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c#wpfdatagridcontroltemplate

Compile Error: Window does not contain definition for template, even though template is defined. WPF C#

I'm trying to switch the template for a datagrid based on certain conditionals, but even though I define a template, the program does not compile, saying my window doesn't contain a definition for said template.

XAML

<ControlTemplate TargetType="DataGrid" x:Name="myGrid">
            <DataGrid>
                <DataGrid.Columns>
                    <DataGridTextColumn Header="ID" Binding="{Binding ID}"></DataGridTextColumn>
                    <DataGridTextColumn Header="Tag" Binding="{Binding Tag}"></DataGridTextColumn>
                </DataGrid.Columns>
            </DataGrid>
 </ControlTemplate>

C#

if (mybool == true)
            scrollWin.gridMain.Template = scrollWin.myGrid;

This seemed like a "just restart Visual Studio" issue, but that didn't help. I don't get any errors before trying to run the program, hovering over "myGrid" shows that it recognizes it as a member of scrollWin. Any ideas?

Solution

  • The ControlTemplate should be defined as a resource with an x:Key instead of an x:Name:

    <ControlTemplate TargetType="DataGrid" x:Key="myGrid">

    If you then put in the Resources dictionary (<Grid.Resources> or whatever type grdMainis) of gridMain, you could get a reference to it like this:

    scrollWin.gridMain.Template = scrollWin.gridMain.Resources["myGrid"] as ControlTemplate;

    The definition of the template itself looks a bit odd but that's anothe issue.