DataGridColumnStyle 类
指定 System.Windows.Forms.DataGrid 控件列的外观、文本格式和行为。该类为抽象类。
**命名空间:**System.Windows.Forms
**程序集:**System.Windows.Forms（在 system.windows.forms.dll 中）
语法
声明
Public MustInherit Class DataGridColumnStyle
Inherits Component
Implements IDataGridColumnStyleEditingNotificationService
用法
Dim instance As DataGridColumnStyle
public abstract class DataGridColumnStyle : Component, IDataGridColumnStyleEditingNotificationService
public ref class DataGridColumnStyle abstract : public Component, IDataGridColumnStyleEditingNotificationService
public abstract class DataGridColumnStyle extends Component implements IDataGridColumnStyleEditingNotificationService
public abstract class DataGridColumnStyle extends Component implements IDataGridColumnStyleEditingNotificationService
备注
DataGridColumnStyle 对象的集合（GridColumnStylesCollection）可以通过 System.Windows.Forms.DataGrid 控件的 TableStyles 属性访问。
将 DataSource 属性设置为适当的数据源后，System.Windows.Forms.DataGrid 控件将自动创建 DataGridColumnStyle 对象的集合。实际创建的对象是从 DataGridColumnStyle 继承的以下两个类之一的实例：DataGridBoolColumn、DataGridTextBoxColumn。
若要格式化数据显示，请将 DataGridTextBoxColumn 类的 Format 属性设置为格式化值之一。有关有效格式化的值的更多信息，请参见 日期与时间格式字符串 和 标准数字格式字符串。
还可以创建自己的 DataGridColumnStyle 对象集并将它们添加到 GridColumnStylesCollection 中。当进行此操作时，必须将每个列样式的 MappingName 设置为一个 DataColumn 的 ColumnName，以将列的显示与实际数据同步。
警告
在向 GridTableStylesCollection 添加 DataGridTableStyle 对象之前，始终应先创建 DataGridColumnStyle 对象并将其添加到 GridColumnStylesCollection。当向集合添加具有有效的 MappingName 值的空 DataGridTableStyle 时，将自动生成 DataGridColumnStyle 对象。因此，如果试图向 GridColumnStylesCollection 添加带有重复 MappingName 值的 DataGridColumnStyle 新对象时，将引发异常。
在通过 System.Windows.Forms.DataGrid 控件实例化派生类时，所创建的类取决于与 DataGridColumnStyle 对象关联的 DataColumn 的 DataType。例如，某 DataColumn（其 DataType 设置为 System.Boolean）将与 DataGridBoolColumn 关联。若要确定任意 DataGridColumnStyle 的类型，请使用 GetType 方法。
若要创建您自己的列类，可从 DataGridColumnStyle 继承。为创建承载控件的特殊列，可能需要进行此操作，承载 TextBox 控件的 DataGridTextBox 类就说明了这一点。例如，可在列中承载 Image 控件以显示图片，或创建自己的用户控件来在列中承载。
不应将 DataGridColumnStyle 的功能与 DataColumn 的功能相混淆。DataColumn 包含适用于创建数据表架构的属性和方法，而 DataGridColumnStyle 包含与屏幕上单个列的外观相关的属性和方法。
如果某行包含 DBNull.Value，则可以使用 NullText 属性设置列中显示的文本。
DataGridColumnStyle 类还使您可以指定列在其数据更改时的行为。在对列的数据进行大量更新时，BeginUpdate 和 EndUpdate 方法将暂时挂起列的绘制。如果没有此功能，则网格中每个单元格的每次更改均会立即绘制，这可能使用户分心并对性能产生影响。
有多种方法允许在用户编辑列时对列进行监视，包括 Edit 和 Commit 事件。
该类的多数属性和方法适用于控制列的外观。但是，也有几个属性和方法（如 GetColumnValueAtRow 和 SetColumnValueAtRow）使您可以检查和更改指定单元格中的值。
给实现者的说明 从 DataGridColumnStyle 继承时，必须重写以下成员：Abort、Commit、Edit 和 Paint（两次）。
示例
下面的代码示例创建一个承载 DateTimePicker 控件的 DataGridColumnStyle。
Imports System
Imports System.Data
Imports System.Windows.Forms
Imports System.Drawing
Imports System.ComponentModel
Imports System.Security.Permissions
' This example shows how to create your own column style that
' hosts a control, in this case, a DateTimePicker.
