If you want to stretch a textbox to the width of the window in WPF you can use the following code

 

Code

<Window x:Class="Ada.Eac.UI.DeployWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="DeployWindow" Height="300" Width="988" SnapsToDevicePixels="True" UseLayoutRounding="True" WindowState="Maximized" WindowStartupLocation="CenterScreen" Icon="/Eac;component/Dashboard.ico">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="60"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
        </Grid.RowDefinitions>
        <Button Grid.Column="1" Content="Deploy" Height="30" Width="100" HorizontalAlignment="Left" Margin="10,10,10,10" Name="deployButton" Cursor="Hand" />
        <TextBox Grid.Column="1" Grid.Row="2"  HorizontalAlignment="Stretch" Name="outputTextBox" Margin="10,10,10,10" VerticalAlignment="Stretch" AcceptsReturn="True" VerticalScrollBarVisibility="Auto" />
    </Grid>
</Window>

 

 

Screendump

image

2 Comments

  1. I tried putting my TextBox in a Grid and it didn’t help, even with the Horz and Vert align set to Stretch as shown. After some frustration I figured out that its not just the immediate container of the TextBox that’s important, but also what container the Grid is in. I had my Grid inside a StackPanel and the StackPanel was forcing the Grid to be as small as possible, thus the TextBox wouldn’t expand either.

    Vahid

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