DataGridTableStyle.MappingNameChanged イベントとは何？わかりやすく解説 Weblio辞書

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.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

DataGridTableStyle.MappingNameChanged イベント

MappingName 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 MappingNameChanged As
 EventHandler

Visual Basic (使用法)

Dim instance As DataGridTableStyle
Dim handler As EventHandler

AddHandler instance.MappingNameChanged, handler

public event EventHandler MappingNameChanged

C++

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

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

/** @event */
public void remove_MappingNameChanged (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()
   myDataGridTableStyle1 = New DataGridTableStyle()
   AddHandler myDataGridTableStyle1.MappingNameChanged, AddressOf
 MappingNameChanged_Handler
   AddHandler myDataGridTableStyle1.GridLineStyleChanged, AddressOf
 GridLineStyleChanged_Handler
   myDataGridTableStyle1.MappingName = "Customers"

   ' Set other properties.
   myDataGridTableStyle1.AlternatingBackColor = Color.LightGray
   myDataGridTableStyle1.GridLineStyle = System.Windows.Forms.DataGridLineStyle.None

   ' Add a GridColumnStyle and set its MappingName.
   Dim myBoolCol = New DataGridBoolColumn()
   myBoolCol.MappingName = "Current"
   myBoolCol.HeaderText = "IsCurrent Customer"
   myBoolCol.Width = 150
   myDataGridTableStyle1.GridColumnStyles.Add(myBoolCol)

   ' Add a second column style.
   Dim myTextCol = New DataGridTextBoxColumn()
   myTextCol.MappingName = "custName"
   myTextCol.HeaderText = "Customer Name"
   myTextCol.Width = 250
   myDataGridTableStyle1.GridColumnStyles.Add(myTextCol)

   ' Create new ColumnStyle objects.
   Dim cOrderDate = New DataGridTextBoxColumn()
   cOrderDate.MappingName = "OrderDate"
   cOrderDate.HeaderText = "Order Date"
   cOrderDate.Width = 100

   ' Use PropertyDescriptor to create a formatted column.
   Dim myPropertyDescriptorCollection As PropertyDescriptorCollection
 = _
               Me.BindingContext(myDataSet, "Customers.custToOrders").GetItemProperties()
   Dim csOrderAmount = New DataGridTextBoxColumn
 _
            (myPropertyDescriptorCollection("OrderAmount"),
 "c", True)
   csOrderAmount.MappingName = "OrderAmount"
   csOrderAmount.HeaderText = "Total"
   csOrderAmount.Width = 100

   ' Add the DataGridTableStyle object to GridTableStylesCollection.
   myDataGrid.TableStyles.Add(myDataGridTableStyle1)
End Sub 'AddCustomDataTableStyle

Private Sub MappingNameChanged_Handler(ByVal
 sender As Object, ByVal
 e As EventArgs)
   MessageBox.Show("MappingName Changed", "DataGridTableStyle")
End Sub 'MappingNameChanged_Handler

Private Sub GridLineStyleChanged_Handler(ByVal
 sender As Object, ByVal
 e As EventArgs)
   MessageBox.Show("GridLineStyle  Changed", "DataGridTableStyle")
End Sub 'GridLineStyleChanged_Handler

private void AddCustomDataTableStyle()
{
   myDataGridTableStyle1 = new DataGridTableStyle();
   myDataGridTableStyle1.MappingNameChanged+=
      new System.EventHandler(MappingNameChanged_Handler);
   myDataGridTableStyle1.GridLineStyleChanged += 
      new System.EventHandler(GridLineStyleChanged_Handler);
   myDataGridTableStyle1.MappingName = "Customers";

   // Set other properties.
   myDataGridTableStyle1.AlternatingBackColor = Color.LightGray;
   myDataGridTableStyle1.GridLineStyle=
      System.Windows.Forms.DataGridLineStyle.None;

