GridLength Structure
Represents the length of elements that explicitly support Star unit types.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Elements such as ColumnDefinition and RowDefinition use this type to describe width and height in order to support variable distribution of available space.
The following example shows how to create and use an instance of GridLengthConverter. The example defines a custom method called changeCol, which passes the ListBoxItem to a GridLengthConverter that converts the Content of a ListBoxItem to an instance of GridLength. The converted value is then passed back as the value of the Width property of the ColumnDefinition element.
The example also defines a second custom method, called changeColVal. This custom method converts the Value of a Slider to a String and then passes that value back to the ColumnDefinition as the Width of the element.
Note that a separate Extensible Application Markup Language (XAML) file defines the contents of a ListBoxItem.
To view the complete sample, including the related XAML file, see GridLengthConverter Object Sample.
private void changeColVal(object sender, RoutedEventArgs e)
{
txt1.Text = "Current Grid Column is " + hs1.Value.ToString();
}
private void changeCol(object sender, SelectionChangedEventArgs args)
{
ListBoxItem li = ((sender as ListBox).SelectedItem as ListBoxItem);
GridLengthConverter myGridLengthConverter = new GridLengthConverter();
if (hs1.Value == 0)
{
GridLength gl1 = (GridLength)myGridLengthConverter.ConvertFromString(li.Content.ToString());
col1.Width = gl1;
}
else if (hs1.Value == 1)
{
GridLength gl2 = (GridLength)myGridLengthConverter.ConvertFromString(li.Content.ToString());
col2.Width = gl2;
}
else if (hs1.Value == 2)
{
GridLength gl3 = (GridLength)myGridLengthConverter.ConvertFromString(li.Content.ToString());
col3.Width = gl3;
}
}
More Code
| How to: Build a Standard UI Dialog Box by Using Grid | This example shows how to create a standard user interface (UI) dialog box by using the Grid element. |
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
