如何:在 FlowLayoutPanel 控件中锚定和停靠子控件
FlowLayoutPanel 控件支持其子控件中的 Anchor 和 Dock 属性。
在 FlowLayoutPanel 控件中锚定和停靠子控件
在您的窗体中创建一个 FlowLayoutPanel 控件。
将 FlowLayoutPanel 控件的 Width 设置为 300,并且将其 FlowDirection 设置为 TopDown。
创建两个 Button 控件,并将它们置于 FlowLayoutPanel 控件中。
将第一个按钮的 Width 设置为 200。
-
提示
第二个按钮采用与第一个按钮相同的宽度。 这个宽度不超过 FlowLayoutPanel 控件的宽度。
将第二个按钮的 Dock 属性设置为 None。 这将使该按钮采用其原始宽度。
将第二个按钮的 Anchor 属性设置为 Left, Right。
重要事项 第二个按钮采用与第一个按钮相同的宽度。 这个宽度不超过 FlowLayoutPanel 控件的宽度。 在 FlowLayoutPanel 控件中进行锚定和停靠的通用规则是:对于垂直流方向,FlowLayoutPanel 控件根据隐含列中最宽的子控件计算隐含列的宽度。 此列中具有 Anchor 或 Dock 属性的所有其他控件都要进行对齐或拉伸操作以适合此隐含列。 水平流方向的行为方式与垂直流类似。 FlowLayoutPanel 控件根据隐含行中最高的子控件计算隐含行的高度,此行中所有停靠的或锚定的子控件都要进行对齐或调整大小操作以适合此隐含行。
示例
下图显示了四个按钮,它们相对于 FlowLayoutPanel 中的蓝色按钮进行锚定和停靠。 FlowDirection 为 LeftToRight。
下图显示了四个按钮,它们相对于 FlowLayoutPanel 中的蓝色按钮进行锚定和停靠。 FlowDirection 为 TopDown.
下面的代码示例演示了 FlowLayoutPanel 控件中的 Button 控件的各种 Anchor 属性值。
Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Windows.Forms
Public Class Form1
Inherits Form
Public Sub New()
InitializeComponent()
End Sub 'New
Private flowLayoutPanel3 As FlowLayoutPanel
Private label2 As Label
Private button11 As Button
Private button12 As Button
Private button13 As Button
Private button14 As Button
Private button15 As Button
Private flowLayoutPanel1 As FlowLayoutPanel
Private label1 As Label
Private button1 As Button
Private button2 As Button
Private button3 As Button
Private button4 As Button
Private button5 As Button
Private components As System.ComponentModel.IContainer = Nothing
Protected Overrides Sub Dispose(disposing As Boolean)
If disposing AndAlso (components IsNot Nothing) Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub 'Dispose
Private Sub InitializeComponent()
Me.flowLayoutPanel3 = New System.Windows.Forms.FlowLayoutPanel()
Me.label2 = New System.Windows.Forms.Label()
Me.button11 = New System.Windows.Forms.Button()
Me.button12 = New System.Windows.Forms.Button()
Me.button13 = New System.Windows.Forms.Button()
Me.button14 = New System.Windows.Forms.Button()
Me.button15 = New System.Windows.Forms.Button()
Me.flowLayoutPanel1 = New System.Windows.Forms.FlowLayoutPanel()
Me.label1 = New System.Windows.Forms.Label()
Me.button1 = New System.Windows.Forms.Button()
Me.button2 = New System.Windows.Forms.Button()
Me.button3 = New System.Windows.Forms.Button()
Me.button4 = New System.Windows.Forms.Button()
Me.button5 = New System.Windows.Forms.Button()
Me.flowLayoutPanel3.SuspendLayout()
Me.flowLayoutPanel1.SuspendLayout()
Me.SuspendLayout()
'
' flowLayoutPanel3
'
Me.flowLayoutPanel3.Anchor = CType(System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right, System.Windows.Forms.AnchorStyles)
Me.flowLayoutPanel3.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.flowLayoutPanel3.Controls.Add(Me.label2)
Me.flowLayoutPanel3.Controls.Add(Me.button11)
Me.flowLayoutPanel3.Controls.Add(Me.button12)
Me.flowLayoutPanel3.Controls.Add(Me.button13)
Me.flowLayoutPanel3.Controls.Add(Me.button14)
Me.flowLayoutPanel3.Controls.Add(Me.button15)
Me.flowLayoutPanel3.Location = New System.Drawing.Point(12, 12)
Me.flowLayoutPanel3.Name = "flowLayoutPanel3"
Me.flowLayoutPanel3.Size = New System.Drawing.Size(631, 100)
Me.flowLayoutPanel3.TabIndex = 2
'
' label2
'
Me.label2.Anchor = System.Windows.Forms.AnchorStyles.None
Me.label2.AutoSize = True
Me.label2.Location = New System.Drawing.Point(3, 28)
Me.label2.Name = "label2"
Me.label2.Size = New System.Drawing.Size(138, 14)
Me.label2.TabIndex = 10
Me.label2.Text = "FlowDirection=LeftToRight"
'
' button11
'
Me.button11.Anchor = System.Windows.Forms.AnchorStyles.Bottom