Public Class DataGridTimePickerColumn
Inherits DataGridColumnStyle
Private customDateTimePicker1 As New CustomDateTimePicker()
' The isEditing field tracks whether or not the user is
' editing data with the hosted control.
Private isEditing As Boolean
Public Sub New()
customDateTimePicker1.Visible = False
End Sub
Protected Overrides Sub Abort(ByVal rowNum As Integer)
isEditing = False
RemoveHandler customDateTimePicker1.ValueChanged, _
AddressOf TimePickerValueChanged
Invalidate()
End Sub
Protected Overrides Function Commit _
(ByVal dataSource As CurrencyManager, ByVal rowNum As Integer) _
As Boolean
customDateTimePicker1.Bounds = Rectangle.Empty
RemoveHandler customDateTimePicker1.ValueChanged, _
AddressOf TimePickerValueChanged
If Not isEditing Then
Return True
End If
isEditing = False
Try
Dim value As DateTime = customDateTimePicker1.Value
SetColumnValueAtRow(dataSource, rowNum, value)
Catch
End Try
Invalidate()
Return True
End Function
Protected Overloads Overrides Sub Edit( _
ByVal [source] As CurrencyManager, _
ByVal rowNum As Integer, _
ByVal bounds As Rectangle, _
ByVal [readOnly] As Boolean, _
ByVal displayText As String, _
ByVal cellIsVisible As Boolean)
Dim value As DateTime = _
CType(GetColumnValueAtRow([source], rowNum), DateTime)
If cellIsVisible Then
customDateTimePicker1.Bounds = New Rectangle _
(bounds.X + 2, bounds.Y + 2, bounds.Width - 4, _
bounds.Height - 4)
customDateTimePicker1.Value = value
customDateTimePicker1.Visible = True
AddHandler customDateTimePicker1.ValueChanged, _
AddressOf TimePickerValueChanged
Else
customDateTimePicker1.Value = value
customDateTimePicker1.Visible = False
End If
If customDateTimePicker1.Visible Then
DataGridTableStyle.DataGrid.Invalidate(bounds)
End If
customDateTimePicker1.Focus()
End Sub
Protected Overrides Function GetPreferredSize( _
ByVal g As Graphics, _
ByVal value As Object) As Size
Return New Size(100, customDateTimePicker1.PreferredHeight + 4)
End Function
Protected Overrides Function GetMinimumHeight() As Integer
Return customDateTimePicker1.PreferredHeight + 4
End Function
Protected Overrides Function GetPreferredHeight( _
ByVal g As Graphics, ByVal value As Object) As Integer
Return customDateTimePicker1.PreferredHeight + 4
End Function
Protected Overloads Overrides Sub Paint( _
ByVal g As Graphics, ByVal bounds As Rectangle, _
ByVal [source] As CurrencyManager, ByVal rowNum As Integer)
Paint(g, bounds, [source], rowNum, False)
End Sub
Protected Overloads Overrides Sub Paint(ByVal g As Graphics, _
ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, _
ByVal rowNum As Integer, ByVal alignToRight As Boolean)
Paint(g, bounds, [source], rowNum, Brushes.Red, _
Brushes.Blue, alignToRight)
End Sub
Protected Overloads Overrides Sub Paint(ByVal g As Graphics, _
ByVal bounds As Rectangle, ByVal [source] As CurrencyManager, _
ByVal rowNum As Integer, ByVal backBrush As Brush, _
ByVal foreBrush As Brush, ByVal alignToRight As Boolean)
Dim [date] As DateTime = _
CType(GetColumnValueAtRow([source], rowNum), DateTime)
Dim rect As Rectangle = bounds
g.FillRectangle(backBrush, rect)
rect.Offset(0, 2)
rect.Height -= 2
g.DrawString([date].ToString("d"), _
Me.DataGridTableStyle.DataGrid.Font, foreBrush, _
RectangleF.FromLTRB(rect.X, rect.Y, rect.Right, rect.Bottom))
End Sub
Protected Overrides Sub SetDataGridInColumn(ByVal value As DataGrid)
MyBase.SetDataGridInColumn(value)
If Not (customDateTimePicker1.Parent Is Nothing) Then
customDateTimePicker1.Parent.Controls.Remove(customDateTimePicker1)
End If
If Not (value Is Nothing) Then
value.Controls.Add(customDateTimePicker1)
End If
End Sub
Private Sub TimePickerValueChanged( _
ByVal sender As Object, ByVal e As EventArgs)
' Remove the handler to prevent it from being called twice in a row.
