I’ve used this and getting the “Cross-thread operation not valid: Control ” accessed from a thread other than the thread it was created on” exception still

public partial class Form1 : Form
{
delegate Control ControlCreateDelegate();
private delegate void SetNewControlCallback();
Control c;

public Form1()
{
InitializeComponent();

ControlCreateDelegate cdr = new ControlCreateDelegate(CreateMyControl);
cdr.BeginInvoke(new AsyncCallback(ControlCreationFinished), null);

}
Control CreateMyControl()
{
return new ClassLibrary1.MyUserControl().CreateMyControl();
}
void ControlCreationFinished(IAsyncResult ar)
{
int id = Thread.CurrentThread.ManagedThreadId;
c = cdr.EndInvoke(ar);
c.Text = String.Format(“Textbox created by thread {0}”, Thread.CurrentThread.ManagedThreadId);
c.Width = TextRenderer.MeasureText(c.Text, c.Font).Width;
c.Location = new Point(0, 100);
this.Invoke( new MethodInvoker(SetNewControl));
this.EnableButton();
}
void SetNewControl()
{
int id = Thread.CurrentThread.ManagedThreadId;
if (InvokeRequired)
{
SetNewControlCallback callBack = new SetNewControlCallback(SetNewControl);
this.Invoke(new MethodInvoker(callBack));
//return;
}
else
this.panel1.Controls.Add(c); //// <<< Getting error at this line
}
}

Thanks for help.

-Kathir

Later,

I am new in multithreading. Please give me detail information about multithreading.