Question

I’m trying to create datagrid tooltip entirely in code behind file.
Tooltip XAML code looks like this:

<data:DataGrid>
<data:DataGrid.Columns>
    <data:DataGridTextColumn Header="My Header">
        <data:DataGridTextColumn.HeaderStyle>
            <Style TargetType="dataprimitives:DataGridColumnHeader">
                <Setter Property="ContentTemplate">
                    <Setter.Value>
                        <DataTemplate>
                            <ContentControl Content="{Binding}">
                                <ToolTipService.ToolTip>
                                    <ToolTip Content="My Tooltip"></ToolTip>
                                </ToolTipService.ToolTip>
                            </ContentControl>
                        </DataTemplate>
                    </Setter.Value>
                </Setter>
            </Style>
        </data:DataGridTextColumn.HeaderStyle>
    </data:DataGridTextColumn>
</data:DataGrid.Columns>

I’m stuck at the <Setter Property="ContentTemplate">. My current code:

                Style style = new Style();
                style.TargetType = typeof(DataGridColumnHeader);
                Setter setter = new Setter();
                setter.Property = DependencyProperty.Register("ContentTemplate", typeof(DataTemplate), typeof(FrameworkElement), null);

Anyone could show me an example of implementing this part in code behind:

<Setter Property="ContentTemplate">
                        <Setter.Value>
                            <DataTemplate>
                                <ContentControl Content="{Binding}">
                                    <ToolTipService.ToolTip>
                                        <ToolTip Content="My Tooltip"></ToolTip>
                                    </ToolTipService.ToolTip>
                                </ContentControl>
                            </DataTemplate>
                        </Setter.Value>
                    </Setter>

Thank you!

Answer 1

Once you have got the handle for the column to which you want to add the tooltip then you try below.

var style = new Style(typeof(DataGridColumnHeader));
style.Setters.Add(new Setter(ToolTipService.ToolTipProperty, "Customer Name"));

Now that you have defined you tooltip value then you can set the HeaderStyle property of the column something like this…

dgCustDetails.Columns[0].HeaderStyle = style;

where dgCustDetails is the datagrid’s name.