Re: tree-view item and context menu

[Darin]

My tree is a menu with the parents the different applications (AR, AP,
GL, etc), under each application could be another sub-menu (code file,
reports), or an actual selectable field (customer file).

So, i open AR (by clicking on the plus icon), left-click on customer
file once (so it is highlighted in blue) then right click and select my
menu option. The node that comes back from the cursor position is an
application that is 10 applications down in the list from AR.
Private Sub mAddtoFavorites_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles mAddtoFavorites.Click

Dim hti As TreeViewHitTestInfo = trMenu.HitTest(Cursor.Position)
ShowMessage(DRStr(Cursor.Position.X) & " - " & DRStr(Cursor.Position.Y))

If hti.Node Is Nothing Then
Else
Dim xnode As TreeNode
xnode = CType(hti.Node, TreeNode)
ShowMessage(xnode.Text)
End If
End Sub

The customer file that is highlighted is the third one down:

AR
[+] code file
|- Customer File

Darin

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[Tom Shelton]

On 2008-06-23, Darin <darin_nospam@nospameverwrote:

My tree is a menu with the parents the different applications (AR, AP,
GL, etc), under each application could be another sub-menu (code file,
reports), or an actual selectable field (customer file).

So, i open AR (by clicking on the plus icon), left-click on customer
file once (so it is highlighted in blue) then right click and select my
menu option. The node that comes back from the cursor position is an
application that is 10 applications down in the list from AR.
Private Sub mAddtoFavorites_Click(ByVal sender As System.Object, ByVal e
As System.EventArgs) Handles mAddtoFavorites.Click

Dim hti As TreeViewHitTestInfo = trMenu.HitTest(Cursor.Position)
ShowMessage(DRStr(Cursor.Position.X) & " - " & DRStr(Cursor.Position.Y))

If hti.Node Is Nothing Then
Else
Dim xnode As TreeNode
xnode = CType(hti.Node, TreeNode)
ShowMessage(xnode.Text)
End If
End Sub

Darin, try doing it in the ContextMenu.Opening Event, as I showed in the
original code.

--
Tom Shelton

[Darin]

I tried that and it still isn't recognizing the node i am on. Plus, my
context menu has many other options that aren't specific to that node,
just that one option is node-specific.

Darin

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[Tom Shelton]

On 2008-06-23, Darin <darin_nospam@nospameverwrote:

I tried that and it still isn't recognizing the node i am on. Plus, my
context menu has many other options that aren't specific to that node,
just that one option is node-specific.

Darin

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Well, that's interesting... Because I use this technique all the time :) In
fact, hear is some C# code, from a working application:

private void contextMenu_Opening (object sender, CancelEventArgs e)
{
TreeViewHitTestInfo hitTestInfo = this.tvwObjectExplorer.HitTest ( this.PointToClient (Cursor.Position));
e.Cancel = (hitTestInfo.Node == null || (! (hitTestInfo.Node is LeafNodeBase)));
mnuGenerateEntitiy.Tag = (e.Cancel ? null : hitTestInfo.Node);
}

This is a sample from a small code generation utility I wrote - and it works
perfectly for me. We are dealing with Windows forms right? :)

--
Tom Shelton

[Darin]

My C# is rusty (okay - non-existant) but it looks like you are setting
the tag on the menu to be the node name or the node itself.
You are saying that when you do that, the node is the actual child node
and not the parent. In my example:

AR
[+] Code File
| - Customer File

By right-clicking on Customer File your node would be the node that is
customer file, so the node.text would say that - right?

Darin

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[Tom Shelton]

On 2008-06-23, Darin <darin_nospam@nospameverwrote:

My C# is rusty (okay - non-existant) but it looks like you are setting
the tag on the menu to be the node name or the node itself.
You are saying that when you do that, the node is the actual child node
and not the parent. In my example:

AR
[+] Code File
| - Customer File

By right-clicking on Customer File your node would be the node that is
customer file, so the node.text would say that - right?

Darin

*** Sent via Developersdex http://www.developersdex.com ***

Yep. My application is similar in that the treeview is a navigation menu -
thought it is dynamically generated by looking at the database schema, but
I only show the context menu on certain kinds of nodes (I have a node hiearchy
whose root is treenode). The node that is assigned to the tag, is the node
that was right clicked on. I'm not suggesting that is the way to do it (set
the tag), you may want to set the selectednode - but that was the way that
worked best for my application :)

--
Tom Shelton