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How to add controls like TextBox in GroupDropArea in WPF DataGrid?

28 mins read
In WPF DataGrid (SfDataGrid), you can customize the GroupDropArea appearance like adding or replacing any control inside it by customizing its template. By customizing the GroupDropArea template, a TextBox control is added inside the GroupDropArea. By using the GroupDropArea toggle button you can expand and collapse the GroupDropArea as well as the TextBox.
<Window.Resources>
    <!-- Merging the dictionary for resources that are required for customizing this template -->
    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="/Syncfusion.SfGrid.WPF;component/Control/GroupDropArea/Themes/Generic.xaml"/>
    </ResourceDictionary.MergedDictionaries>

    <Style TargetType="syncfusion:GroupDropArea">
        <Setter Property="Background" Value="White"/>
        <Setter Property="Foreground" Value="Gray"/>
        <Setter Property="BorderBrush" Value="Gray"/>
        <Setter Property="BorderThickness" Value="1,1,1,0"/>
        <Setter Property="Focusable" Value="False"/>
        <Setter Property="IsTabStop" Value="False"/>
        <Setter Property="Template">
            <Setter.Value>
                <!-- ControlTemplate for GroupDropArea -->
                <ControlTemplate TargetType="syncfusion:GroupDropArea">
                    <Border BorderBrush="{TemplateBinding BorderBrush}"
                            BorderThickness="{TemplateBinding BorderThickness}"
                            SnapsToDevicePixels="True">

                        <VisualStateManager.VisualStateGroups>
                            <!-- Animation for Expanded and collapsed Visual States -->
                            <VisualStateGroup x:Name="ExpansionStates">
                                <VisualStateGroup.Transitions>
                                    <VisualTransition GeneratedDuration="0"/>
                                </VisualStateGroup.Transitions>
                                <!-- Collapsed Visual State Transition -->
                                <VisualState x:Name="Collapsed">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames 
                                            Storyboard.TargetName="PART_GroupDropAreaBorder" 
                                            Storyboard.TargetProperty="(FrameworkElement.Margin)">
                                            <DiscreteObjectKeyFrame KeyTime="0:0:0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Thickness>0,0,0,0</Thickness>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames 
                                            Storyboard.TargetName="PART_GroupDropAreaBorder" 
                                            Storyboard.TargetProperty="(FrameworkElement.Height)">
                                            <EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0">
                                                <EasingDoubleKeyFrame.EasingFunction>
                                                    <CircleEase />
                                                </EasingDoubleKeyFrame.EasingFunction>
                                            </EasingDoubleKeyFrame>
                                        </DoubleAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames 
                                            Storyboard.TargetName="TextBox" 
                                            Storyboard.TargetProperty="(FrameworkElement.Height)">
                                            <EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0">
                                                <EasingDoubleKeyFrame.EasingFunction>
                                                    <CircleEase />
                                                </EasingDoubleKeyFrame.EasingFunction>
                                            </EasingDoubleKeyFrame>
                                        </DoubleAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                                <!-- Expanded Visual State Transition -->
                                <VisualState x:Name="Expanded">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames 
                                            Storyboard.TargetName="PART_GroupDropAreaBorder" 
                                            Storyboard.TargetProperty="(FrameworkElement.Margin)">
                                            <DiscreteObjectKeyFrame KeyTime="0:0:0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <Thickness>0,0,0,20</Thickness>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames 
                                            Storyboard.TargetName="PART_GroupDropAreaBorder" 
                                            Storyboard.TargetProperty="(FrameworkElement.Height)">
                                            <EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="28">
                                                <EasingDoubleKeyFrame.EasingFunction>
                                                    <CircleEase />
                                                </EasingDoubleKeyFrame.EasingFunction>
                                            </EasingDoubleKeyFrame>
                                        </DoubleAnimationUsingKeyFrames>
                                        <DoubleAnimationUsingKeyFrames 
                                            Storyboard.TargetName="TextBox" 
                                            Storyboard.TargetProperty="(FrameworkElement.Height)">
                                            <EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="28">
                                                <EasingDoubleKeyFrame.EasingFunction>
                                                    <CircleEase />
                                                </EasingDoubleKeyFrame.EasingFunction>
                                            </EasingDoubleKeyFrame>
                                        </DoubleAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>

