RESOLVED: want my checkbox to uncheck when context menu appears

[Psychotron]

when my context menu (which comes up when right-clicking on my checkbox) pops up, i want the checkbox to be unchecked. so i have this code for my context menu:

Private Sub RightClick_Popup(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RightClick.Popup
        sender.checked = False
    End Sub

but when my program is run i get this this error: Public member 'checked' on type 'Context Menu' not found.

why isn't this working? what can i do to make this work?

Thanks.

[Dozo_1st]

Instead of sender.checked try chkboxname.checked = false

Dozo

[Frans C]

Because "Checked" is not a property of "Object".
You could cast it to a Checkbox first though.

(not tested but should work)
Dim MyCheckBox as Checkbox
MyCheckBox = CType(sender, Checkbox)
MyCheckbox.Checked = False

[Psychotron]

this didn't work. this time it said 'specified cast is not valid.'

so does than mean i can't cast it to a checkbox? can i cast it to something else then?

[Frans C]

Is RightClick your popup menu?
In that case sender would be the popup menu and not the checkbox.
Try this:
sender.sourcecontrol.checked = True

[Psychotron]

that did the trick! thanks.