EditType プロパティ (Cell)

セルのホストされる編集コントロールの型を取得します。

構文

Visual Basic (宣言)
C#

Public Overridable ReadOnly Property EditType As Type

public virtual Type EditType {get;}

プロパティ値

セルのホストされる編集コントロールの型を表すSystem.Type値。

解説

派生したセル型は、このプロパティをオーバーライドして、そのセル型でホストされる編集コントロールの型を返します。ProgressBarCellのように編集コントロールを持たないセルでは、EditTypeプロパティはnull 参照 (Visual Basicでは Nothing)を返します。

使用例

次のサンプルコードは、カスタムセルでこのプロパティを使用する方法を示します。このサンプルコードは、IEditingControlクラスに示されている詳細なコード例の一部を抜粋したものです。

C#
Visual Basic

public class ListBoxCell : Cell
{
    public override Type EditType
    {
        get
        {
            return typeof(ListBoxEditingControl);
        }
    }

    List<string> _items = new List<string>();

    public List<string> Items
    {
        get
        {
            return _items;
        }
    }

    protected override void InitializeEditingControl(int rowIndex, object formattedValue, CellStyle style)
    {
        // Apply the settings of cell to editing control. 
        base.InitializeEditingControl(rowIndex, formattedValue, style);

        ListBoxEditingControl listBoxEditingControl = this.GcMultiRow.EditingControl as ListBoxEditingControl;

        for (int i = 0; i < this._items.Count; i++)
        {
            listBoxEditingControl.Items.Add(this._items[i]);
        }

        listBoxEditingControl.FormattedValue = formattedValue;
    }

    protected override void TerminateEditingControl(int rowIndex)
    {
        ListBoxEditingControl listBoxEditingControl = this.GcMultiRow.EditingControl as ListBoxEditingControl;
        
        // For performance reason, MultiRow use same instance for all cells.
        // So, when leave editing status, you should clear items, to prepare editing control be used next time.
        listBoxEditingControl.Items.Clear();

        base.TerminateEditingControl(rowIndex);
    }

    public override object Clone()
    {
        // When you derive from Cell and add new properties to the derived class, be sure to
        // override the Clone method to copy the new properties during cloning operations. 
        // You should also call the base class's Clone method so that the properties of the 
        // base class are copied to the new cell. 
        ListBoxCell listBoxCell = base.Clone() as ListBoxCell;

        listBoxCell.Items.AddRange(this.Items);

        return listBoxCell;
    }
}

Public Class ListBoxCell
    Inherits Cell
    Public Overloads Overrides ReadOnly Property EditType() As Type
        Get
            Return GetType(ListBoxEditingControl)
        End Get
    End Property

    Private _items As New List(Of String)()

    Public ReadOnly Property Items() As List(Of String)
        Get
            Return _items
        End Get
    End Property

    Protected Overloads Overrides Sub InitializeEditingControl(ByVal rowIndex As Integer, ByVal formattedValue As Object, ByVal style As CellStyle)
        ' Apply the settings of cell to editing control. 
        MyBase.InitializeEditingControl(rowIndex, formattedValue, style)

        Dim listBoxEditingControl As ListBoxEditingControl = TryCast(Me.GcMultiRow.EditingControl, ListBoxEditingControl)

        For i As Integer = 0 To Me._items.Count - 1
            listBoxEditingControl.Items.Add(Me._items(i))
        Next

        listBoxEditingControl.FormattedValue = formattedValue
    End Sub

    Protected Overloads Overrides Sub TerminateEditingControl(ByVal rowIndex As Integer)
        Dim listBoxEditingControl As ListBoxEditingControl = TryCast(Me.GcMultiRow.EditingControl, ListBoxEditingControl)

        ' For performance reason, MultiRow use same instance for all cells.
        ' So, when leave editing status, you should clear items, to prepare editing control be used next time.
        listBoxEditingControl.Items.Clear()

        MyBase.TerminateEditingControl(rowIndex)
    End Sub

    Public Overloads Overrides Function Clone() As Object
        ' When you derive from Cell and add new properties to the derived class, be sure to
        ' override the Clone method to copy the new properties during cloning operations. 
        ' You should also call the base class's Clone method so that the properties of the 
        ' base class are copied to the new cell. 
        Dim listBoxCell As ListBoxCell = TryCast(MyBase.Clone(), ListBoxCell)

        listBoxCell.Items.AddRange(Me.Items)

        Return listBoxCell
    End Function
End Class

参照

Cell クラス
 Cell メンバ
 IEditingControl インターフェース