[Solved] AutoGenerateColumns & ItemsSource Issue?

[Ross]

Hi,

I'm setting up a GridView (using your first look example as a starting point), but am binding to a static resource rather than via codebehind as follows:

<telerik:RadGridView x:Name="radGridViewFirstLook" Margin="5"
                                  ItemsSource="{Binding Path=SelectedFolder.Items, Mode=OneWay, Source={StaticResource AdminModelDS}}"
                                  ColumnsWidthMode="Fill" AutoGenerateColumns="False">
    <telerik:RadGridView.Columns>
        <telerikGridView:GridViewDataColumn IsReadOnly="False" HeaderText="Name" UniqueName="Name" />
    </telerik:RadGridView.Columns>
</telerik:RadGridView>

However, when running this, the AutoGenerateColumns="False" is being ignored and all columns are displayed.  To fix, I need to have the AutoGenerateColumns value set before the ItemsSource...  This doesn't seem correct behaviour and took quite a long time to realise this was an issue.

Can you confirm?

Thanks,
Ross

[Rosi]

Hello Ross,

Yes, you are absolutely right. The issue is caused by a bug in the way we initialize the internal data-related structures of the grid -- setting some properties too early would generate columns for example, and setting AutoGenerateColumns to false later would not affect the already generated columns.

However we will do our best to fix the issue for the official version of the control.

Meanwhile I suggest you set the ItemsSource property of RadGridView for Silverlight in the code-behind. If you use RadGridView for WPF you can also enable the IsAsync property to solve the problem:

telerik:RadGridView x:Name="radGridViewFirstLook" Margin="5"

ItemsSource="{Binding Path=SelectedFolder.Items,                                   Mode=OneWay, Source={StaticResource AdminModelDS},                                   IsAsync=True}"

ColumnsWidthMode="Fill" AutoGenerateColumns="False">

<telerik:RadGridView.Columns>

<telerikGridView:GridViewDataColumn IsReadOnly="False" HeaderText="Name" UniqueName="Name" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

Hope this helps.

Your points have been updated for your involvement.

Regards,
Rosi
the Telerik team

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