TextBlock WPF Example

WPF > Controls  > TextBlock 

A TextBlock can contain a string in its Text property.

TextBlock is designed to be lightweight and is optimized for single-line display.

Example

<Window x:Class="TextBlock.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="350" Width="525">

    <Grid>

        <TextBlock Name="textBlock1" TextWrapping="Wrap">

            Simple text <Bold>Bold text</Bold> <Italic>Italic text</Italic>

        </TextBlock>

    </Grid>

</Window>

WPF Rectangle with Text

WPF > Rectangle > Add Text

<Window x:Class="Rectangle.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        Title="MainWindow" Height="350" Width="525">

    <Grid  Height="22">

        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="50"/>

            <ColumnDefinition Width="300"/>

            <ColumnDefinition Width="*"/>

        </Grid.ColumnDefinitions>

        <Rectangle Fill="Aqua"

                   Grid.Column="1"

                   HorizontalAlignment="Stretch"

                   />

        <TextBlock 

                   Foreground="Blue"

                   Grid.Column="1"

                   VerticalAlignment="Center"

                   HorizontalAlignment="Center"

                   Text="Rectangle Text"

                   TextTrimming="CharacterEllipsis" />

    </Grid>

</Window>

WPF DependencyProperty Register Default Value

WPF > DependencyProperty > Register > Default Value

public static readonly DependencyProperty

UpdateSourceTriggerProperty = DependencyProperty.Register("UpdateSourceTrigger", typeof(UpdateSourceTrigger),

typeof(TextBox),

new FrameworkPropertyMetadata(UpdateSourceTrigger.LostFocus)); // add your default value here

WPF Validation remove red border on error

WPF  > Validation > Remove red border on error

Validation.ErrorTemplate="{x:Null}

Clear Validation Error On TextBox TextChanged event WPF

WPF > Validation > ClearInvalid

Removes all ValidationError objects from the specified BindingExpression object.

Example

this.TextChanged += TextBox_TextChanged;

void TextBox_TextChanged(object sender, TextChangedEventArgs e)

{

     Validation.ClearInvalid(((TextBox)sender).GetBindingExpression(TextBox.TextProperty));

}

DataGrid WPF show row number

WPF > Controls > ItemsControl > DataGrid > Show row number

XAML

<DataGrid 

        x:Name="dataGrid"

        LoadingRow="dataGrid_LoadingRow"

Code

private void dataGrid_LoadingRow(object sender, DataGridRowEventArgs e)

{

  // show row number

    e.Row.Header = (e.Row.GetIndex() + 1).ToString();

}

DataGridRow change color of selected row

WPF > DataGrid >  Color of selected row

  <DataGrid.Resources>

<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="#FFB8AEAE"/>

  </DataGrid.Resources>