                        <Grid Background="{TemplateBinding Background}">
                            <Grid.RowDefinitions>
                                <RowDefinition x:Name="rd0" Height="Auto"/>
                                <RowDefinition x:Name="rd1" Height="*"/>
                            </Grid.RowDefinitions>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition x:Name="cd0" Width="*"/>
                                <ColumnDefinition x:Name="cd1" Width="Auto"/>
                            </Grid.ColumnDefinitions>

                            <!-- ToggleButton -->
                            <ToggleButton Grid.Row="0"
                                          Grid.Column="1"
                                          Width="45"
                                          Height="12"
                                          Margin="90,2,2,2"
                                          Background="Transparent"
                                          IsChecked="{Binding Path=IsExpanded, RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay}"
                                          IsTabStop="False"
                                          IsThreeState="False"
                                          SnapsToDevicePixels="True"
                                          Style="{StaticResource ToggleButtonStyle}"/>

                            <!-- TextBox -->
                            <Grid x:Name="TextBox" Grid.Row="1" Grid.Column="1" Margin="15,0,0,0">
                                <TextBox x:Name="PART_TextBox"
                                         Height="20" 
                                         Margin="3,0,3,0" 
                                         Width="120"
                                         HorizontalAlignment="Stretch"
                                         VerticalAlignment="Center"
                                         BorderBrush="#FF727272"
                                         BorderThickness="1"/>
                            </Grid>

                            <Border Name="PART_GroupDropAreaBorder"
                                    Grid.Row="1"
                                    Grid.Column="0"
                                    Grid.ColumnSpan="1"
                                    Height="0"
                                    SnapsToDevicePixels="True">
                                <!-- GroupDropAreaGrid and GroupDropArea Items Panel -->
                                <Grid x:Name="PART_GroupDropAreaGrid"
                                      MaxHeight="30"
                                      Margin="40,0,0,0">
                                    <Grid HorizontalAlignment="Center"
                                          VerticalAlignment="Stretch"
                                          Opacity="0.5"
                                          Visibility="{TemplateBinding WatermarkTextVisibility}">
                                        <Rectangle RadiusX="5"
                                                   RadiusY="5"
                                                   SnapsToDevicePixels="True"
                                                   Stroke="{TemplateBinding Foreground}"
                                                   StrokeDashArray="5,5"
                                                   StrokeThickness="1"/>
                                        <TextBlock Margin="40,5"
                                                   HorizontalAlignment="Center"
                                                   VerticalAlignment="Center"
                                                   FontSize="14"
                                                   Foreground="{TemplateBinding Foreground}"
                                                   Text="{TemplateBinding GroupDropAreaText}"/>
                                    </Grid>
                                    <StackPanel Name="PART_StackPanel"
                                                MaxHeight="30"
                                                Orientation="Horizontal"/>
                                </Grid>
                            </Border>
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Window.Resources>

The following screenshot displays the TextBox control without grouping in GroupDropArea.

C:\Users\Jayapradha\Desktop\Group\Capture.PNG

 

 

The following screenshot displays the TextBox control with Grouping in GroupDropArea.

C:\Users\Jayapradha\Desktop\Group\Capture.PNG

 

You can refer to the sample from the following location to customize the style for GroupDropArea.

 

Conclusion
I hope you enjoyed learning about how to add controls like TextBox in GroupDropArea in DataGrid.
You can refer to our WPF DataGrid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications. You can also explore our WPF DataGrid example to understand how to create and manipulate data.
For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls.
If you have any queries or require clarifications, please let us know in the comments section below. You can also contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!


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