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Simple Combobox column - clearly I am missing the obvious...

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GridView

This is a migrated thread and some comments may be shown as answers.

Kenneth Jamieson asked on 27 Oct 2009, 11:15 AM

Hey all!

Now, clearly this is my problem and not one with the grid however I am just not seeing how I am going wrong. Given the following XAML...

    
                    <telerik:RadGridView Name="radGridView1" AutoGenerateColumns="False" UseAlternateRowStyle="True">  
        
                        <telerik:RadGridView.Columns> 
        
                            <telerik:GridViewComboBoxColumn UniqueName="Active" DataMemberBinding="{Binding IsActive}" SelectedValueMemberPath="Value" DisplayMemberPath="Title" /> 
        
                            <telerik:GridViewDataColumn UniqueName="User" DataMemberBinding="{Binding Name}" /> 
        
                        </telerik:RadGridView.Columns> 
        
                    </telerik:RadGridView>

And the following code to fill it...

    
                    public Window1()  
        
                    {  
        
                        InitializeComponent();  
        
                        var activeflaglist = new List<ActiveFlag>();  
        
                        activeflaglist.Add( new ActiveFlag{ Title = "Yes", Value = "Y" } );  
        
                        activeflaglist.Add( new ActiveFlag{ Title = "No", Value = "N" } );  
        
                        var userlist = new List<User>();  
        
                        userlist.Add( new User{ IsActive = "Y", Name = "Bob StartsActive" } );  
        
                        userlist.Add( new User{ IsActive = "N", Name = "Fred StartsInActive" } );  
        
                        userlist.Add( new User{ IsActive = "Y", Name = "John StartsActive" } );  
        
                        userlist.Add( new User{ IsActive = "Y", Name = "Alice StartsActive" } );  
        
                        userlist.Add( new User{ IsActive = "N", Name = "Janet StartsInActive" } );  
        
                        var activeColumn = (GridViewComboBoxColumn)radGridView1.Columns["Active"];  
        
                        activeColumn.ItemsSource = activeflaglist;  
        
                        radGridView1.ItemsSource = userlist;  
        
                    }

If you build the project (the link is below) and then try to use the combo box a crash is instant. What a I missing?

http://drop.io/hidden/wddviyal73bufj/asset/Y29tYm9ib3hlcnJvci16aXA%253D

Ken

7 Answers, 1 is accepted

Accepted