C#

SendKeys.Send("{BACKSPACE}");

public class DelayPaintGroupBox : GroupBox
{
    private bool paintAllowed;

    public DelayPaintGroupBox()
        : base()
    {
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        if (paintAllowed)
        {
            base.OnPaint(e);
        }
    }

    public bool PaintAllowed
    {
        get
        {
            return this.paintAllowed;
        }
        set
        {
            if (this.paintAllowed != value)
            {
                this.paintAllowed = value;
            }
        }
    }
}

/// <summary>
/// Gets or sets the <see cref="P:Enabled"/> property and
/// can be called from any thread.
/// </summary>
/// <value><c>true</c> if enabled; otherwise, <c>false</c>.</value>
public Boolean SafeEnabled {
	get {
		if (true == this.InvokeRequired) {
			Boolean enabled = false;
			MethodInvoker method = new MethodInvoker(
				delegate {
					enabled = this.Enabled;
				});
			Invoke(method);
			return enabled;
		}
		else {
			return this.Enabled;
		}
	}
	set {
		if (true == this.InvokeRequired) {
			MethodInvoker method = new MethodInvoker(
				delegate {
					this.Enabled = value;
				});
			Invoke(method);
		}
		else {
			this.Enabled = value;
		}
	}
}

//Declaration<br />
public delegate void ChangeControlTextDelegate(string _NewText, Control _Control);<br />
<br />
//Method to call with delegate<br />
private void ChangeControlText(string _Newtext, Control _Control)<br />
<br />
<br />
//Use... Changing text of a control "control" in container form code<br />
if (control.InvokeRequired)<br />
{<br />
       ChangeControlTextDelegatedCallback dCallback = <br />
            new ChangeControlTextDelegate(ChangeControlText);<br />
            <br />
                this.Invoke(dCallback, new object[] { "newtext", control});<br />
}<br />
else<br />
{<br />
     control.Text = "newText";<br />
}