没有列标题高度的Datagrid ActualHeight

Posted 2021-05-02

我试图获取WPF Datagrid的ActualHeight而不考虑列标题高度。

怎么做到的？非常感谢

答案

你可以通过访问DataGridRowsPresenter的DataGrid来获得它。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;
}