TableLayoutCellPaintEventHandler 代理人

定義

public delegate void TableLayoutCellPaintEventHandler(System::Object ^ sender, TableLayoutCellPaintEventArgs ^ e);

public delegate void TableLayoutCellPaintEventHandler(object sender, TableLayoutCellPaintEventArgs e);

public delegate void TableLayoutCellPaintEventHandler(object? sender, TableLayoutCellPaintEventArgs e);

type TableLayoutCellPaintEventHandler = delegate of obj * TableLayoutCellPaintEventArgs -> unit

Public Delegate Sub TableLayoutCellPaintEventHandler(sender As Object, e As TableLayoutCellPaintEventArgs)

參數

範例

下列範例示範如何 TableLayoutCellPaintEventHandler 委派來自訂控制項的外觀 TableLayoutPanel 。 此程式碼範例是提供給 控制項之較大範例的 TableLayoutPanel 一部分。

public class DemoTableLayoutPanel : TableLayoutPanel
{
    protected override void OnCellPaint(TableLayoutCellPaintEventArgs e)
    {
        base.OnCellPaint(e);

        Control c = this.GetControlFromPosition(e.Column, e.Row);

        if ( c != null )
        {
            Graphics g = e.Graphics;

            g.DrawRectangle(
                Pens.Red, 
                e.CellBounds.Location.X+1,
                e.CellBounds.Location.Y + 1,
                e.CellBounds.Width - 2, e.CellBounds.Height - 2);

            g.FillRectangle(
                Brushes.Blue, 
                e.CellBounds.Location.X + 1, 
                e.CellBounds.Location.Y + 1, 
                e.CellBounds.Width - 2, 
                e.CellBounds.Height - 2);
        };
    }
}

Public Class DemoTableLayoutPanel
    Inherits TableLayoutPanel

    Protected Overrides Sub OnCellPaint( _
    ByVal e As System.Windows.Forms.TableLayoutCellPaintEventArgs)

        MyBase.OnCellPaint(e)

        Dim c As Control = Me.GetControlFromPosition(e.Column, e.Row)

        If c IsNot Nothing Then
            Dim g As Graphics = e.Graphics

            g.DrawRectangle( _
            Pens.Red, _
            e.CellBounds.Location.X + 1, _
            e.CellBounds.Location.Y + 1, _
            e.CellBounds.Width - 2, _
            e.CellBounds.Height - 2)

            g.FillRectangle( _
            Brushes.Blue, _
            e.CellBounds.Location.X + 1, _
            e.CellBounds.Location.Y + 1, _
            e.CellBounds.Width - 2, _
            e.CellBounds.Height - 2)
        End If

    End Sub

End Class

備註

當您建立 TableLayoutCellPaintEventHandler 委派時，會識別處理事件的方法。 若要使事件與您的事件處理常式產生關聯，請將委派的執行個體 (Instance) 加入至事件。 除非您移除委派，否則每當事件發生時就會呼叫事件處理常式。 如需事件處理常式委派的詳細資訊，請參閱 處理和引發事件。

擴充方法

適用於

另請參閱

• TableLayoutPanel
• TableLayoutCellPaintEventArgs