使用combobox C＃绑定树视图 [英] Bind treeview with combobox C#

问题描述

我有Treeview与

节点

-Node1

-Node1Child

-Node2

-Node2Child



和带数据的ComboBox

Combo1

Combo2



如果Node1Child单击然后在ComboBox中显示Node1Child如何使其工作并且可以更改为Combo2值？



我曾尝试过：



i搜索无处不在，无法找到C＃

i have Treeview with
Node
-Node1
-Node1Child
-Node2
-Node2Child

and ComboBox with data
Combo1
Combo2

how to make it work if Node1Child Clicked then in ComboBox Show Node1Child and can be changed woth Combo2 value?

What I have tried:

i search everywhere and cannot find solution for C#

推荐答案

的解决方案 AfterSelect（）事件仅触发新选择，如果已选中则不会触发。您可能希望捕获TreeView的Click事件。

The AfterSelect() event only fires for new selections and won't fire if already selected. You may want to capture the TreeView's Click event instead.

private void treeView1_Click(object sender, EventArgs e)
 {
   TreeViewHitTestInfo info = treeView1.HitTest(treeView1.PointToClient(Cursor.Position));
   if (info != null)
     MessageBox.Show(info.Node.Text);
 }

编辑：



以下是我认为你试图做的事情：

Here is what I think that you are attempting to do:

private void treeView1_Click(object sender, EventArgs e)
{
    TreeViewHitTestInfo info = treeView1.HitTest(treeView1.PointToClient(Cursor.Position));
    if (info != null)
    {
        comboBox1.DisplayMember = "Text";
        comboBox1.DataSource = info.Node.Nodes;
    }
}

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    var node = comboBox1.SelectedItem as TreeNode;
    if (node == null)
        return;
    treeView1.SelectedNode = node;
    treeView1.Focus();
}

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