Is it possible to access the grid header programatically?

Question

I know it's possible to access a grid's column headers by:

this.FindControl("grid").ControlAvailable += (s, e) =>
         {
                (e.Control as System.Windows.Controls.DataGrid. ....
            };

Of course it's also possible to access the displayname of the grid: this.FindControl("grid").Displayname,

but I want to have access to the header control of the grid (not the columns) as indicated by following screenshot:

Is that possible? How?

thx

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paul van bladel

Answer 1

I'm sorry, I should have posted this question in the general forum not the extensibility forum. I presume the moderator can move the question. 

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paul van bladel

Answer 2

Hello Paul,

Yes, it is possible, see post Grid - No Header?, there is a code sample how do set the grid header to invisible.

All elements are somewhere in the VisualTree, the only difficult point is to find them.

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Olaf Helper
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Answer 3

Hi Olaf,

Thanks for that.

I presume you use XamlSply to figure out things like this?

With some additional patching on the dataGrid itself, you can get things like (with the shadow):

this.FindControl("grid").ControlAvailable += (s, e) =>
         {
             Control baseControl = e.Control as Control;
             Border border = baseControl.Parent as Border;
             Grid parentGrid = border.Parent as Grid;
             Grid grandParentGrid = parentGrid.Parent as Grid;
             grandParentGrid.Children[0].Visibility = System.Windows.Visibility.Collapsed; //header
             grandParentGrid.Children[1].Visibility = System.Windows.Visibility.Collapsed; //command and search bar

             DataGrid dataGrid = baseControl as DataGrid;
             dataGrid.GridLinesVisibility = System.Windows.Controls.DataGridGridLinesVisibility.None;
             dataGrid.HeadersVisibility = System.Windows.Controls.DataGridHeadersVisibility.None;
             dataGrid.Effect = new System.Windows.Media.Effects.DropShadowEffect();

         };

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paul van bladel