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Bug Report B131164
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Length cannot be less than zero parameter name: Length

created 16 years ago

when i try to drop a textedit control or memoedit on a windows form or dxform it throws
"Length cannot be less than zero parameter name: Length" error and fails to create the control on the form
Steps to Reproduce:
when i try to drop a textedit control or memoedit (timeedit,trackbarcontrol etc) on a windows form or dxform it throws
"Length cannot be less than zero parameter name: Length" error and fails to create the control on the form
Actual Results:
when i try to drop a textedit control or memoedit on a windows form or dxform it throws
"Length cannot be less than zero parameter name: Length" error and fails to create the control on the form
Expected Results:
create the control on the form

Show previous comments (3)
DevExpress Support Team 16 years ago

    Hi,
    Our developers need additional time to research this issue. We'll post an answer ASAP.
    Thank you

    DevExpress Support Team 16 years ago

      Hi,
      Thank you for your report. We've reproduced this problem.
      Thank you, Marina

      DevExpress Support Team 16 years ago

        Hi,
        Let me explain how the XAML Toys add-in works. You drop a control onto the Form, and assemblies are added to your project. The XAML Toys add-in parses the assembly name. Our design-time assemblies have short names, i.e. DevExpress.XtraEditors.v8.3.Design. However, the XAML Toys parses an assembly name as if it is a full name:

        Visual Basic
        Private Shared Function CurrentDomain_AssemblyResolve(ByVal sender As Object, ByVal args As ResolveEventArgs) As Assembly  

    Dim strFileName As String = String.Empty  

    If args.Name.Contains("\") Then  
        strFileName = args.Name  

    Else  
        strFileName = System.IO.Path.Combine(System.IO.Path.GetDirectoryName(Assembly.GetExecutingAssembly.Location), args.Name.Substring(0, args.Name.IndexOf(","c)) + ".dll")'<-------------Error!  
    End If  

    If System.IO.File.Exists(strFileName) Then  
        Return Assembly.LoadFrom(strFileName)  

    ElseIf Assembly.GetExecutingAssembly().FullName = args.Name Then  
        Return Assembly.GetExecutingAssembly  

    Else  
        Return Nothing  
    End If  

End Function

        Marked line is the cause of the exception. It's necessary to check whether the assembly name is full or short, for example:

        Visual Basic
        If args.Name.IndexOf(',') = -1 Then  
    strFileName = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly.Location), args.Name + ".dll");  
Else  
   strFileName = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly.Location), args.Name.Substring(0, args.Name.IndexOf(',')) + ".dll");  
End If

        Thank you, Marina

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