[Solved] Adding tooltips to a gridview

[Andrew]

I found this in your documentation.

void gridView_RowLoaded(object sender, RowLoadedEventArgs e)
{
  var row = e.Row as GridViewRow;
  if (row != null)
  {
     ToolTip toolTip = new ToolTip()
     {
         Content = row.DataContext,
         ContentTemplate = (DataTemplate) this.LayoutRoot.Resources["MyToolTip"]
     };
     ToolTipService.SetToolTip(row, toolTip);
  }
}

http://www.telerik.com/help/silverlight/gridview-how-to-create-row-tooltip.html
Why is this necessary.  Setting tooltips on or off should be a xaml setting on the grid itself or on individual columns.  This just looks like a workaround to overcome a hole in the xaml options.  Would like the tooltip to be either set to instructions (fixed) or the data in the cell (for overflow) and I should be able to do that in XAML.

I am also not happy that I have to define childrows in c# instead of xaml.  Seems like a strange thing to leave out.

[Maya]

Hi Andrew,

You may define a ToolTip for the rows as follows:

<UserControl.Resources>
        <Style TargetType="telerik:GridViewRow">
        <Setter Property="ToolTipService.ToolTip" Value="MyToolTipText" />
    </Style>
</UserControl.Resources>

Furthermore, you may take a look at this blog post demonstrating another possible approach for adding a ToolTip for a row. Here, the information is actually the RowDetails for the current row.
In case this does not meet your requirements, please give us more details so that we are able to be more helpful and cover exactly your scenario.
As for your second concern, I am quite aware of what you mean by defining child-rows in the code-behind. What are exactly are you referring to?
 

Sincerely yours,
Maya
the Telerik team

[Andrew]

But what if you want the tooptip to be the contents of the cell for some cells, and column specific help for others?

[Maya]

Hello Andrew,

You can easily set a ToolTip displaying the value of the corresponding cell as follows:

<StyleTargetType="{x:Type telerik:GridViewCell}">

        <SetterProperty="ToolTip"Value="{Binding            
                            Value,RelativeSource={RelativeSource Mode=Self}}"/>

</Style>

Furthermore, you may take a look at our demo that demonstrates how to add a ToolTip for a particular column and even apply selector for its template.
 

Greetings,
Maya
the Telerik team

[Chris]

Hi,

The code you have detailed is for WPF. Is there a Silverlight equivalent that will allow you to simply set a default tooltip for all cells in an auto generated grid to the contents of each cell?

Thanx,
Chris

[Maya]

Hello Andrew,

The same scenario for Silverlight can be accomplished with a bit more code. You may either define the Tooltip for each column:

<telerik:GridViewDataColumn DataMemberBinding="{Binding Name}">
    <telerik:GridViewDataColumn.CellTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding Name}" ToolTipService.ToolTip="{Binding Name}" />
        </DataTemplate>
    </telerik:GridViewDataColumn.CellTemplate>
</telerik:GridViewDataColumn>

Or handle the RowLoaded event as follows:

void playersGrid_RowLoaded(object sender, RowLoadedEventArgs e)
{
    var row = e.Row as GridViewRow;
    var cells = row.ChildrenOfType<GridViewCell>();
    foreach (GridViewCell cell in cells)
    {
        cell.SetValue(ToolTipService.ToolTipProperty, (cell.Column as GridViewDataColumn).DataMemberBinding.Path.Path);
    }
}

 

Best wishes,
Maya
the Telerik team

[Selvakumar Savarimuthu]

Hi Team,

    Can we achieve like this in silverlight

        

<StyleTargetType="{x:Type telerik:GridViewCell}">

        <SetterProperty="ToolTip"Value="{Binding            
                            Value,RelativeSource={RelativeSource Mode=Self}}"/>

</Style>

If now how can i without additional templates or code behind.