RemoveHandler customDateTimePicker1.ValueChanged, _
AddressOf TimePickerValueChanged
Me.isEditing = True
MyBase.ColumnStartedEditing(customDateTimePicker1)
End Sub
End Class
Public Class CustomDateTimePicker
Inherits DateTimePicker
<SecurityPermissionAttribute( _
SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.UnmanagedCode)> _
Protected Overrides Function ProcessKeyMessage(ByRef m As Message) As Boolean
' Keep all the keys for the DateTimePicker.
Return ProcessKeyEventArgs(m)
End Function
End Class
Public Class MyForm
Inherits Form
Private namesDataTable As DataTable
Private myGrid As DataGrid = New DataGrid()
Public Sub New()
InitForm()
namesDataTable = New DataTable("NamesTable")
namesDataTable.Columns.Add(New DataColumn("Name"))
Dim dateColumn As DataColumn = _
New DataColumn("Date", GetType(DateTime))
dateColumn.DefaultValue = DateTime.Today
namesDataTable.Columns.Add(dateColumn)
Dim namesDataSet As DataSet = New DataSet()
namesDataSet.Tables.Add(namesDataTable)
myGrid.DataSource = namesDataSet
myGrid.DataMember = "NamesTable"
AddGridStyle()
AddData()
End Sub
Private Sub AddGridStyle()
Dim myGridStyle As DataGridTableStyle = _
New DataGridTableStyle()
myGridStyle.MappingName = "NamesTable"
Dim nameColumnStyle As DataGridTextBoxColumn = _
New DataGridTextBoxColumn()
nameColumnStyle.MappingName = "Name"
nameColumnStyle.HeaderText = "Name"
myGridStyle.GridColumnStyles.Add(nameColumnStyle)
Dim customDateTimePicker1ColumnStyle As DataGridTimePickerColumn = _
New DataGridTimePickerColumn()
customDateTimePicker1ColumnStyle.MappingName = "Date"
customDateTimePicker1ColumnStyle.HeaderText = "Date"
customDateTimePicker1ColumnStyle.Width = 100
myGridStyle.GridColumnStyles.Add(customDateTimePicker1ColumnStyle)
myGrid.TableStyles.Add(myGridStyle)
End Sub
Private Sub AddData()
Dim dRow As DataRow = namesDataTable.NewRow()
dRow("Name") = "Name 1"
dRow("Date") = New DateTime(2001, 12, 1)
namesDataTable.Rows.Add(dRow)
dRow = namesDataTable.NewRow()
dRow("Name") = "Name 2"
dRow("Date") = New DateTime(2001, 12, 4)
namesDataTable.Rows.Add(dRow)
dRow = namesDataTable.NewRow()
dRow("Name") = "Name 3"
dRow("Date") = New DateTime(2001, 12, 29)
namesDataTable.Rows.Add(dRow)
dRow = namesDataTable.NewRow()
dRow("Name") = "Name 4"
dRow("Date") = New DateTime(2001, 12, 13)
namesDataTable.Rows.Add(dRow)
dRow = namesDataTable.NewRow()
dRow("Name") = "Name 5"
dRow("Date") = New DateTime(2001, 12, 21)
namesDataTable.Rows.Add(dRow)
namesDataTable.AcceptChanges()
End Sub
Private Sub InitForm()
Me.Size = New Size(500, 500)
myGrid.Size = New Size(350, 250)
myGrid.TabStop = True
myGrid.TabIndex = 1
Me.StartPosition = FormStartPosition.CenterScreen
Me.Controls.Add(myGrid)
End Sub
<STAThread()> _
Public Shared Sub Main()
Application.Run(New MyForm())
End Sub
End Class
using System;
using System.Data;
using System.Windows.Forms;
using System.Drawing;
using System.Security.Permissions;
// This example shows how to create your own column style that
// hosts a control, in this case, a DateTimePicker.