   // Add a GridColumnStyle and set its MappingName.          
   DataGridColumnStyle myBoolCol = new DataGridBoolColumn();
   myBoolCol.MappingName = "Current";
   myBoolCol.HeaderText = "IsCurrent Customer";
   myBoolCol.Width = 150;
   myDataGridTableStyle1.GridColumnStyles.Add(myBoolCol);

   // Add a second column style.
   DataGridColumnStyle myTextCol = new DataGridTextBoxColumn();
   myTextCol.MappingName = "custName";
   myTextCol.HeaderText = "Customer Name";
   myTextCol.Width = 250;
   myDataGridTableStyle1.GridColumnStyles.Add(myTextCol);

   // Create new ColumnStyle objects.
   DataGridColumnStyle cOrderDate = new DataGridTextBoxColumn();
   cOrderDate.MappingName = "OrderDate";
   cOrderDate.HeaderText = "Order Date";
   cOrderDate.Width = 100;

   // Use PropertyDescriptor to create a formatted column.         
   PropertyDescriptorCollection myPropertyDescriptorCollection = this.BindingContext
      [myDataSet, "Customers.custToOrders"].GetItemProperties();      
   
   DataGridColumnStyle csOrderAmount = 
      new DataGridTextBoxColumn(myPropertyDescriptorCollection["OrderAmount"],
 "c", true);
   csOrderAmount.MappingName = "OrderAmount";
   csOrderAmount.HeaderText = "Total";
   csOrderAmount.Width = 100;
        
   // Add the DataGridTableStyle object to GridTableStylesCollection.
   myDataGrid.TableStyles.Add(myDataGridTableStyle1);      
}
private void MappingNameChanged_Handler(object
 sender,EventArgs e)
{         
   MessageBox.Show("MappingName Changed", "DataGridTableStyle");
}
private void GridLineStyleChanged_Handler(object
 sender,EventArgs e)
{
   MessageBox.Show("GridLineStyle  Changed", "DataGridTableStyle");
}

C++

private:
   void AddCustomDataTableStyle()
   {
      myDataGridTableStyle1 = gcnew DataGridTableStyle;
      myDataGridTableStyle1->MappingNameChanged += gcnew System::EventHandler(
 this, &DataGridTableStyle_Sample::MappingNameChanged_Handler
 );
      myDataGridTableStyle1->GridLineStyleChanged += gcnew System::EventHandler(
 this, &DataGridTableStyle_Sample::GridLineStyleChanged_Handler
 );
      myDataGridTableStyle1->MappingName = "Customers";

      // Set other properties.
      myDataGridTableStyle1->AlternatingBackColor = Color::LightGray;
      myDataGridTableStyle1->GridLineStyle = System::Windows::Forms::DataGridLineStyle::None;

      // Add a GridColumnStyle and set its MappingName.
      DataGridColumnStyle^ myBoolCol = gcnew DataGridBoolColumn;
      myBoolCol->MappingName = "Current";
      myBoolCol->HeaderText = "IsCurrent Customer";
      myBoolCol->Width = 150;
      myDataGridTableStyle1->GridColumnStyles->Add( myBoolCol );

      // Add a second column style.
      DataGridColumnStyle^ myTextCol = gcnew DataGridTextBoxColumn;
      myTextCol->MappingName = "custName";
      myTextCol->HeaderText = "Customer Name";
      myTextCol->Width = 250;
      myDataGridTableStyle1->GridColumnStyles->Add( myTextCol );

      // Create new ColumnStyle objects.
      DataGridColumnStyle^ cOrderDate = gcnew DataGridTextBoxColumn;
      cOrderDate->MappingName = "OrderDate";
      cOrderDate->HeaderText = "Order Date";
      cOrderDate->Width = 100;

