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need sample code on how to get the TreeView control to select and foucs on the node that is the parent node of the child node that I juts double clicked on the listivew control. And the TreeView con

Hi, I'm using vs2005 .net 2.0. I need some sample code for ListView_MouseDoubleClick event. I have a left pane of a treeview control and a right pane of a Listview control that list 1 level of the children nodes of the TreeView's selected node. I need some sample code to perform behvior like one sees in the Active Directory Users and Computers snap-in.

I need sample code on how to get the TreeView control to select and foucs on the node that is the parent node of the child node that I juts double clicked on the listivew control. And the TreeView control would also expand 1 level.

Thanks.

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Expert1701

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Mihai Stancescu

You can try this way:
//You can put in the tag property of the list view item the node reference...
private void treeView_AfterSelect(object sender, TreeViewEventArgs e)
{
listView.Items.Clear();
foreach (TreeNode node in e.Node.Nodes)
{
ListViewItem li = new ListViewItem(node.Text);
li.Tag = (object)node;
}
}

private void listView_DoubleClick(object sender, EventArgs e)
{
if (listView.SelectedItems[0]!=null)
{
TreeNode aNode = listView.SelectedItems[0].Tag as TreeNode;
if (aNode != null)
tree.SelectedNode = aNode;
}
}

Hope this helps.
Regards,
Mishu

lapucca

ASKER

Hi Mishu,

TreeNode aNode = listView.SelectedItems[0].Tag as TreeNode;
seems to always returning null.
Thanks.

Mihai Stancescu

Sorry I forgot something...
Add this line at the after select event:
listView.Items.Add(li);

Regards,
Mishu

lapucca

ASKER

Hi Mishu,

I've added the code as follow but when I double clicked on the Listview's node, nothing happens. Thanks.

private void ppTree_AfterSelect(object sender, TreeViewEventArgs e)
{

NodeDetail.Items.Clear();
foreach (TreeNode node in e.Node.Nodes)
{
ListViewItem li = new ListViewItem(node.Text);
li.Tag = (object)node;
NodeDetail.Items.Add(li);
}

............

private void NodeDetail_MouseDoubleClick(object sender, MouseEventArgs e)
{

if (NodeDetail.SelectedItems[0]!=null)
{
TreeNode aNode = NodeDetail.SelectedItems[0].Tag as TreeNode;
if (aNode != null)
ppTree.SelectedNode = aNode;
}

}

Mihai Stancescu

Replace your current method with this:

private void NodeDetail_MouseDoubleClick(object sender, MouseEventArgs e)
{

if (NodeDetail.SelectedItems[0]!=null)
{
TreeNode aNode = NodeDetail.SelectedItems[0].Tag as TreeNode;
if (aNode != null)
{
ppTree.SelectedNode = aNode;
aNode.EnsureVisible();
ppTree.Focus();
}
}

}

Hope it solves the problem.
Regards,
Mishu

Expert1701

lapucca, did you try the sample application I posted?