How do add a text block to the column header?

[Jerry Kurata]

Hi,

We are adding a feature that lets users summarize the data in columns containing lists of numbers.  The user can select to show either the unsummarized, maximum, minimum, or average values.  I have the calculations working, but now need to display the column's current summarization mode in the column header. I want to show this mode in a different font size from the rest of the header, and perhaps offset to the left.

I assume the best way to do this would be to add an addition text block to the header template, bind the current summarization value to a string, and then hide and show the text block based on the presence of the string or a visibility property.  However, I am unsure of the exact changes I need to alter the column header and how to wire up any bound properties to the column header.

Can someone provide me some guidance?

Thanks,

Jerry

[Maya]

Hello Jerry Kurata,

There are a couple of options. Firstly, you may just update the header by concatenating the desired string. It might be something similar to this one:

this.playersGrid.Columns[0].Header = this.playersGrid.Columns[0].Header + " myState";

Another possibility may be to define the Header like:

<telerik:GridViewDataColumn DataMemberBinding="{Binding Name}">

                    <telerik:GridViewDataColumn.Header>

                        <StackPanel Orientation="Vertical">

                            <TextBlock Text="Name" />

                            <TextBlock x:Name="myTxtBlock"/>

                        </StackPanel>

                    </telerik:GridViewDataColumn.Header>

                </telerik:GridViewDataColumn>



 
And handle the change of the text like:

private void Button1_Click(object sender, RoutedEventArgs e)
        {
            var panelche = this.playersGrid.Columns[0].Header as StackPanel;
            var txt = panelche.ChildrenOfType<TextBlock>();
            foreach(TextBlock txtBlock in txt)
            {
                if(txtBlock.Name == "myTxtBlock")
                {
                    txtBlock.Text = "myState";
                }
            }
        }

 

Kind regards,
Maya
the Telerik team