Dear Support
I use Grid as in the example Customer Column - Advance 2. it is work fine. but when I try to use the same grid but I put the grid inside the Tab Strip & multiPages it gives error. it is the same as the grid I used before all same. I remove the Tab Strip it work fine. the error is as the following:-

Object referance not set to an instance of an object.

I use the same code in the example Customer Column - Advance 2. exactly same.

Wael Al Baz

Server Error in '/account' Application.

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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.

Source Error:

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.

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
EO.Web.Internal.c8.a(h6[] A_0) +679
EO.Web.Internal.c8.a(h6 A_0) +676
EO.Web.Internal.bu.q() +272
EO.Web.WebControlBase.a(Object A_0) +99
EO.Web.Grid.a(Object A_0) +28
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +186
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
System.Web.UI.Page.LoadAllState() +439
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1092

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Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433

Thank you for your reply.

I found something. When I try to prepare a standalone of my page to send as your require, I remove the master page because I use it. When I test it, it works fine. Although there are other pages grid working fine and have a master page also but not inside the tab strip.

So I think the problem when use master page and put the grid inside the tab strip.

how can I send attach files?. I need to send the pages.

thanks a lot. it is works fine.
thnaks again for your great help.

Wailalbaz