Object reference not set to an instance of an object
Hi, i have downloaded a ExtJs Extender Controls DLL from codeplex for 3.5 framework and i have already added it in my Visual Studio 2008 Control Toolbox. i try to make my first Ext Js page by adding a YuiGrid and attached a SqlDataSource in my default page, but when i press F5 (run the appz), it displays this error
please help me. thanks
Server Error in '/' Application.
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
[NullReferenceException: Object reference not set to an instance of an object.] ExtExtenders.Helpers.ClientScriptProxy.RegisterClientScriptResource(Control control, Type type, String resourceName) +303 ExtExtenders.Helpers.ExtScriptDataBoundControlBase.OnPreRender(EventArgs e) +353 ExtExtenders.YuiGrid.OnPreRender(EventArgs e) +71 System.Web.UI.Control.PreRenderRecursiveInternal() +80 System.Web.UI.Control.PreRenderRecursiveInternal() +171 System.Web.UI.Control.PreRenderRecursiveInternal() +171 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842
Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053
You should really post this question in the forum where you got this .NET control
Have you added it as a reference to the project and as an import at the top of your file that uses it?
In addition to being the wrong place for .Net support, it's also the wrong place for support of YUIGrid.