LineShape 类

项目
09/04/2008

更新：2007 年 11 月

表示显示为横线、竖线或对角线的控件。

命名空间： Microsoft.VisualBasic.PowerPacks
程序集： Microsoft.VisualBasic.PowerPacks.Vs（在 Microsoft.VisualBasic.PowerPacks.Vs.dll 中）

语法

声明
<ToolboxBitmapAttribute(GetType(LineShape), "Microsoft.VisualBasic.PowerPacks.LineShape.bmp")> _
Public Class LineShape _
    Inherits Shape
用法
Dim instance As LineShape

[ToolboxBitmapAttribute(typeof(LineShape), "Microsoft.VisualBasic.PowerPacks.LineShape.bmp")]
public class LineShape : Shape

[ToolboxBitmapAttribute(typeof(LineShape), L"Microsoft.VisualBasic.PowerPacks.LineShape.bmp")]
public ref class LineShape : public Shape

public class LineShape extends Shape

备注

使用 LineShape 控件可在设计时或运行时在窗体或容器上绘制直线。

将 Line 或 Shape 控件添加到窗体或容器上后，将随即创建一个不可见的 ShapeContainer 对象。ShapeContainer 充当每个容器控件中各个形状的绘图图面；每个 ShapeContainer 均有一个对应的 ShapeCollection，使您可以循环访问 Line 和 Shape 控件。

在运行时创建 LineShape 控件时，还必须创建一个 ShapeContainer 并将 LineShape 的 Parent 属性设置为 ShapeContainer。

示例

下面的示例将创建一个 ShapeContainer 和一个 LineShape，将它们添加到窗体中，并从窗体顶部到底部显示一条竖线。

Dim canvas As New Microsoft.VisualBasic.PowerPacks.ShapeContainer
Dim line1 As New Microsoft.VisualBasic.PowerPacks.LineShape
' Set the form as the parent of the ShapeContainer.
canvas.Parent = Me
' Set the ShapeContainer as the parent of the LineShape.
line1.Parent = canvas
' Set the starting and ending coordinates for the line.
line1.StartPoint = New System.Drawing.Point(Me.Width / 2, 0)
line1.EndPoint = New System.Drawing.Point(Me.Width / 2, Me.Height)

Microsoft.VisualBasic.PowerPacks.ShapeContainer canvas = 
    new Microsoft.VisualBasic.PowerPacks.ShapeContainer();
Microsoft.VisualBasic.PowerPacks.LineShape line1 = 
    new Microsoft.VisualBasic.PowerPacks.LineShape();
// Set the form as the parent of the ShapeContainer.
canvas.Parent = this;
// Set the ShapeContainer as the parent of the LineShape.
line1.Parent = canvas;
// Set the starting and ending coordinates for the line.
line1.StartPoint = new System.Drawing.Point(this.Width / 2, 0);
line1.EndPoint = new System.Drawing.Point(this.Width / 2, this.Height);