Answer

WPF Change Style of all TextBoxes in Grid

ivan ivan

11y

Dear All

Hi everyone,

I am using control template to change all the textboxes' style in specific Grid, all textboxes outside the Grid will have different style
I works fine with the following code, but I need one more enhancement

I would like to change a textbox's borderbrush to red when a button click, however, since I am set the color to Blue in style, the code textBox1.BorderBrush = Brushes.Red; is not working

How to modify the controlTemplate that normal style is Blue border and when a button is clicked, the code textBox1.BorderBrush = Brushes.Red; can change the border to Red?

Thanks
Ivan

Here are my codes:

XAML:

<Window.Resources>
<Style x:Key="LargeGridStyle" TargetType="{x:Type Grid}">
<Style.Resources>
<Style TargetType="{x:Type TextBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBoxBase}">
<Border Name="Border" CornerRadius="2" Padding="2" BorderThickness="1.5">
<Border.Background>
<SolidColorBrush Color="White" />
</Border.Background>
<Border.BorderBrush>
<SolidColorBrush Color="Blue" />
</Border.BorderBrush>
<ScrollViewer Margin="0" x:Name="PART_ContentHost" />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Style.Resources>
</Style>
</Window.Resources>
<Grid Style="{StaticResource LargeGridStyle}" Height="158" HorizontalAlignment="Left" Margin="35,12,0,0" Name="grid1" VerticalAlignment="Top" Width="336">
<TextBox Height="23" HorizontalAlignment="Left" Margin="29,21,0,0" Name="textBox1" VerticalAlignment="Top" Width="120" />
<TextBox Height="53" HorizontalAlignment="Left" Margin="29,59,0,0" Name="textBox2" VerticalAlignment="Top" Width="120" />
</Grid>
<TextBox Height="96" HorizontalAlignment="Left" Margin="241,192,0,0" Name="textBox3" VerticalAlignment="Top" Width="120" />
<Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="385,173,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />

Code Behind:

private void button1_Click(object sender, RoutedEventArgs e)
{
textBox1.BorderBrush = Brushes.Red;
}