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InvalidateCell Method (DataGridViewCell)
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DataGridView.InvalidateCell Method (DataGridViewCell)

Invalidates the specified cell of the DataGridView, forcing it to be repainted.

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

member InvalidateCell : 
        dataGridViewCell:DataGridViewCell -> unit

Parameters

dataGridViewCell
Type: System.Windows.Forms.DataGridViewCell

The DataGridViewCell to invalidate.

ExceptionCondition
ArgumentException

dataGridViewCell does not belong to the DataGridView.

ArgumentNullException

dataGridViewCell is a null reference (Nothing in Visual Basic).

This method is useful to force a cell repaint in conditions that would not normally cause a cell to be repainted. For example, you can use this method with a custom cell type that changes its appearance as a result of external events.

For more information about painting and invalidation, see Invalidate.

The following code example illustrates how to use this method in a customized DataGridViewCell that is painted with a custom border when the mouse pointer rests on it. In the example, the cell is invalidated when the mouse pointer enters or leaves it.

This code is part of a larger example available in How to: Customize Cells and Columns in the Windows Forms DataGridView Control by Extending Their Behavior and Appearance.

No code example is currently available or this language may not be supported.

.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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