DataGridView.Clear() [英] DataGridView.Clear()
本文介绍了DataGridView.Clear()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
这里谈到的麻烦。
我想从DataGridView删除所有行。
这我怎么添加行:
Here comes the trouble. I want to delete all rows from datagridview. This how i add rows:
private void ReadCompleteCallback(object clientHandle, Opc.Da.ItemValueResult[] results)
{
foreach (Opc.Da.ItemValueResult readResult in results)
{
dataGridView1.Invoke(new MethodInvoker(() => dataGridView1.Rows.Add(readResult.ItemName, readResult.Quality, readResult.Timestamp,readResult.Value)));
}
}
和它如何我清楚的GridView:
And its how i clear gridview:
private void treeView1_SelectionsChanged(object sender, EventArgs e)
{
dataGridView1.Rows.Clear();
items = new Opc.Da.Item[treeView1.SelectedNodes.Count];
foreach (TreeNode x in treeView1.SelectedNodes) {
items[treeView1.SelectedNodes.IndexOf(x)] = new Opc.Da.Item();
items[treeView1.SelectedNodes.IndexOf(x)].ItemName = x.Text;
}
group.AddItems(items);
group.Read(group.Items, 123, new Opc.Da.ReadCompleteEventHandler(ReadCompleteCallback), out req);
}
在调试我看到dataGridVIew1.Rows.Count = 0,但在形式,格犯规变得清晰起来。有什么意义呢?
在树的每一个选择,我想在表中看到新行。
in debug i see that dataGridVIew1.Rows.Count=0, but on form, grid doesnt become clear. what a point? on each selection in tree, i want to see new rows in table.
推荐答案
我打赌你只需要刷新数据网格。试试这个:
I'm betting you just need to refresh the datagrid. Try this:
dataGridView1.Rows.Clear();
dataGridView1.Refresh();
如果这个工程......你可能要重新考虑你的应用程序的一部分。
If this works... you might want to rethink this part of your application.
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