public class DataGridTimePickerColumn : DataGridColumnStyle
{
private CustomDateTimePicker customDateTimePicker1 =
new CustomDateTimePicker();
// The isEditing field tracks whether or not the user is
// editing data with the hosted control.
private bool isEditing;
public DataGridTimePickerColumn() : base()
{
customDateTimePicker1.Visible = false;
}
protected override void Abort(int rowNum)
{
isEditing = false;
customDateTimePicker1.ValueChanged -=
new EventHandler(TimePickerValueChanged);
Invalidate();
}
protected override bool Commit
(CurrencyManager dataSource, int rowNum)
{
customDateTimePicker1.Bounds = Rectangle.Empty;
customDateTimePicker1.ValueChanged -=
new EventHandler(TimePickerValueChanged);
if (!isEditing)
return true;
isEditing = false;
try
{
DateTime value = customDateTimePicker1.Value;
SetColumnValueAtRow(dataSource, rowNum, value);
}
catch (Exception)
{
Abort(rowNum);
return false;
}
Invalidate();
return true;
}
protected override void Edit(
CurrencyManager source,
int rowNum,
Rectangle bounds,
bool readOnly,
string displayText,
bool cellIsVisible)
{
DateTime value = (DateTime)
GetColumnValueAtRow(source, rowNum);
if (cellIsVisible)
{
customDateTimePicker1.Bounds = new Rectangle
(bounds.X + 2, bounds.Y + 2,
bounds.Width - 4, bounds.Height - 4);
customDateTimePicker1.Value = value;
customDateTimePicker1.Visible = true;
customDateTimePicker1.ValueChanged +=
new EventHandler(TimePickerValueChanged);
}
else
{
customDateTimePicker1.Value = value;
customDateTimePicker1.Visible = false;
}
if (customDateTimePicker1.Visible)
DataGridTableStyle.DataGrid.Invalidate(bounds);
customDateTimePicker1.Focus();
}
protected override Size GetPreferredSize(
Graphics g,
object value)
{
return new Size(100, customDateTimePicker1.PreferredHeight + 4);
}
protected override int GetMinimumHeight()
{
return customDateTimePicker1.PreferredHeight + 4;
}
protected override int GetPreferredHeight(Graphics g,
object value)
{
return customDateTimePicker1.PreferredHeight + 4;
}
protected override void Paint(Graphics g,
Rectangle bounds,
CurrencyManager source,
int rowNum)
{
Paint(g, bounds, source, rowNum, false);
}
protected override void Paint(
Graphics g,
Rectangle bounds,
CurrencyManager source,
int rowNum,
bool alignToRight)
{
Paint(
g, bounds,
source,
rowNum,
Brushes.Red,
Brushes.Blue,
alignToRight);
}
protected override void Paint(
Graphics g,
Rectangle bounds,
CurrencyManager source,
int rowNum,
Brush backBrush,
Brush foreBrush,
bool alignToRight)
{
DateTime date = (DateTime)
GetColumnValueAtRow(source, rowNum);
Rectangle rect = bounds;
g.FillRectangle(backBrush, rect);
rect.Offset(0, 2);
rect.Height -= 2;
g.DrawString(date.ToString("d"),
this.DataGridTableStyle.DataGrid.Font,
foreBrush, rect);
}
protected override void SetDataGridInColumn(DataGrid value)
{
base.SetDataGridInColumn(value);
if (customDateTimePicker1.Parent != null)
{
customDateTimePicker1.Parent.Controls.Remove
(customDateTimePicker1);
}
if (value != null)
{
value.Controls.Add(customDateTimePicker1);
}
}
private void TimePickerValueChanged(object sender, EventArgs e)
{
// Remove the handler to prevent it from being called twice in a row.
