共用方式為

DataGridBoolColumn.TrueValue 屬性

  • 參考

定義

命名空間:
System.Windows.Forms
組件:
System.Windows.Forms.dll

取得或設定當資料行值設定為 true 時，實際使用的數值。

public:
 property System::Object ^ TrueValue { System::Object ^ get(); void set(System::Object ^ value); };
[System.ComponentModel.TypeConverter(typeof(System.ComponentModel.StringConverter))]
public object TrueValue { get; set; }
[<System.ComponentModel.TypeConverter(typeof(System.ComponentModel.StringConverter))>]
member this.TrueValue : obj with get, set
Public Property TrueValue As Object

屬性值

Object

屬性值，需輸入為 Object。

屬性
TypeConverterAttribute

範例

下列程式碼範例會設定 TrueValue 的 、 FalseValue 和 NullValue 屬性 DataGridBoolColumn 。

private:

   void SetBoolColumnValues()
   {
      DataGridBoolColumn^ myGridColumn;
      
      // Get the DataGridBoolColumn you are setting.
      myGridColumn = dynamic_cast<DataGridBoolColumn^>(myDataGrid->TableStyles[ "Customers" ]->GridColumnStyles[ "Current" ]);
      
      // Set TrueValue, FalseValue, and NullValue.
      myGridColumn->TrueValue = true;
      myGridColumn->FalseValue = false;
      myGridColumn->NullValue = Convert::DBNull;
   }

private void SetBoolColumnValues(){
   DataGridBoolColumn myGridColumn;
   // Get the DataGridBoolColumn you are setting.
   myGridColumn = (DataGridBoolColumn) myDataGrid.
   TableStyles["Customers"].GridColumnStyles["Current"];
   // Set TrueValue, FalseValue, and NullValue.
   myGridColumn.TrueValue = true;
   myGridColumn.FalseValue = false;
   myGridColumn.NullValue = Convert.DBNull;
}

Private Sub SetBoolColumnValues()
   Dim myGridColumn As DataGridBoolColumn 
   ' Get the DataGridBoolColumn you are setting.
   myGridColumn = CType(myDataGrid.TableStyles _
   ("Customers").GridColumnStyles("Current"), DataGridBoolColumn)
   ' Set TrueValue, FalseValue, and NullValue.
   myGridColumn.TrueValue = true
   myGridColumn.FalseValue = false
   myGridColumn.NullValue = Convert.DBNull
End Sub

備註

FalseValue、 NullValue 和 TrueValue 屬性會決定推送至資料來源的實際值。

適用於

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