如何:设置 Windows 窗体 DataGridView 控件的大小调整模式

下面的过程演示一些常见方案,用于自定义或组合 DataGridView 控件及控件中的特定列可用的大小调整选项。

创建具有固定宽度的列

  • AutoSizeMode 属性设置为 NoneResizable 属性设置为 FalseReadOnly 属性设置为 true,并将 Width 属性设置为适当的值。

    Dim idColumn As New DataGridViewTextBoxColumn()
    idColumn.HeaderText = "ID"
    idColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.None
    idColumn.Resizable = DataGridViewTriState.False
    idColumn.ReadOnly = True
    idColumn.Width = 20
    
    DataGridViewTextBoxColumn idColumn =
        new DataGridViewTextBoxColumn();
    idColumn.HeaderText = "ID";
    idColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
    idColumn.Resizable = DataGridViewTriState.False;
    idColumn.ReadOnly = true;
    idColumn.Width = 20;
    

创建可调整大小以适应其内容的列

  • AutoSizeMode 属性设置为基于内容的大小调整模式。

    Dim titleColumn As New DataGridViewTextBoxColumn()
    titleColumn.HeaderText = "Title"
    titleColumn.AutoSizeMode = _
        DataGridViewAutoSizeColumnMode.AllCellsExceptHeader
    
    DataGridViewTextBoxColumn titleColumn =
        new DataGridViewTextBoxColumn();
    titleColumn.HeaderText = "Title";
    titleColumn.AutoSizeMode =
        DataGridViewAutoSizeColumnMode.AllCellsExceptHeader;
    

为具有不同的大小和重要性的值创建填充模式列

  • DataGridView.AutoSizeColumnsMode 属性设置为 Fill,以便为不重写此值的所有列设置大小调整模式。 将这些列的 FillWeight 属性设置为与内容的平均宽度成一定比例的值。 设置重要列的 MinimumWidth 属性以确保显示部分内容。

    dataGridView1.AutoSizeColumnsMode = _
        DataGridViewAutoSizeColumnsMode.Fill
    
    Dim subTitleColumn As new DataGridViewTextBoxColumn()
    subTitleColumn.HeaderText = "Subtitle"
    subTitleColumn.MinimumWidth = 50
    subTitleColumn.FillWeight = 100
    
    Dim summaryColumn As new DataGridViewTextBoxColumn()
    summaryColumn.HeaderText = "Summary"
    summaryColumn.MinimumWidth = 50
    summaryColumn.FillWeight = 200
    
    Dim contentColumn As new DataGridViewTextBoxColumn()
    contentColumn.HeaderText = "Content"
    contentColumn.MinimumWidth = 50
    contentColumn.FillWeight = 300
    
    dataGridView1.AutoSizeColumnsMode =
        DataGridViewAutoSizeColumnsMode.Fill;
    
    DataGridViewTextBoxColumn subTitleColumn =
        new DataGridViewTextBoxColumn();
    subTitleColumn.HeaderText = "Subtitle";
    subTitleColumn.MinimumWidth = 50;
    subTitleColumn.FillWeight = 100;
    
    DataGridViewTextBoxColumn summaryColumn =
        new DataGridViewTextBoxColumn();
    summaryColumn.HeaderText = "Summary";
    summaryColumn.MinimumWidth = 50;
    summaryColumn.FillWeight = 200;
    
    DataGridViewTextBoxColumn contentColumn =
        new DataGridViewTextBoxColumn();
    contentColumn.HeaderText = "Content";
    contentColumn.MinimumWidth = 50;
    contentColumn.FillWeight = 300;
    

示例

下面的完整代码示例提供了一个演示应用程序,可帮助您了解本主题中介绍的大小调整选项。

Imports System
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms

Public Class Form1
    Inherits Form

    <STAThreadAttribute()> _
    Public Shared Sub Main()
        Application.Run(New Form1())
    End Sub

    Private dataGridView1 As New DataGridView()

    Public Sub New()
        dataGridView1.Dock = DockStyle.Fill
        Controls.Add(dataGridView1)
        Width *= 2
        Text = "DataGridView Sizing Scenarios"
    End Sub

    Protected Overrides Sub OnLoad(ByVal e As System.EventArgs)

        Dim idColumn As New DataGridViewTextBoxColumn()
        idColumn.HeaderText = "ID"
        idColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.None
        idColumn.Resizable = DataGridViewTriState.False
        idColumn.ReadOnly = True
        idColumn.Width = 20