Me.button11.AutoSize = True
Me.button11.Location = New System.Drawing.Point(147, 44)
Me.button11.Name = "button11"
Me.button11.Size = New System.Drawing.Size(86, 23)
Me.button11.TabIndex = 5
Me.button11.Text = "Anchor=Bottom"
'
' button12
'
Me.button12.Anchor = CType(System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom, System.Windows.Forms.AnchorStyles)
Me.button12.AutoSize = True
Me.button12.Location = New System.Drawing.Point(239, 3)
Me.button12.Name = "button12"
Me.button12.Size = New System.Drawing.Size(111, 64)
Me.button12.TabIndex = 6
Me.button12.Text = "Anchor=Top, Bottom"
'
' button13
'
Me.button13.Anchor = System.Windows.Forms.AnchorStyles.None
Me.button13.BackColor = System.Drawing.SystemColors.GradientActiveCaption
Me.button13.Location = New System.Drawing.Point(356, 3)
Me.button13.Name = "button13"
Me.button13.Size = New System.Drawing.Size(75, 64)
Me.button13.TabIndex = 7
'
' button14
'
Me.button14.Dock = System.Windows.Forms.DockStyle.Bottom
Me.button14.Location = New System.Drawing.Point(437, 44)
Me.button14.Name = "button14"
Me.button14.TabIndex = 8
Me.button14.Text = "Dock=Bottom"
'
' button15
'
Me.button15.Dock = System.Windows.Forms.DockStyle.Fill
Me.button15.Location = New System.Drawing.Point(518, 3)
Me.button15.Name = "button15"
Me.button15.Size = New System.Drawing.Size(75, 64)
Me.button15.TabIndex = 9
Me.button15.Text = "Dock=Fill"
'
' flowLayoutPanel1
'
Me.flowLayoutPanel1.Anchor = CType(System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right, System.Windows.Forms.AnchorStyles)
Me.flowLayoutPanel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.flowLayoutPanel1.Controls.Add(Me.label1)
Me.flowLayoutPanel1.Controls.Add(Me.button1)
Me.flowLayoutPanel1.Controls.Add(Me.button2)
Me.flowLayoutPanel1.Controls.Add(Me.button3)
Me.flowLayoutPanel1.Controls.Add(Me.button4)
Me.flowLayoutPanel1.Controls.Add(Me.button5)
Me.flowLayoutPanel1.FlowDirection = System.Windows.Forms.FlowDirection.TopDown
Me.flowLayoutPanel1.Location = New System.Drawing.Point(12, 118)
Me.flowLayoutPanel1.Name = "flowLayoutPanel1"
Me.flowLayoutPanel1.Size = New System.Drawing.Size(200, 209)
Me.flowLayoutPanel1.TabIndex = 3
'
' label1
'
Me.label1.AutoSize = True
Me.label1.Location = New System.Drawing.Point(3, 3)
Me.label1.Name = "label1"
Me.label1.Size = New System.Drawing.Size(128, 14)
Me.label1.TabIndex = 11
Me.label1.Text = "FlowDirection=TopDown"
'
' button1
'
Me.button1.Anchor = System.Windows.Forms.AnchorStyles.Right
Me.button1.Location = New System.Drawing.Point(74, 23)
Me.button1.Name = "button1"
Me.button1.TabIndex = 5
Me.button1.Text = "Anchor=Right"
'
' button2
'
Me.button2.Anchor = CType(System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right, System.Windows.Forms.AnchorStyles)
Me.button2.Location = New System.Drawing.Point(3, 52)
Me.button2.Name = "button2"
Me.button2.Size = New System.Drawing.Size(146, 23)
Me.button2.TabIndex = 6
Me.button2.Text = "Anchor=Left, Right"
'
' button3
'
Me.button3.BackColor = System.Drawing.SystemColors.GradientActiveCaption
Me.button3.Location = New System.Drawing.Point(3, 81)
Me.button3.Name = "button3"
Me.button3.Size = New System.Drawing.Size(146, 23)
Me.button3.TabIndex = 7
'
' button4
'
Me.button4.Dock = System.Windows.Forms.DockStyle.Right
Me.button4.Location = New System.Drawing.Point(74, 110)
Me.button4.Name = "button4"
Me.button4.TabIndex = 8
Me.button4.Text = "Dock=Right"
'
' button5
'
Me.button5.Dock = System.Windows.Forms.DockStyle.Fill
Me.button5.Location = New System.Drawing.Point(3, 139)
Me.button5.Name = "button5"
Me.button5.Size = New System.Drawing.Size(146, 23)
