private void SetControlEnabledState(Control control, bool isEnabled)
 {
     if (control.InvokeRequired)
     {
         SetControlEnabled c = SetControlEnabledState;
         Invoke(c, control, isEnabled);
     }
     else
     {
         control.Enabled = isEnabled;
     }
 }
 private void SetControlEnabledState(Control control, bool isEnabled)
 {
     if (control.InvokeRequired)
     {
         SetControlEnabled c = new SetControlEnabled(SetControlEnabledState);
         this.Invoke(c, new object[] { control, isEnabled });
     }
     else
     {
         control.Enabled = isEnabled;
     }
 }