        Dim titleColumn As New DataGridViewTextBoxColumn()
        titleColumn.HeaderText = "Title"
        titleColumn.AutoSizeMode = _
            DataGridViewAutoSizeColumnMode.AllCellsExceptHeader

        dataGridView1.AutoSizeColumnsMode = _
            DataGridViewAutoSizeColumnsMode.Fill

        Dim subTitleColumn As new DataGridViewTextBoxColumn()
        subTitleColumn.HeaderText = "Subtitle"
        subTitleColumn.MinimumWidth = 50
        subTitleColumn.FillWeight = 100

        Dim summaryColumn As new DataGridViewTextBoxColumn()
        summaryColumn.HeaderText = "Summary"
        summaryColumn.MinimumWidth = 50
        summaryColumn.FillWeight = 200

        Dim contentColumn As new DataGridViewTextBoxColumn()
        contentColumn.HeaderText = "Content"
        contentColumn.MinimumWidth = 50
        contentColumn.FillWeight = 300

        dataGridView1.Columns.AddRange(New DataGridViewTextBoxColumn() { _
            idColumn, titleColumn, subTitleColumn, _
            summaryColumn, contentColumn})
        dataGridView1.Rows.Add(New String() {"1", _
            "A Short Title", "A Longer SubTitle", _
            "A short description of the main point.", _
            "The full contents of the topic, with detailed examples."})

        MyBase.OnLoad(e)
    End Sub
End Class
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form
{
    [STAThreadAttribute()]
    public static void Main()
    {
        Application.Run(new Form1());
    }

    private DataGridView dataGridView1 = new DataGridView();

    public Form1()
    {
        dataGridView1.Dock = DockStyle.Fill;
        Controls.Add(dataGridView1);
        Width *= 2;
        Text = "DataGridView Sizing Scenarios";
    }

    protected override void OnLoad(EventArgs e)
    {
        DataGridViewTextBoxColumn idColumn =
            new DataGridViewTextBoxColumn();
        idColumn.HeaderText = "ID";
        idColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.None;
        idColumn.Resizable = DataGridViewTriState.False;
        idColumn.ReadOnly = true;
        idColumn.Width = 20;

        DataGridViewTextBoxColumn titleColumn =
            new DataGridViewTextBoxColumn();
        titleColumn.HeaderText = "Title";
        titleColumn.AutoSizeMode =
            DataGridViewAutoSizeColumnMode.AllCellsExceptHeader;

        dataGridView1.AutoSizeColumnsMode =
            DataGridViewAutoSizeColumnsMode.Fill;

        DataGridViewTextBoxColumn subTitleColumn =
            new DataGridViewTextBoxColumn();
        subTitleColumn.HeaderText = "Subtitle";
        subTitleColumn.MinimumWidth = 50;
        subTitleColumn.FillWeight = 100;

        DataGridViewTextBoxColumn summaryColumn =
            new DataGridViewTextBoxColumn();
        summaryColumn.HeaderText = "Summary";
        summaryColumn.MinimumWidth = 50;
        summaryColumn.FillWeight = 200;

        DataGridViewTextBoxColumn contentColumn =
            new DataGridViewTextBoxColumn();
        contentColumn.HeaderText = "Content";
        contentColumn.MinimumWidth = 50;
        contentColumn.FillWeight = 300;

        dataGridView1.Columns.AddRange(new DataGridViewTextBoxColumn[] { 
            idColumn, titleColumn, subTitleColumn, 
            summaryColumn, contentColumn });
        dataGridView1.Rows.Add(new String[] { "1", 
            "A Short Title", "A Longer SubTitle", 
            "A short description of the main point.", 
            "The full contents of the topic, with detailed examples." });

        base.OnLoad(e);
    }
}

若要使用此演示应用程序,请执行下列操作:

  • 更改窗体的大小。 观察填充模式列如何在更改宽度的同时保持 FillWeight 属性值所指示的比例。 观察列的 MinimumWidth 如何在窗体太小的时候阻止对列进行更改。

  • 通过用鼠标拖动列分隔符,更改列的大小。 观察为何有些列不能调整大小,为何可调整大小的列不能调整为窄于其最小宽度。

编译代码

此示例需要:

  • 对 System 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)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 窗体代码示例如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例如何:使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例.

请参见

参考

DataGridView

DataGridViewColumn.AutoSizeMode

DataGridViewAutoSizeColumnMode

DataGridViewColumn.Resizable

DataGridViewColumn.ReadOnly

DataGridViewColumn.Width

DataGridViewColumn.FillWeight

DataGridViewColumn.MinimumWidth