Winform:TreeView Node Collapse without Node Click event firing

Question

I need to prevent a click event occurring on a node when its collapsed. I still want the node to collapse and hide all the children under it but I don't want the click event being fired or the node selected if possible.

Answer 1

If you only need to influence you own code you can use a flag like this:

bool suppressClick = false;

private void treeView1_Click(object sender, EventArgs e)
{
    if (suppressClick) return;
    // else your regular code..
}

private void treeView1_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
    if (e.Node.IsExpanded)
         { suppressClick = false; }
    else { suppressClick = true; }
}

For more control you may need to get at the windows message queue..