Add ContextMeunStrip To Rectangle


Public Class Form1

   Private list As List(Of String) = New List(Of String)
   Private rect As Rectangle = New Rectangle(10, 10, 100, 20)
   Private selectedText As String = Nothing

   Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
       Me.list.Add("Omar")
       Me.List.Add("Amin")
       Me.List.Add("Ibrahim")
   End Sub

   Private Sub Form1_Paint(sender As Object, e As PaintEventArgs) Handles MyBase.Paint
       Using sb As New SolidBrush(Color.Black)
           e.Graphics.FillRectangle(sb, rect)
           Using sf As StringFormat = New StringFormat
               sf.Alignment = StringAlignment.Center
               sf.LineAlignment = StringAlignment.Center
               e.Graphics.DrawString(selectedText, Control.DefaultFont, Brushes.White, rect, sf)
           End Using

       End Using
   End Sub

   Private Sub Form1_MouseDown(sender As Object, e As MouseEventArgs) Handles MyBase.MouseDown
       Dim pt As Point = Me.PointToClient(Cursor.Position)
       If rect.Contains(pt) Then
           Dim strip As ContextMenuStrip = New ContextMenuStrip()
           For i As Integer = 0 To Me.list.Count - 1
               Dim s As String = Me.list(i)
               Dim item As ToolStripMenuItem = CType(strip.Items.Add(s, Nothing, AddressOf Me.OnContextMenuItemClick), ToolStripMenuItem)
               item.Tag = s
           Next
           Dim stripLocation As Point = New Point(Me.rect.Left + (rect.Width / 2), Me.rect.Bottom)
           strip.Show(Me, stripLocation)
           Return
       End If
   End Sub

   Private Sub OnContextMenuItemClick(sender As Object, ea As EventArgs)
       If TypeOf sender Is ToolStripItem AndAlso TypeOf (CType(sender, ToolStripItem)).Tag Is String Then
           Me.selectedText = CType((CType(sender, ToolStripItem)).Tag, String)
           Invalidate(rect)
       End If
   End Sub

End Class

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