customDateTimePicker1.ValueChanged -=
new EventHandler(TimePickerValueChanged);
this.isEditing = true;
base.ColumnStartedEditing(customDateTimePicker1);
}
}
public class CustomDateTimePicker : DateTimePicker
{
[SecurityPermissionAttribute(
SecurityAction.LinkDemand, Flags=SecurityPermissionFlag.UnmanagedCode)]
protected override bool ProcessKeyMessage(ref Message m)
{
// Keep all the keys for the DateTimePicker.
return ProcessKeyEventArgs(ref m);
}
}
public class MyForm : Form
{
private DataTable namesDataTable;
private DataGrid grid = new DataGrid();
public MyForm() : base()
{
InitForm();
namesDataTable = new DataTable("NamesTable");
namesDataTable.Columns.Add(new DataColumn("Name"));
DataColumn dateColumn = new DataColumn
("Date", typeof(DateTime));
dateColumn.DefaultValue = DateTime.Today;
namesDataTable.Columns.Add(dateColumn);
DataSet namesDataSet = new DataSet();
namesDataSet.Tables.Add(namesDataTable);
grid.DataSource = namesDataSet;
grid.DataMember = "NamesTable";
AddGridStyle();
AddData();
}
private void AddGridStyle()
{
DataGridTableStyle myGridStyle = new DataGridTableStyle();
myGridStyle.MappingName = "NamesTable";
DataGridTextBoxColumn nameColumnStyle =
new DataGridTextBoxColumn();
nameColumnStyle.MappingName = "Name";
nameColumnStyle.HeaderText = "Name";
myGridStyle.GridColumnStyles.Add(nameColumnStyle);
DataGridTimePickerColumn timePickerColumnStyle =
new DataGridTimePickerColumn();
timePickerColumnStyle.MappingName = "Date";
timePickerColumnStyle.HeaderText = "Date";
timePickerColumnStyle.Width = 100;
myGridStyle.GridColumnStyles.Add(timePickerColumnStyle);
grid.TableStyles.Add(myGridStyle);
}
private void AddData()
{
DataRow dRow = namesDataTable.NewRow();
dRow["Name"] = "Name 1";
dRow["Date"] = new DateTime(2001, 12, 01);
namesDataTable.Rows.Add(dRow);
dRow = namesDataTable.NewRow();
dRow["Name"] = "Name 2";
dRow["Date"] = new DateTime(2001, 12, 04);
namesDataTable.Rows.Add(dRow);
dRow = namesDataTable.NewRow();
dRow["Name"] = "Name 3";
dRow["Date"] = new DateTime(2001, 12, 29);
namesDataTable.Rows.Add(dRow);
dRow = namesDataTable.NewRow();
dRow["Name"] = "Name 4";
dRow["Date"] = new DateTime(2001, 12, 13);
namesDataTable.Rows.Add(dRow);
dRow = namesDataTable.NewRow();
dRow["Name"] = "Name 5";
dRow["Date"] = new DateTime(2001, 12, 21);
namesDataTable.Rows.Add(dRow);
namesDataTable.AcceptChanges();
}
private void InitForm()
{
this.Size = new Size(500, 500);
grid.Size = new Size(350, 250);
grid.TabStop = true;
grid.TabIndex = 1;
this.StartPosition = FormStartPosition.CenterScreen;
this.Controls.Add(grid);
}
[STAThread]
public static void Main()
{
MyForm myForm1 = new MyForm();
myForm1.ShowDialog();
}
}
#using <System.dll>
#using <System.Data.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Data;
using namespace System::Windows::Forms;
using namespace System::Drawing;
using namespace System::Security::Permissions;
// This example shows how to create your own column style that
// hosts a control, in this case, a DateTimePicker.
public ref class CustomDateTimePicker : public DateTimePicker
{
protected:
[SecurityPermission(SecurityAction::Demand, Flags=SecurityPermissionFlag::UnmanagedCode)]
virtual bool ProcessKeyMessage( Message% m ) override
{
// Keep all the keys for the DateTimePicker.
return ProcessKeyEventArgs( m );
}
};
public ref class DataGridTimePickerColumn : public DataGridColumnStyle
{
private:
CustomDateTimePicker^ customDateTimePicker1;
// The isEditing field tracks whether or not the user is
// editing data with the hosted control.