Me.button5.TabIndex = 9
Me.button5.Text = "Dock=Fill"
'
' Form1
'
Me.ClientSize = New System.Drawing.Size(658, 341)
Me.Controls.Add(flowLayoutPanel1)
Me.Controls.Add(flowLayoutPanel3)
Me.Name = "Form1"
Me.Text = "Form1"
Me.flowLayoutPanel3.ResumeLayout(False)
Me.flowLayoutPanel3.PerformLayout()
Me.flowLayoutPanel1.ResumeLayout(False)
Me.flowLayoutPanel1.PerformLayout()
Me.ResumeLayout(False)
End Sub 'InitializeComponent
<STAThread()> _
Shared Sub Main()
Application.EnableVisualStyles()
Application.Run(New Form1())
End Sub 'Main
End Class 'Form1
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
public class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private FlowLayoutPanel flowLayoutPanel3;
private Label label2;
private Button button11;
private Button button12;
private Button button13;
private Button button14;
private Button button15;
private FlowLayoutPanel flowLayoutPanel1;
private Label label1;
private Button button1;
private Button button2;
private Button button3;
private Button button4;
private Button button5;
private System.ComponentModel.IContainer components = null;
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.flowLayoutPanel3 = new System.Windows.Forms.FlowLayoutPanel();
this.label2 = new System.Windows.Forms.Label();
this.button11 = new System.Windows.Forms.Button();
this.button12 = new System.Windows.Forms.Button();
this.button13 = new System.Windows.Forms.Button();
this.button14 = new System.Windows.Forms.Button();
this.button15 = new System.Windows.Forms.Button();
this.flowLayoutPanel1 = new System.Windows.Forms.FlowLayoutPanel();
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.flowLayoutPanel3.SuspendLayout();
this.flowLayoutPanel1.SuspendLayout();
this.SuspendLayout();
//
// flowLayoutPanel3
//
this.flowLayoutPanel3.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.flowLayoutPanel3.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.flowLayoutPanel3.Controls.Add(this.label2);
this.flowLayoutPanel3.Controls.Add(this.button11);
this.flowLayoutPanel3.Controls.Add(this.button12);
this.flowLayoutPanel3.Controls.Add(this.button13);
this.flowLayoutPanel3.Controls.Add(this.button14);
this.flowLayoutPanel3.Controls.Add(this.button15);
this.flowLayoutPanel3.Location = new System.Drawing.Point(12, 12);
this.flowLayoutPanel3.Name = "flowLayoutPanel3";
this.flowLayoutPanel3.Size = new System.Drawing.Size(631, 100);
this.flowLayoutPanel3.TabIndex = 2;
//
// label2
//
this.label2.Anchor = System.Windows.Forms.AnchorStyles.None;
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(3, 28);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(138, 14);
this.label2.TabIndex = 10;
this.label2.Text = "FlowDirection=LeftToRight";
//
// button11
//
this.button11.Anchor = System.Windows.Forms.AnchorStyles.Bottom;
this.button11.AutoSize = true;
this.button11.Location = new System.Drawing.Point(147, 44);
this.button11.Name = "button11";
this.button11.Size = new System.Drawing.Size(86, 23);
this.button11.TabIndex = 5;
this.button11.Text = "Anchor=Bottom";
//
// button12
//
this.button12.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)));
this.button12.AutoSize = true;
this.button12.Location = new System.Drawing.Point(239, 3);
this.button12.Name = "button12";
this.button12.Size = new System.Drawing.Size(111, 64);
this.button12.TabIndex = 6;
this.button12.Text = "Anchor=Top, Bottom";
//
// button13
//
this.button13.Anchor = System.Windows.Forms.AnchorStyles.None;
this.button13.BackColor = System.Drawing.SystemColors.GradientActiveCaption;