      // Use PropertyDescriptor to create a formatted column.
      PropertyDescriptorCollection^ myPropertyDescriptorCollection = this->BindingContext[myDataSet,
 "Customers::custToOrders"]->GetItemProperties();
      DataGridColumnStyle^ csOrderAmount = gcnew DataGridTextBoxColumn( myPropertyDescriptorCollection[
 "OrderAmount" ],"c",true );
      csOrderAmount->MappingName = "OrderAmount";
      csOrderAmount->HeaderText = "Total";
      csOrderAmount->Width = 100;

      // Add the DataGridTableStyle Object* to GridTableStylesCollection.
      myDataGrid->TableStyles->Add( myDataGridTableStyle1 );
   }

   void MappingNameChanged_Handler( Object^ /*sender*/, EventArgs^
 /*e*/ )
   {
      MessageBox::Show( "MappingName Changed", "DataGridTableStyle"
 );
   }

   void GridLineStyleChanged_Handler( Object^ /*sender*/, EventArgs^
 /*e*/ )
   {
      MessageBox::Show( "GridLineStyle  Changed", "DataGridTableStyle"
 );
   }

private void AddCustomDataTableStyle()
{
    myDataGridTableStyle1 = new DataGridTableStyle();
    myDataGridTableStyle1.add_MappingNameChanged(
        new System.EventHandler(MappingNameChanged_Handler));
    myDataGridTableStyle1.add_GridLineStyleChanged(
        new System.EventHandler(GridLineStyleChangedHandler));
    myDataGridTableStyle1.set_MappingName("Customers");

    // Set other properties.
    myDataGridTableStyle1.set_AlternatingBackColor(Color.get_LightGray());
    myDataGridTableStyle1.set_GridLineStyle(
        System.Windows.Forms.DataGridLineStyle.None);

    // Add a GridColumnStyle and set its MappingName.          
    DataGridColumnStyle myBoolCol = new DataGridBoolColumn();

    myBoolCol.set_MappingName("Current");
    myBoolCol.set_HeaderText("IsCurrent Customer");
    myBoolCol.set_Width(150);
    myDataGridTableStyle1.get_GridColumnStyles().Add(myBoolCol);

    // Add a second column style.
    DataGridColumnStyle myTextCol = new DataGridTextBoxColumn();

    myTextCol.set_MappingName("custName");
    myTextCol.set_HeaderText("Customer Name");
    myTextCol.set_Width(250);
    myDataGridTableStyle1.get_GridColumnStyles().Add(myTextCol);

    // Create new ColumnStyle objects.
    DataGridColumnStyle cOrderDate = new DataGridTextBoxColumn();

    cOrderDate.set_MappingName("OrderDate");
    cOrderDate.set_HeaderText("Order Date");
    cOrderDate.set_Width(100);

    // Use PropertyDescriptor to create a formatted column.        
 
    PropertyDescriptorCollection myPropertyDescriptorCollection = 
        this.get_BindingContext().get_Item(myDataSet, 
        "Customers.custToOrders").GetItemProperties();
    DataGridColumnStyle csOrderAmount = new DataGridTextBoxColumn(
        myPropertyDescriptorCollection.get_Item("OrderAmount"), "c",
 true);

    csOrderAmount.set_MappingName("OrderAmount");
    csOrderAmount.set_HeaderText("Total");
    csOrderAmount.set_Width(100);

    // Add the DataGridTableStyle object to GridTableStylesCollection.
    myDataGrid.get_TableStyles().Add(myDataGridTableStyle1);
} //AddCustomDataTableStyle

private void MappingNameChanged_Handler(Object
 sender, EventArgs e)
{
    MessageBox.Show("MappingName Changed", "DataGridTableStyle");
} //MappingNameChanged_Handler

private void GridLineStyleChangedHandler(Object
 sender, EventArgs e)
{
    MessageBox.Show("GridLineStyle  Changed", "DataGridTableStyle");
} //GridLineStyleChangedHandler

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
DataGridTableStyle クラス
DataGridTableStyle メンバ
System.Windows.Forms 名前空間
DataGridTableStyle.MappingName プロパティ

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