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COMException (0x80040154): Retrieving the COM class factory for component with CLSID
I’ve got this error when i tried to deploy my service with .NET wrapper for VB6 component : System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} failed due to the following error:…
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Only one instance of script manager can be added to the page
I’ve got this error when i have ajax toolkit script manager on the master page while at the same time i’ve script manager on the content page. This is the primary cause of this error. The…
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App_GlobalResources maps to a directory outside this application, which is not supported
I got this error when i switched the default web server in visual studio to use IIS instead of visual studio integrated web server. To fix this error is by changing the IIS Default Web Site…
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407 Proxy authentication required
I found this problem when i try to do any of httpweb request behind proxy and i got error of “407 proxy authentication required”. Normally your company has its own proxy server and sometimes you want…
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Failed to enable constraints, one or more rows contain values violating non null, unique or foreign-key constraints
I found this error on my project. Well i spent around one hour to figure out this problem. People might think that this is some silly error message. The error message i got is “Failed to…
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Controlling PDF document through parameter
It’s a simple thing but might be essential. Sometimes you would like to have a link to your pdf document into a particular page. This is how you can do it. Add “page=” and the page…
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Register Javascript to hide Div
Sometimes people add javascript into the aspx page instead of using code behind but there is a case when we need to add javascript in the runtime using code behind. This is the example where javascript…