CODEWITHSUNDEEP
c#winformsuser-interfacetreeview
Martin
Martin

Reputation: 40365

Right click select on .Net TreeNode

I am trying to show a popup menu on my treeview when users right click - allowing them to choose context sensitive actions to apply against the selected node.

At the moment the user has to left click node and then right click to choose.

Is it possible to make a right click on a node select that node - and if so what is the best method to do this.

Upvotes: 31

Views: 35633

Answers (3)

Sasha Reminnyi
Sasha Reminnyi

Reputation: 3532

yes. Here is processing for NodeMouseClick event: 

private void treeView1_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
      treeView1.SelectedNode = e.Node;
}

Upvotes: 16

Kaleb Pederson
Kaleb Pederson

Reputation: 46509

Both left and right clicks fire a click event and cause the selection to change. However, in certain circumstances (that I haven't yet bothered to trace down) the selection will change from the node that was right clicked to the originally selected node.

In order to make sure that the right click changes the selection, you can forcibly change the selected node by using the MouseDown event:

treeView.MouseDown += (sender, args) =>
    treeView.SelectedNode = treeView.GetNodeAt(args.X, args.Y);

A little better, as one of the other posters pointed out, is to use the NodeMouseClick event:

treeView.NodeMouseClick += (sender, args) => treeView.SelectedNode = args.Node;

Upvotes: 60

nik0lai
nik0lai

Reputation: 2655

Drag a context menu strip onto the form then:

 private void treeView1_MouseDown(object sender, MouseEventArgs e)
 {
   if (e.Button == MouseButtons.Right)
   {
       // Display context menu for eg:
       ContextMenu1.Show();
   }
}

Upvotes: 5

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