bool isEditing;
public:
DataGridTimePickerColumn()
{
customDateTimePicker1 = gcnew CustomDateTimePicker;
customDateTimePicker1->Visible = false;
}
protected:
virtual void Abort( int /*rowNum*/ ) override
{
isEditing = false;
customDateTimePicker1->ValueChanged -=
gcnew EventHandler( this, &DataGridTimePickerColumn::TimePickerValueChanged );
Invalidate();
}
virtual bool Commit( CurrencyManager^ dataSource, int rowNum ) override
{
customDateTimePicker1->Bounds = Rectangle::Empty;
customDateTimePicker1->ValueChanged -=
gcnew EventHandler( this, &DataGridTimePickerColumn::TimePickerValueChanged );
if ( !isEditing )
return true;
isEditing = false;
try
{
DateTime value = customDateTimePicker1->Value;
SetColumnValueAtRow( dataSource, rowNum, value );
}
catch ( Exception^ )
{
Abort( rowNum );
return false;
}
Invalidate();
return true;
}
virtual void Edit(
CurrencyManager^ source,
int rowNum,
Rectangle bounds,
bool /*readOnly*/,
String^ /*displayText*/,
bool cellIsVisible ) override
{
DateTime value = (DateTime)
GetColumnValueAtRow( source, rowNum );
if ( cellIsVisible )
{
customDateTimePicker1->Bounds = Rectangle(
bounds.X + 2, bounds.Y + 2,
bounds.Width - 4, bounds.Height - 4 );
customDateTimePicker1->Value = value;
customDateTimePicker1->Visible = true;
customDateTimePicker1->ValueChanged +=
gcnew EventHandler( this, &DataGridTimePickerColumn::TimePickerValueChanged );
}
else
{
customDateTimePicker1->Value = value;
customDateTimePicker1->Visible = false;
}
if ( customDateTimePicker1->Visible )
DataGridTableStyle->DataGrid->Invalidate( bounds );
customDateTimePicker1->Focus();
}
virtual System::Drawing::Size GetPreferredSize(
Graphics^ /*g*/,
Object^ /*value*/ ) override
{
return Size( 100, customDateTimePicker1->PreferredHeight + 4);
}
virtual int GetMinimumHeight() override
{
return customDateTimePicker1->PreferredHeight + 4;
}
virtual int GetPreferredHeight( Graphics^ /*g*/,
Object^ /*value*/ ) override
{
return customDateTimePicker1->PreferredHeight + 4;
}
virtual void Paint( Graphics^ g,
Rectangle bounds,
CurrencyManager^ source,
int rowNum ) override
{
Paint( g, bounds, source, rowNum, false );
}
virtual void Paint(
Graphics^ g,
Rectangle bounds,
CurrencyManager^ source,
int rowNum,
bool alignToRight ) override
{
Paint(
g, bounds,
source,
rowNum,
Brushes::Red,
Brushes::Blue,
alignToRight );
}
virtual void Paint(
Graphics^ g,
Rectangle bounds,
CurrencyManager^ source,
int rowNum,
Brush^ backBrush,
Brush^ foreBrush,
bool /*alignToRight*/ ) override
{
DateTime date = (DateTime)
GetColumnValueAtRow( source, rowNum );
Rectangle rect = bounds;
g->FillRectangle( backBrush, rect );
rect.Offset( 0, 2 );
rect.Height -= 2;
g->DrawString( date.ToString( "d" ),
this->DataGridTableStyle->DataGrid->Font,
foreBrush, rect );
}
virtual void SetDataGridInColumn( DataGrid^ value ) override
{
DataGridColumnStyle::SetDataGridInColumn( value );
if ( customDateTimePicker1->Parent != nullptr )
{
customDateTimePicker1->Parent->Controls->Remove
( customDateTimePicker1 );
}
if ( value != nullptr )
{
value->Controls->Add( customDateTimePicker1 );
}
}
private:
void TimePickerValueChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
{
// Remove the handler to prevent it from being called twice in a row.
