Binding a TextBox's Width to its parent container's ActualWidth
- by Praetorian
Hi,
I'm loading a Textbox and a Button into a horizontal StackPanel programmatically. The size of the button (which only contains an Image) is fixed, but I can't get the textbox to fill the available width of its parent. This is what the code looks like:
StackPanel parent = new StackPanel() {
Orientation = Orientation.Horizontal,
HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Top,
};
TextBox textbox = new TextBox() {
HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Top,
//MinWidth = 375,
};
Button btn = new Button() {
Content = new Image() {
MaxHeight = 40,
MaxWidth = 40,
MinHeight = 40,
MinWidth = 40,
Margin = new Thickness( 0 ),
Source = new BitmapImage(
new Uri( "btnimage.png", UriKind.Relative ) ),
},
HorizontalAlignment = HorizontalAlignment.Right,
BorderBrush = new SolidColorBrush( Colors.Transparent ),
Margin = new Thickness( 0 ),
};
btn.Click += ( ( s, e ) => OnBtnClicked( s, e, textbox ) );
parent.Children.Add( textbox );
parent.Children.Add( btn );
If I uncomment the MinWidth setting for the textbox it is displayed as I want it to, but I'd like to not have to specify a width explicitly. I tried adding a binding as follows but that doesn't work at all (the textbox just disappears!)
Binding widthBinding = new Binding() {
Source = parent.ActualWidth,
};
passwdBox.SetBinding( TextBox.WidthProperty, widthBinding );
Thanks for your help in advance!
