using System.Windows; using HandyControl.Data; namespace HandyControl.Controls; public class GridViewAttach { public static readonly DependencyProperty ColumnHeaderHeightProperty = DependencyProperty.RegisterAttached( "ColumnHeaderHeight", typeof(double), typeof(GridViewAttach), new PropertyMetadata(ValueBoxes.Double0Box)); public static void SetColumnHeaderHeight(DependencyObject element, double value) => element.SetValue(ColumnHeaderHeightProperty, value); public static double GetColumnHeaderHeight(DependencyObject element) => (double) element.GetValue(ColumnHeaderHeightProperty); }