不带列标题高度的 Datagrid ActualHeight

Question

我试图在不考虑列标题高度的情况下获取 WPF Datagrid 的 ActualHeight。

如何获得？非常感谢

Answer 1

您可以通过访问DataGrid 的DataGridRowsPresenter 来获取它。喜欢，

var dataGridRowsPresenter = FindVisualChild<DataGridRowsPresenter>(grid);
double actualHeight = dataGridRowsPresenter.ActualHeight;

查找control的Visual Child的方法：

public static T FindVisualChild<T>(DependencyObject current) where T : DependencyObject
{
    if (current == null) return null;
    int childrenCount = VisualTreeHelper.GetChildrenCount(current);
    for (int i = 0; i < childrenCount; i++)
    {
        DependencyObject child = VisualTreeHelper.GetChild(current, i);
        if (child is T) return (T)child;
        T result = FindVisualChild<T>(child);
        if (result != null) return result;
    }
    return null;
}