本文介绍了从Silverlight DataGrid中的索引获取行的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我试图在Silverlight DataGrid中实现重新排序行。为此,我将扩展默认的 DataGridDragDropTarget
,我需要覆盖并实现以下方法:
I am trying to implement reordering rows in a Silverlight DataGrid. For this I am extending the default DataGridDragDropTarget
, and I need to override and implement the following method:
protected override DataGridRow ContainerFromIndex(DataGrid itemsControl, int index)
{
}
如何从DataGrid和索引获取DataGridRow?
How can I get the DataGridRow from the DataGrid and the Index?
推荐答案
A Herzmeister的回答略有改善,请参阅评论:
A slight improvement on Herzmeister's answer, see comments:
protected override DataGridRow ContainerFromIndex(DataGrid itemsControl, int index)
{
var rowsPresenter = itemsControl.GetVisualDescendants().OfType<DataGridRowsPresenter>().FirstOrDefault();
if (rowsPresenter != null)
{
return rowsPresenter.Children.OfType<DataGridRow>()
.Where(row => row.GetIndex() == index).SingleOrDefault();
}
return null;
}
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