Hi

 I have the below style for displaying Tool Tip. 

<Style TargetType="{x:Type igDP:CellValuePresenter}" x:Key="TTCC" >
<Setter Property="ToolTip">
<Setter.Value>
<StackPanel>
<TextBlock Text="{Binding DataItem.ConnectedComponentNumber}">
</TextBlock>
<TextBlock Text="{Binding DataItem.ConnectedComponentDescription}">
</TextBlock>
</StackPanel>
</Setter.Value>
</Setter>
</Style>

And referencing the Style as below.

<igDP:Field Name="ConnectedComponentNumber" Label="Connection" Width="Auto" >
<igDP:Field.Settings>
<igDP:FieldSettings CellValuePresenterStyle="{StaticResource ResourceKey=TTCC}"/>
</igDP:Field.Settings>
</igDP:Field>

When the tool tip value is empty, & when  i hover on the cell  it is showing me an empty rectangle. 

i want to hide  that empty rectangle when the value is empty.  How can i achieve this.