this.button13.Location = new System.Drawing.Point(356, 3);
this.button13.Name = "button13";
this.button13.Size = new System.Drawing.Size(75, 64);
this.button13.TabIndex = 7;
//
// button14
//
this.button14.Dock = System.Windows.Forms.DockStyle.Bottom;
this.button14.Location = new System.Drawing.Point(437, 44);
this.button14.Name = "button14";
this.button14.TabIndex = 8;
this.button14.Text = "Dock=Bottom";
//
// button15
//
this.button15.Dock = System.Windows.Forms.DockStyle.Fill;
this.button15.Location = new System.Drawing.Point(518, 3);
this.button15.Name = "button15";
this.button15.Size = new System.Drawing.Size(75, 64);
this.button15.TabIndex = 9;
this.button15.Text = "Dock=Fill";
//
// flowLayoutPanel1
//
this.flowLayoutPanel1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.flowLayoutPanel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.flowLayoutPanel1.Controls.Add(this.label1);
this.flowLayoutPanel1.Controls.Add(this.button1);
this.flowLayoutPanel1.Controls.Add(this.button2);
this.flowLayoutPanel1.Controls.Add(this.button3);
this.flowLayoutPanel1.Controls.Add(this.button4);
this.flowLayoutPanel1.Controls.Add(this.button5);
this.flowLayoutPanel1.FlowDirection = System.Windows.Forms.FlowDirection.TopDown;
this.flowLayoutPanel1.Location = new System.Drawing.Point(12, 118);
this.flowLayoutPanel1.Name = "flowLayoutPanel1";
this.flowLayoutPanel1.Size = new System.Drawing.Size(200, 209);
this.flowLayoutPanel1.TabIndex = 3;
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(3, 3);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(128, 14);
this.label1.TabIndex = 11;
this.label1.Text = "FlowDirection=TopDown";
//
// button1
//
this.button1.Anchor = System.Windows.Forms.AnchorStyles.Right;
this.button1.Location = new System.Drawing.Point(74, 23);
this.button1.Name = "button1";
this.button1.TabIndex = 5;
this.button1.Text = "Anchor=Right";
//
// button2
//
this.button2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
this.button2.Location = new System.Drawing.Point(3, 52);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(146, 23);
this.button2.TabIndex = 6;
this.button2.Text = "Anchor=Left, Right";
//
// button3
//
this.button3.BackColor = System.Drawing.SystemColors.GradientActiveCaption;
this.button3.Location = new System.Drawing.Point(3, 81);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(146, 23);
this.button3.TabIndex = 7;
//
// button4
//
this.button4.Dock = System.Windows.Forms.DockStyle.Right;
this.button4.Location = new System.Drawing.Point(74, 110);
this.button4.Name = "button4";
this.button4.TabIndex = 8;
this.button4.Text = "Dock=Right";
//
// button5
//
this.button5.Dock = System.Windows.Forms.DockStyle.Fill;
this.button5.Location = new System.Drawing.Point(3, 139);
this.button5.Name = "button5";
this.button5.Size = new System.Drawing.Size(146, 23);
this.button5.TabIndex = 9;
this.button5.Text = "Dock=Fill";
//
// Form1
//
this.ClientSize = new System.Drawing.Size(658, 341);
this.Controls.Add(this.flowLayoutPanel1);
this.Controls.Add(this.flowLayoutPanel3);
this.Name = "Form1";
this.Text = "Form1";
this.flowLayoutPanel3.ResumeLayout(false);
this.flowLayoutPanel3.PerformLayout();
this.flowLayoutPanel1.ResumeLayout(false);
this.flowLayoutPanel1.PerformLayout();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.Run(new Form1());
}
}
编译代码
此示例需要:
- 对 System、System.Data、System.Drawing 和 System.Windows.Forms 程序集的引用。
有关从 Visual Basic 或 Visual C# 的命令行生成此示例的信息,请参见从命令行生成 (Visual Basic) 或在命令行上使用 csc.exe 生成。 也可以通过将代码粘贴到新项目,在 Visual Studio 中生成此示例。 有关更多信息,请参见 如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例.