ToolStripItem.Invalidate Method ()


Invalidates the entire surface of the ToolStripItem and causes it to be redrawn.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public void Invalidate()

The following code example demonstrates how to use the Invalidate method for custom rendering. This code example is part of a larger example provided for the ToolStripItem class.

// This method defines the behavior of the MouseEnter event.
// It sets the state of the rolloverValue field to true and
// tells the control to repaint.
protected override void OnMouseEnter(EventArgs e)

    this.rolloverValue = true;


.NET Framework
Available since 2.0
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