Reset ContextMenu options after ContextMenuOpening

[Imad]

Hello,

I have a RadTreeView with a context menu showing different options depending on the node level. However, I need to reset the context menu after ContextMenuOpening because once a menu item is removed from the context menu it doesn't display again.

 

01.void radTreeEmployers_ContextMenuOpening(object sender, Telerik.WinControls.UI.TreeViewContextMenuOpeningEventArgs e){
02.    if (e.Node.Level == 1 || e.Node.Level == 2)
03.    {
04.        for (int i = 0; i <= e.Menu.Items.Count - 1; i++)
05.        {
06.            if (e.Menu.Items[i].Name == "addEmployer")
07.                e.Menu.Items.Remove(e.Menu.Items[i]);
08.        }
09.    }
10.}

[Dess | Tech Support Engineer, Principal]

Hello Imad,

Thank you for writing. 

Instead of removing the context menu item, you can just hide it:

public Form1()
{
    InitializeComponent();

    this.radTreeView1.AllowDefaultContextMenu = true;
    this.radTreeView1.ContextMenuOpening += radTreeView1_ContextMenuOpening;
}

bool isVisible = false;

private void radTreeView1_ContextMenuOpening(object sender, Telerik.WinControls.UI.TreeViewContextMenuOpeningEventArgs e)
{
    foreach (RadItem item in e.Menu.Items)
    {
        if (isVisible == false && item.Text == "&Copy")
        {
            item.Visibility = ElementVisibility.Collapsed;
        }
        else
        {
            item.Visibility = ElementVisibility.Visible;
        }
    }
}

private void radButton1_Click(object sender, EventArgs e)
{
    isVisible = !isVisible;
}

I hope this information helps. Should you have further questions I would be glad to help.

Regards,
Dess
Telerik by Progress