Problems with custom cell template

[Mads]

I have trouble with creating a custom cell template for my custom filtering

I have the following xaml file
http://pastebin.com/12MYWM6J

And this codebehind
http://pastebin.com/c0JVMnQU

And this is my custom type
http://pastebin.com/LFnGynbz

My problem is that if I do not comment out 

<telerik:GridViewDataColumn>
    <telerik:GridViewDataColumn.CellTemplate>
        <DataTemplate>
            <CheckBox Checked="{Binding Path=Checked}" Content="{Binding Text}"/>
        </DataTemplate>
    </telerik:GridViewDataColumn.CellTemplate>
</telerik:GridViewDataColumn>

Then my application throws an exception
{"Unable to cast object of type 'System.Reflection.RuntimeEventInfo' to type 'System.Reflection.MethodInfo'."}

If I do comment it out then it runs fine, but it looks wrong, I dont want

<telerik:GridViewDataColumn
    DataMemberBinding="{Binding Path=Checked}"/>
<telerik:GridViewDataColumn
    IsReadOnly="True"
    DataMemberBinding="{Binding Path=Text}"/>

I want the checkboxes I create in my radgridview to align with the one in top

<CheckBox Content="{x:StaticExtension localization:SemenBucketTexts.SelectAll}" Click="SelectAll" />

[Mads]

Sorry for the double post, I got an error when I posted the first

[Mads]

I have found a solution to this

[Ivan Ivanov]

Hello,

I believe that you have tried to bind Checked (event), instead of IsChecked (property). I am glad that you have solution though. Feel free to write back to us if you need any additional help.

Regards,
Ivan Ivanov
Telerik