DataGridViewCell.OnMouseEnter(Int32) DataGridViewCell.OnMouseEnter(Int32) DataGridViewCell.OnMouseEnter(Int32) DataGridViewCell.OnMouseEnter(Int32) Method

定義

當滑鼠指標移到儲存格上方時呼叫。Called when the mouse pointer moves over a cell.

protected:
 virtual void OnMouseEnter(int rowIndex);
protected virtual void OnMouseEnter (int rowIndex);
abstract member OnMouseEnter : int -> unit
override this.OnMouseEnter : int -> unit
Protected Overridable Sub OnMouseEnter (rowIndex As Integer)

參數

rowIndex
Int32 Int32 Int32 Int32

儲存格的父資料列索引。The index of the cell's parent row.

範例

下列程式碼範例說明如何使用這個方法。The following code example illustrates the use of this method. 這個範例是中所提供之較大範例的一部分。藉由擴充其行為和外觀,自訂 Windows Forms DataGridView 控制項中的儲存格和資料行。This example 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.

// Force the cell to repaint itself when the mouse pointer enters it.
protected override void OnMouseEnter(int rowIndex)
{
    this.DataGridView.InvalidateCell(this);
}

// Force the cell to repaint itself when the mouse pointer leaves it.
protected override void OnMouseLeave(int rowIndex)
{
    this.DataGridView.InvalidateCell(this);
}
' Force the cell to repaint itself when the mouse pointer enters it.
Protected Overrides Sub OnMouseEnter(ByVal rowIndex As Integer)
    Me.DataGridView.InvalidateCell(Me)
End Sub

' Force the cell to repaint itself when the mouse pointer leaves it.
Protected Overrides Sub OnMouseLeave(ByVal rowIndex As Integer)
    Me.DataGridView.InvalidateCell(Me)
End Sub

備註

這個方法與DataGridView.OnCellMouseEnter方法類似。This method is similar to the DataGridView.OnCellMouseEnter method. 在引發DataGridView.CellMouseEnter事件的相同情況下呼叫它,但實際上並不會引發事件。It is called in the same circumstances in which a DataGridView.CellMouseEnter event is raised, but it does not actually raise the event.

適用於

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