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Filter Generation of designer file failed

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Kunal
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Kunal asked on 09 Jun 2010, 04:54 PM
We have a working filter column that extends GridTemplateColumn. 

  Everything is working properly at runtime, but at design time we get this message:
 Warning 1:
 Generation of designer file failed: Telerik.Web.UI.GridColumnCollection must have items of type 'Telerik.Web.UI.GridColumn'. 'custom:FilteringColumn' is of type 'TIPWebCommon.FilteringTemplateColumns.FilteringColumn'.

We are using Visual Studio 2008 with SQL Server 2005.

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Veli
Telerik team
answered on 16 Jun 2010, 08:06 AM
Hello Laura,

I cannot reproduce the issue you are describing. Implementing a custom column that inherits from Telerik.Web.UI.GridTemplateColumn seems to work OK with the RadGrid designer, provided that you properly reference both the Telerik.Web.UI assembly and your custom column in the .aspx page.

If the problem persists, consider opening a regular support ticket where you can send us some test project we can debug locally. This will help use better identify the cause for this issue and assist you further.

All the best,
Veli
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