Cross-thread operation not valid in Windows Forms

Question

Could anyone help me i have a problem I\'m trying to get this code to work in the background via threadpool but i cannot seem to get it to work i keep getting this error:

Answer 1

This extension method solves the problem too.

/// 

/// Allows thread safe updates of UI components
/// 
public static void InvokeEx(this T @this, Action action) where T : ISynchronizeInvoke
{
    if (@this.InvokeRequired)
    {
        @this.Invoke(action, new object[] { @this });
    }
    else
    {
        action(@this);
    }
}

Use in your worker thread as follows

InvokeEx(x => x.MyControl.Text = "foo");