如何：将对象绑定到 Windows 窗体 DataGridView 控件
下面的代码示例演示如何将一个对象集合绑定到 DataGridView 控件，以使每个对象显示为单独的一行。 此示例还演示了如何在 DataGridViewComboBoxColumn 中显示具有枚举类型的属性，以使该组合框下拉列表包含枚举值。
示例
Imports System.Windows.Forms
Imports System.Collections.Generic
Public Enum Title
King
Sir
End Enum
Public Class EnumsAndComboBox
Inherits Form
Private flow As New FlowLayoutPanel()
Private WithEvents checkForChange As Button = New Button()
Private knights As List(Of Knight)
Private dataGridView1 As New DataGridView()
Public Sub New()
MyBase.New()
SetupForm()
SetupGrid()
End Sub
Private Sub SetupForm()
AutoSize = True
End Sub
Private Sub SetupGrid()
knights = New List(Of Knight)
knights.Add(New Knight(Title.King, "Uther", True))
knights.Add(New Knight(Title.King, "Arthur", True))
knights.Add(New Knight(Title.Sir, "Mordred", False))
knights.Add(New Knight(Title.Sir, "Gawain", True))
knights.Add(New Knight(Title.Sir, "Galahad", True))
' Initialize the DataGridView.
dataGridView1.AutoGenerateColumns = False
dataGridView1.AutoSize = True
dataGridView1.DataSource = knights
dataGridView1.Columns.Add(CreateComboBoxWithEnums())
' Initialize and add a text box column.
Dim column As DataGridViewColumn = _
New DataGridViewTextBoxColumn()
column.DataPropertyName = "Name"
column.Name = "Knight"
dataGridView1.Columns.Add(column)
' Initialize and add a check box column.
column = New DataGridViewCheckBoxColumn()
column.DataPropertyName = "GoodGuy"
column.Name = "Good"
dataGridView1.Columns.Add(column)
' Initialize the form.
Controls.Add(dataGridView1)
Me.AutoSize = True
Me.Text = "DataGridView object binding demo"
End Sub
Private Function CreateComboBoxWithEnums() As DataGridViewComboBoxColumn
Dim combo As New DataGridViewComboBoxColumn()
combo.DataSource = [Enum].GetValues(GetType(Title))
combo.DataPropertyName = "Title"
combo.Name = "Title"
Return combo
End Function
#Region "business object"
Private Class Knight
Private hisName As String
Private good As Boolean
Private hisTitle As Title
Public Sub New(ByVal title As Title, ByVal name As String, _
ByVal good As Boolean)
hisTitle = title
hisName = name
Me.good = good
End Sub
Public Property Name() As String
Get
Return hisName
End Get
Set(ByVal Value As String)
hisName = Value
End Set
End Property
Public Property GoodGuy() As Boolean
Get
Return good
End Get
Set(ByVal Value As Boolean)
good = Value
End Set
End Property
Public Property Title() As Title
Get
Return hisTitle
End Get
Set(ByVal Value As Title)
hisTitle = Value
End Set
End Property
End Class
#End Region
Public Shared Sub Main()
Application.Run(New EnumsAndComboBox())
End Sub
End Class
using System;
using System.Windows.Forms;
public enum Title
{
King,
Sir
};
public class EnumsAndComboBox : Form
{
private DataGridView dataGridView1 = new DataGridView();
private BindingSource bindingSource1 = new BindingSource();
public EnumsAndComboBox()
{
this.Load += new System.EventHandler(EnumsAndComboBox_Load);
}
private void EnumsAndComboBox_Load(object sender, System.EventArgs e)
{
// Populate the data source.
bindingSource1.Add(new Knight(Title.King, "Uther", true));
bindingSource1.Add(new Knight(Title.King, "Arthur", true));
bindingSource1.Add(new Knight(Title.Sir, "Mordred", false));
bindingSource1.Add(new Knight(Title.Sir, "Gawain", true));
bindingSource1.Add(new Knight(Title.Sir, "Galahad", true));
// Initialize the DataGridView.
dataGridView1.AutoGenerateColumns = false;
dataGridView1.AutoSize = true;
dataGridView1.DataSource = bindingSource1;
dataGridView1.Columns.Add(CreateComboBoxWithEnums());
// Initialize and add a text box column.
DataGridViewColumn column = new DataGridViewTextBoxColumn();
column.DataPropertyName = "Name";
column.Name = "Knight";
dataGridView1.Columns.Add(column);
// Initialize and add a check box column.
column = new DataGridViewCheckBoxColumn();
column.DataPropertyName = "GoodGuy";
column.Name = "Good";
dataGridView1.Columns.Add(column);
// Initialize the form.
this.Controls.Add(dataGridView1);
this.AutoSize = true;
this.Text = "DataGridView object binding demo";
}
DataGridViewComboBoxColumn CreateComboBoxWithEnums()
{
DataGridViewComboBoxColumn combo = new DataGridViewComboBoxColumn();
combo.DataSource = Enum.GetValues(typeof(Title));
combo.DataPropertyName = "Title";
combo.Name = "Title";
return combo;
}
#region "business object"
private class Knight
{
private string hisName;
private bool good;
private Title hisTitle;
public Knight(Title title, string name, bool good)
{
hisTitle = title;
hisName = name;
this.good = good;
}
public Knight()
{
hisTitle = Title.Sir;
hisName = "<enter name>";
good = true;
}
public string Name
{
get
{
return hisName;
}
set
{
hisName = value;
}
}
public bool GoodGuy
{
get
{
return good;
}
set
{
good = value;
}
}
public Title Title
{
get
{
return hisTitle;
}
set
{
hisTitle = value;
}
}
}
#endregion
[STAThread]
public static void Main()
{
Application.Run(new EnumsAndComboBox());
}
}
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) 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.
请参见
任务
如何：访问绑定到 Windows 窗体 DataGridView 行的对象