Hi everyone I want some help in my paint application, I am using pictuerbox to draw on it but in the last day my requirement is change that the user want to open an image and do all the functionality on it.. I try to open an image but when I choose some option to draw on the image its didn’t show...
I want some clue quickly please …

this is my code for open an image ...

Private Sub OpenToolStripMenuItem_Click(sender As System.Object, e As System.EventArgs) Handles OpenToolStripMenuItem.Click
        Panel2.Enabled = True
        PictureBox.BackColor = Color.White
        Dim open As New OpenFileDialog()
        open.Filter = "Image Files(*.png; *.jpg; *.bmp)|*.png; *.jpg; *.bmp"
        If open.ShowDialog() = DialogResult.OK Then
            Dim fileName As String = System.IO.Path.GetFullPath(open.FileName)
            PictureBox.Image = New Bitmap(open.FileName)
        End If

I have this exception show to me..

System.ArgumentNullException was unhandled
  Message=Value cannot be null.
Parameter name: image
  ParamName=image
  Source=System.Drawing
  StackTrace:
       at System.Drawing.Graphics.FromImage(Image image)
       at Paint_Note.Form1.OpenToolStripMenuItem_Click(Object sender, EventArgs e) in C:\Users\Lucky\Documents\Visual Studio 2010\Projects\Paint\Paint\Paint_Note.vb:line 340
       at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
       at System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
       at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
       at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
       at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
       at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
       at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
       at System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
       at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       at System.Windows.Forms.ToolStrip.WndProc(Message& m)
       at System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
       at Paint_Note.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: 

It appears you're using a keyword for an object name. Try making the object name unique, PictureBox1, for instance.

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