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error trying to edit control

2 posts, 0 answered
  1. Steven Lancaster
    Steven Lancaster avatar
    82 posts
    06 Nov 2009
    09 Jan 2010
    Link to this post

    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.  
    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.]  
       Telerik.Blogs.WebControls.Design.GuidBlogComparer.Compare(Guid bl_a, Guid bl_b) +108  
       System.Collections.Generic.ArraySortHelper`1.SwapIfGreaterWithItems(T[] keys, IComparer`1 comparer, Int32 a, Int32 b) +93  
       System.Collections.Generic.ArraySortHelper`1.QuickSort(T[] keys, Int32 left, Int32 right, IComparer`1 comparer) +64  
       System.Collections.Generic.GenericArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer) +90  
    [InvalidOperationException: Failed to compare two elements in the array.]  
       System.Collections.Generic.GenericArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer) +293  
       System.Array.Sort(T[] array, Int32 index, Int32 length, IComparer`1 comparer) +106  
       System.Collections.Generic.List`1.Sort(Int32 index, Int32 count, IComparer`1 comparer) +55  
       Telerik.Blogs.WebControls.Design.BlogPostsDesigner.SetBlogSelector() +185  
       Telerik.Blogs.WebControls.Design.BlogPostsDesigner.CreateChildControls() +171  
       System.Web.UI.Control.EnsureChildControls() +87  
       System.Web.UI.Control.PreRenderRecursiveInternal() +44  
       System.Web.UI.Control.PreRenderRecursiveInternal() +171  
       System.Web.UI.Control.PreRenderRecursiveInternal() +171  
       System.Web.UI.Control.PreRenderRecursiveInternal() +171  
       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:2.0.50727.3603; ASP.NET Version:2.0.50727.3082  
  2. Ivan Dimitrov
    Ivan Dimitrov avatar
    16072 posts
    12 Sep 2017
    10 Jan 2010
    Link to this post
    Hello Steven Lancaster,

    Is this the default BlogPosts control and its BlogPosts designer? Does the problem persists if you remove the control from the page and add it again? Can you provide steps to reproduce the problem locally, because this is not the default behavior of the control. You have changes something to the designer or some properties have been set inappropriately.

    Ivan Dimitrov
    the Telerik team

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2 posts, 0 answered