customDateTimePicker1->ValueChanged -=
gcnew EventHandler( this, &DataGridTimePickerColumn::TimePickerValueChanged );
this->isEditing = true;
DataGridColumnStyle::ColumnStartedEditing( customDateTimePicker1 );
}
};
public ref class MyForm: public Form
{
private:
DataTable^ namesDataTable;
DataGrid^ grid;
public:
MyForm()
{
grid = gcnew DataGrid;
InitForm();
namesDataTable = gcnew DataTable( "NamesTable" );
namesDataTable->Columns->Add( gcnew DataColumn( "Name" ) );
DataColumn^ dateColumn = gcnew DataColumn
( "Date",DateTime::typeid );
dateColumn->DefaultValue = DateTime::Today;
namesDataTable->Columns->Add( dateColumn );
DataSet^ namesDataSet = gcnew DataSet;
namesDataSet->Tables->Add( namesDataTable );
grid->DataSource = namesDataSet;
grid->DataMember = "NamesTable";
AddGridStyle();
AddData();
}
private:
void AddGridStyle()
{
DataGridTableStyle^ myGridStyle = gcnew DataGridTableStyle;
myGridStyle->MappingName = "NamesTable";
DataGridTextBoxColumn^ nameColumnStyle =
gcnew DataGridTextBoxColumn;
nameColumnStyle->MappingName = "Name";
nameColumnStyle->HeaderText = "Name";
myGridStyle->GridColumnStyles->Add( nameColumnStyle );
DataGridTimePickerColumn^ timePickerColumnStyle =
gcnew DataGridTimePickerColumn;
timePickerColumnStyle->MappingName = "Date";
timePickerColumnStyle->HeaderText = "Date";
timePickerColumnStyle->Width = 100;
myGridStyle->GridColumnStyles->Add( timePickerColumnStyle );
grid->TableStyles->Add( myGridStyle );
}
void AddData()
{
DataRow^ dRow = namesDataTable->NewRow();
dRow->default[ "Name" ] = "Name 1";
dRow->default[ "Date" ] = DateTime(2001,12,01);
namesDataTable->Rows->Add( dRow );
dRow = namesDataTable->NewRow();
dRow->default[ "Name" ] = "Name 2";
dRow->default[ "Date" ] = DateTime(2001,12,04);
namesDataTable->Rows->Add( dRow );
dRow = namesDataTable->NewRow();
dRow->default[ "Name" ] = "Name 3";
dRow->default[ "Date" ] = DateTime(2001,12,29);
namesDataTable->Rows->Add( dRow );
dRow = namesDataTable->NewRow();
dRow->default[ "Name" ] = "Name 4";
dRow->default[ "Date" ] = DateTime(2001,12,13);
namesDataTable->Rows->Add( dRow );
dRow = namesDataTable->NewRow();
dRow->default[ "Name" ] = "Name 5";
dRow->default[ "Date" ] = DateTime(2001,12,21);
namesDataTable->Rows->Add( dRow );
namesDataTable->AcceptChanges();
}
void InitForm()
{
this->Size = System::Drawing::Size( 500, 500 );
grid->Size = System::Drawing::Size( 350, 250 );
grid->TabStop = true;
grid->TabIndex = 1;
this->StartPosition = FormStartPosition::CenterScreen;
this->Controls->Add( grid );
}
};
[STAThread]
int main()
{
MyForm^ myForm1 = gcnew MyForm;
myForm1->ShowDialog();
}
继承层次结构
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.DataGridColumnStyle
Microsoft.CLRAdmin.DataGridComboBoxColumnStyle
System.Windows.Forms.DataGridBoolColumn
System.Windows.Forms.DataGridTextBoxColumn
线程安全
此类型的任何公共静态（Visual Basic 中的 Shared）成员都是线程安全的，但不保证所有实例成员都是线程安全的。
平台
Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition
.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。
版本信息
.NET Framework
受以下版本支持：2.0、1.1、1.0
.NET Compact Framework
受以下版本支持：2.0、1.0
请参见
参考
DataGridColumnStyle 成员
System.Windows.Forms 命名空间
DataColumn
DataGrid 类
DataGridBoolColumn 类
DataGridTextBox
DataGridTableStyle
DataView
GridColumnStylesCollection