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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)
{
    base.OnMouseEnter(e);

    this.rolloverValue = true;

    this.Invalidate();
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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