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GridViewColumnGroup - Column groups disappear

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GridView
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Karl Farrand
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Karl Farrand asked on 02 Apr 2013, 08:44 PM
Hi,

I have just added some column groups into my RadGridView.
When I first open screen they are how they should be (see attached image)

However when I leave that screen and come back to it all but the first column group has gone.

Any ideas on why this might be

I am using v2013.1.220.1050
I am using MVVM with Caliburn so the screens are being activated \ deactivated using that framework when changing

The code is below:
 <telerik:RadGridView
      x:Name="radGridView1"
      Grid.Row="1"
      ItemsSource="{Binding EmployeeCollection}"
      SelectedItem="{Binding CurrentEmployee, Mode=TwoWay}" >
      <telerik:RadGridView.ColumnGroups>
        <telerik:GridViewColumnGroup  Name="EmployeeGroupedColumn" Header="Employee" />
        <telerik:GridViewColumnGroup  Name="FBTGroupedColumn" Header="FBT calculation settings" />
        <telerik:GridViewColumnGroup  Name="DateGroupedColumn" Header="Filter" />
      </telerik:RadGridView.ColumnGroups>
      <telerik:RadGridView.Columns>
        <telerik:GridViewDataColumn Header="Employee ID"
                  ColumnGroupName="EmployeeGroupedColumn"
                  UniqueName="EmployeeId"
                  DataMemberBinding="{Binding EmployeeId}" >
          <telerik:GridViewDataColumn.AggregateFunctions>
            <data:CountFunction Caption="Employees " />
          </telerik:GridViewDataColumn.AggregateFunctions>
        </telerik:GridViewDataColumn>

        <telerik:GridViewDataColumn Header="First name"
                  ColumnGroupName="EmployeeGroupedColumn"
                  UniqueName="FirstName"
                  DataMemberBinding="{Binding FirstName}" />

        <telerik:GridViewDataColumn Header="Surname"
                  ColumnGroupName="EmployeeGroupedColumn"
                  UniqueName="LastName"
                  DataMemberBinding="{Binding LastName}" />

        <telerik:GridViewDataColumn Header="Membership ID"
                      ColumnGroupName="EmployeeGroupedColumn"
                      UniqueName="MembershipNumber"
                      DataMemberBinding="{Binding MembershipNumber}" />

        <telerik:GridViewDataColumn Header="Cost centre"
                  ColumnGroupName="EmployeeGroupedColumn"
                  UniqueName="CostCentre"
                  DataMemberBinding="{Binding CostCentreName}" />

        <telerik:GridViewDataColumn Header="Shareholder"
                      UniqueName="AnnualDetail"
                      ColumnGroupName="FBTGroupedColumn"
                      DataMemberBinding="{Binding CurrentAnnualDetail.IsMajorShareholder}"
                      TextAlignment="Center"/>

        <telerik:GridViewDataColumn Header="Joined"
                  UniqueName="DateJoined"
                  ColumnGroupName="DateGroupedColumn"
                  DataMemberBinding="{Binding DateJoined, Converter={StaticResource DateFormatConverter}}"
                  TextAlignment="Center"/>

        <telerik:GridViewDataColumn Header="Departed"
                  UniqueName="DateLeft"
                  ColumnGroupName="DateGroupedColumn"
                  DataMemberBinding="{Binding DateLeft, Converter={StaticResource DateFormatConverter}}"
                  TextAlignment="Center"/>

      </telerik:RadGridView.Columns>
    </telerik:RadGridView>




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Dimitrina
Telerik team
answered on 03 Apr 2013, 11:23 AM
Hello,

May I ask you to test with the latest internal build and let me know about the result? 

Regards,
Didie
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Karl Farrand
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answered on 03 Apr 2013, 07:30 PM
Hi,

Thanks for the response.

I used internal build and that has resolved the issue.

Thanks
Karl
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Dimitrina
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Karl Farrand
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