TableLayoutCellPaintEventHandler TableLayoutCellPaintEventHandler TableLayoutCellPaintEventHandler TableLayoutCellPaintEventHandler Delegate

定义

表示用来处理 CellPaint 事件的方法。Represents the method that will handle the CellPaint event.

public delegate void TableLayoutCellPaintEventHandler(System::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)

参数

sender
Object Object Object Object

事件源。The source of the event.

继承
TableLayoutCellPaintEventHandlerTableLayoutCellPaintEventHandlerTableLayoutCellPaintEventHandlerTableLayoutCellPaintEventHandler

示例

下面的示例演示如何TableLayoutCellPaintEventHandler委托的外观进行自定义TableLayoutPanel控件。The following example shows how to a TableLayoutCellPaintEventHandler delegate to customize the appearance of a TableLayoutPanel control. 此代码示例是为提供一个更大示例的一部分TableLayoutPanel控件。This code example is part of a larger example provided for the TableLayoutPanel control.

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

注解

当你创建TableLayoutCellPaintEventHandler委托时,标识一个方法来处理该事件。When you create a TableLayoutCellPaintEventHandler delegate, you identify a method to handle the event. 若要将事件与事件处理程序关联,请将该委托的一个实例添加到事件中。To associate the event with your event handler, add an instance of the delegate to the event. 除非移除了该委托,否则每当发生该事件时就会调用事件处理程序。The event handler is called whenever the event occurs, unless you remove the delegate. 有关事件处理程序委托的详细信息,请参阅处理和引发事件For more information about event handler delegates, see Handling and Raising Events.

扩展方法

GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate)

获取指示指定委托表示的方法的对象。Gets an object that represents the method represented by the specified delegate.

适用于

另请参阅