base class field is not compatible with type of control RSS

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  kuponutcom

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  base class field is not compatible with type of control

  Sep 13, 2003 07:50 AM|LINK

  Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: The base class includes the field 'dgPager', but its type (System.Web.UI.WebControls.DataGridPagerStyle) is not compatible with the type of control (ASP.DataGridPager_ascx). Line 92:
  Line 93:

  Line 94: Line 95: in the aspx.cs file

  
  protected System.Web.UI.WebControls.DataGrid DG;
  protected System.Web.UI.WebControls.DataGridPagerStyle dgPager;
  
  

  and in its respective .aspx: (where line 94 is erroring..)

  <%@ Page Language="c#" CodeBehind="PS2.aspx.cs" AutoEventWireup="false" Inherits="HybridCSVS.SPSearchResultsDataGrid" %>
  <%@ Register tagprefix="DataPagerDemo" Tagname="DataGridPager" Src="DataGridPager.ascx" %>
  

  ANY insight on the reason this error is occuring??
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  Ryan Milligan

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  Re: base class field is not compatible with type of control

  Sep 13, 2003 03:26 PM|LINK

  When you put a control in an ASPX file, a corresponding field whose name is the same as the control's ID is automatically created in the generated class. So the generated class has two fields with the same name and different types, which is illegal. You need to change the name either of the control, or of the DataGridPagerStyle. -- Ryan Milligan
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  dotnetpost

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  1 Post

  Re: base class field is not compatible with type of control

  Feb 20, 2008 02:08 AM|LINK

  I had similar issue.  The issue fixed by changing 'CodeFile' tag to 'CodeBehind' tag in the ascx file.  I guess this affects how .net compiles the app and hence was throwing error.

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  Will129

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  Re: base class field is not compatible with type of control

  Nov 05, 2008 04:05 PM|LINK

  I had the same message with a user control inheriting from a generic class.

  The base class includes the field 'uxContactDetailsView', but its type (ClassName`1[[Namespace.GenericType, AssemblyNamePrefix.AssemblyName, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]) is not compatible with the type of control (ASP.contactdetailsview_ascx)

   The "ClassName`1[[blahblahblah, blah, blah, blah]]" is how to declare the generic type in the Inherits attribute of the <%Control Language = "C#" ... > tag - apparently it doesn't understand the C# "ClassName<MyGenericType>" syntax, and needs to use the CLR syntax ("ClassName`1[[MyGenericType]]")

  Turns out the user control wasn't in a namespace (so it assumed I wanted to use "ASP" as the namespace?) - and giving this class file a namespace solved the problem.

   So the user control .ascx file now starts with <% Control Language = "C#" Inherits = "MyNamespace.MyType`1[[MyGenericNameSpace.MyGenericType, MyDll, Version=1.0.0.0., Culture=null, PublicKeyToken=null]]" CodeBehind = "MyCodeFile.ascx.cs" %>