DataGridColumnStyle.HeaderTextChanged イベント

.NET Framework クラス ライブラリ リファレンス

DataGridColumnStyle.HeaderTextChanged イベント

HeaderText プロパティの値が変更された場合に発生します。

名前空間: System.Windows.Forms
アセンブリ: System.Windows.Forms (system.windows.forms.dll 内)
構文

Visual Basic (宣言)

Public Event HeaderTextChanged As
 EventHandler

Visual Basic (使用法)

Dim instance As DataGridColumnStyle
Dim handler As EventHandler

AddHandler instance.HeaderTextChanged, handler

C#

public event EventHandler HeaderTextChanged

C++

public:
event EventHandler^ HeaderTextChanged {
    void add (EventHandler^ value);
    void remove (EventHandler^ value);
}

J#

/** @event */
public void add_HeaderTextChanged (EventHandler
 value)

/** @event */
public void remove_HeaderTextChanged (EventHandler
 value)

JScript

JScript では、イベントは使用できますが、新規に宣言することはできません。

解説

イベント処理の詳細については、「イベントの利用」を参照してください。

使用例

Visual Basic

Private Sub AddCustomDataTableStyle()
   Dim myTableStyle As New
 DataGridTableStyle()
   ' Map DataGridTableStyle to a DataTable.
   myTableStyle.MappingName = "Orders"
   ' Get CurrencyManager object.
   Dim myCurrencyManager As CurrencyManager
 = CType(BindingContext(myDataSet, "Orders"), CurrencyManager)
   ' Use the CurrencyManager to get the PropertyDescriptor for the column.
   Dim myPropertyDescriptor As PropertyDescriptor
 = myCurrencyManager.GetItemProperties()("Amount")
   ' Change the HeaderText.
   Dim myColumnStyle As DataGridTextBoxColumn
 = New DataGridTextBoxColumn(myPropertyDescriptor, "c",
 True)
   ' Attach a event handler function with the 'HeaderTextChanged' event.
   AddHandler myColumnStyle.HeaderTextChanged, AddressOf
 MyHeaderText_Changed
   myColumnStyle.Width = 130
   myColumnStyle.HeaderText = "Amount in $"
   myTableStyle.GridColumnStyles.Add(myColumnStyle)
   myDataGrid.TableStyles.Add(myTableStyle)
   TablesAlreadyAdded = True
End Sub 'AddCustomDataTableStyle

 Private Sub MyHeaderText_Changed(ByVal
 sender As Object, ByVal
 e As EventArgs)
     myLabel.Text = "Header Descriptor Property of DataGridColumnStyle
 has changed"
 End Sub 'MyHeaderText_Changed

C#

private void AddCustomDataTableStyle()
{
   DataGridTableStyle myTableStyle = new DataGridTableStyle();
   // Map DataGridTableStyle to a DataTable.
   myTableStyle.MappingName = "Orders";
   // Get CurrencyManager object.
   CurrencyManager myCurrencyManager = (CurrencyManager)BindingContext[myDataSet
,"Orders"];
   // Use the CurrencyManager to get the PropertyDescriptor for the
 column.
   PropertyDescriptor myPropertyDescriptor = myCurrencyManager.GetItemProperties()["Amount"];
   // Change the HeaderText.
   DataGridColumnStyle myColumnStyle = new DataGridTextBoxColumn(myPropertyDescriptor
,"c",true);
   // Attach a event handler function with the 'HeaderTextChanged' event.
   myColumnStyle.HeaderTextChanged+=new EventHandler(MyHeaderText_Changed);
   myColumnStyle.Width=130;
   myColumnStyle.HeaderText="Amount in $";
   myTableStyle.GridColumnStyles.Add(myColumnStyle);
   myDataGrid.TableStyles.Add(myTableStyle);
   TablesAlreadyAdded=true;
}

private void MyHeaderText_Changed(object sender,EventArgs
 e)
{
   myLabel.Text="Header Descriptor Property of DataGridColumnStyle has changed";
}

C++

private:
   void AddCustomDataTableStyle()
   {
      DataGridTableStyle^ myTableStyle = gcnew DataGridTableStyle;
      
      // Map DataGridTableStyle to a DataTable.
      myTableStyle->MappingName = "Orders";
      
      // Get CurrencyManager Object*.
      CurrencyManager^ myCurrencyManager = dynamic_cast<CurrencyManager^>(BindingContext[myDataSet,
 "Orders"]);
      
      // Use the CurrencyManager to get the PropertyDescriptor for the
 column.
      PropertyDescriptor^ myPropertyDescriptor = myCurrencyManager->GetItemProperties()[
 "Amount" ];
      
      // Change the HeaderText.
      DataGridColumnStyle^ myColumnStyle = gcnew DataGridTextBoxColumn( myPropertyDescriptor,"c",true
 );
      
      // Attach a event handler function with the 'HeaderTextChanged'
 event.
      myColumnStyle->HeaderTextChanged += gcnew EventHandler( this,
 &myDataForm::MyHeaderText_Changed );
      myColumnStyle->Width = 130;
      myColumnStyle->HeaderText = "Amount in $";
      myTableStyle->GridColumnStyles->Add( myColumnStyle );
      myDataGrid->TableStyles->Add( myTableStyle );
      TablesAlreadyAdded = (bool *)true;
   }

   void MyHeaderText_Changed( Object^ /*sender*/, EventArgs^ /*e*/
 )
   {
      myLabel->Text = "Header Descriptor Property of DataGridColumnStyle
 has changed";
   }

J#

private void AddCustomDataTableStyle()
{
    DataGridTableStyle myTableStyle = new DataGridTableStyle();

    // Map DataGridTableStyle to a DataTable.
    myTableStyle.set_MappingName("Orders");

    // Get CurrencyManager object.
    CurrencyManager myCurrencyManager = (CurrencyManager) 
        get_BindingContext().get_Item(myDataSet, "Orders");

    // Use the CurrencyManager to get the PropertyDescriptor for the
 column.
    PropertyDescriptor myPropertyDescriptor = 
        myCurrencyManager.GetItemProperties().get_Item("Amount");

    // Change the HeaderText.
    DataGridColumnStyle myColumnStyle = 
        new DataGridTextBoxColumn(myPropertyDescriptor, "c",
 true);

    // Attach a event handler function with the 'HeaderTextChanged'
 event.
    myColumnStyle.add_HeaderTextChanged(new EventHandler(
        MyHeaderText_Changed));
    myColumnStyle.set_Width(130);
    myColumnStyle.set_HeaderText("Amount in $");
    myTableStyle.get_GridColumnStyles().Add(myColumnStyle);
    myDataGrid.get_TableStyles().Add(myTableStyle);
    tablesAlreadyAdded = true;
} //AddCustomDataTableStyle

void MyHeaderText_Changed(Object sender, EventArgs e)
{
    myLabel.set_Text("Header Descriptor Property of DataGridColumnStyle "
 
        + "has changed");
} //MyHeaderText_Changed

プラットフォーム

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

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
DataGridColumnStyle クラス
DataGridColumnStyle メンバ
System.Windows.Forms 名前空間