How to customize the appearance of the hint text in the search textbox within the stencil in the WPF Diagram (SfDiagram)?

In the WPF Diagram, you can customize the appearance of the hint text in the search textbox within the Stencil by accessing the search textbox in the OnApplyTemplate override method and applying the desired font styles to the hint text label in the custom stencil class. We have provided the code snippet to achieve this.

Code Snippet:

C#

public class CustomStencil : Stencil
{
   public CustomStencil() : base()
   {

   }

   public override void OnApplyTemplate()
   {
       base.OnApplyTemplate();


       var searchTextBox = this.GetTemplateChild("Part_SearchTextBox") as TextBox;
       if (searchTextBox != null)
       {
           Label label = searchTextBox.Template.FindName("LabelText", searchTextBox) as Label;
           if (label != null)
           {
               label.Content = "Search";
               label.Foreground = new SolidColorBrush(Colors.Red);
               label.Background = new SolidColorBrush(Colors.Yellow);  
               label.FontStyle = FontStyles.Normal;
               label.FontFamily = new FontFamily("Arial");
               label.FontSize = 12;
           }

       }

   }

} 

XAML

<local:CustomStencil BorderBrush="#dfdfdf" Title="Shapes" BorderThickness="1" Width="250" x:Name="stencil" Grid.Row="1"  ShowDisplayModeToggleButton="True" 
ShowSearchTextBox="True"  >
                     <local:CustomStencil.SymbolGroups>
                         <sync:SymbolGroups>
                             <sync:SymbolGroupViewModel Name="Basic Shapes" CategorySource="{StaticResource BasicShapes}" IsChecked="False"/>
                             <sync:SymbolGroupViewModel Name="BPMNEditor Shapes" CategorySource="{StaticResource BPMNEditorShapes}"/>
                         </sync:SymbolGroups>
                     </local:CustomStencil.SymbolGroups>
                 </local:CustomStencil> 

Conclusion
I hope you enjoyed learning about how to customize the appearance of the hint text in the search textbox within the stencil in the WPF Diagram
You can refer to our WPF Diagram feature tour page to learn about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.

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