DataGridViewCell.EditType DataGridViewCell.EditType DataGridViewCell.EditType DataGridViewCell.EditType Property

Definition

Ruft den Typ des gehosteten Bearbeitungssteuerelements der Zelle ab.Gets the type of the cell's hosted editing control.

public:
 virtual property Type ^ EditType { Type ^ get(); };
[System.ComponentModel.Browsable(false)]
public virtual Type EditType { get; }
member this.EditType : Type
Public Overridable ReadOnly Property EditType As Type

Eigenschaftswert

Ein Type, der den DataGridViewTextBoxEditingControl-Typ darstellt.A Type representing the DataGridViewTextBoxEditingControl type.

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, wie die EditType -Eigenschaft in CalendarCell einer Klasse überschrieben DataGridViewTextBoxCellwird, die von abgeleitet wird.The following code example demonstrates how to override the EditType property in a CalendarCell class that derives from DataGridViewTextBoxCell. Dieses Beispiel ist Teil eines größeren Code Beispiels, das unter Vorgehensweise: Host Steuerelemente in Windows Forms DataGridView-Zellen.This example is part of a larger code example provided in How to: Host Controls in Windows Forms DataGridView Cells.

public class CalendarCell : DataGridViewTextBoxCell
{

    public CalendarCell()
        : base()
    {
        // Use the short date format.
        this.Style.Format = "d";
    }

    public override void InitializeEditingControl(int rowIndex, object 
        initialFormattedValue, DataGridViewCellStyle dataGridViewCellStyle)
    {
        // Set the value of the editing control to the current cell value.
        base.InitializeEditingControl(rowIndex, initialFormattedValue, 
            dataGridViewCellStyle);
        CalendarEditingControl ctl = 
            DataGridView.EditingControl as CalendarEditingControl;
        // Use the default row value when Value property is null.
        if (this.Value == null)
        {
            ctl.Value = (DateTime)this.DefaultNewRowValue;
        }
        else
        {
            ctl.Value = (DateTime)this.Value;
        }
    }

    public override Type EditType
    {
        get
        {
            // Return the type of the editing control that CalendarCell uses.
            return typeof(CalendarEditingControl);
        }
    }

    public override Type ValueType
    {
        get
        {
            // Return the type of the value that CalendarCell contains.
            
            return typeof(DateTime);
        }
    }

    public override object DefaultNewRowValue
    {
        get
        {
            // Use the current date and time as the default value.
            return DateTime.Now;
        }
    }
}
Public Class CalendarCell
    Inherits DataGridViewTextBoxCell

    Public Sub New()
        ' Use the short date format.
        Me.Style.Format = "d"
    End Sub

    Public Overrides Sub InitializeEditingControl(ByVal rowIndex As Integer, _
        ByVal initialFormattedValue As Object, _
        ByVal dataGridViewCellStyle As DataGridViewCellStyle)

        ' Set the value of the editing control to the current cell value.
        MyBase.InitializeEditingControl(rowIndex, initialFormattedValue, _
            dataGridViewCellStyle)

        Dim ctl As CalendarEditingControl = _
            CType(DataGridView.EditingControl, CalendarEditingControl)

        ' Use the default row value when Value property is null.
        If (Me.Value Is Nothing) Then
            ctl.Value = CType(Me.DefaultNewRowValue, DateTime)
        Else
            ctl.Value = CType(Me.Value, DateTime)
        End If
    End Sub

    Public Overrides ReadOnly Property EditType() As Type
        Get
            ' Return the type of the editing control that CalendarCell uses.
            Return GetType(CalendarEditingControl)
        End Get
    End Property

    Public Overrides ReadOnly Property ValueType() As Type
        Get
            ' Return the type of the value that CalendarCell contains.
            Return GetType(DateTime)
        End Get
    End Property

    Public Overrides ReadOnly Property DefaultNewRowValue() As Object
        Get
            ' Use the current date and time as the default value.
            Return DateTime.Now
        End Get
    End Property

End Class

Hinweise

Ein abgeleiteter Zellentyp überschreibt diese Eigenschaft, um den Typ des gehosteten Bearbeitungs Steuer Elements zurückzugeben.A derived cell type overrides this property to return the type of its hosted editing control. Wenn die Zelle nicht über ein Bearbeitungs Steuerelement verfügt, wie DataGridViewButtonCellbei, EditType gibt die null-Eigenschaft zurück.If the cell does not have an editing control, as with DataGridViewButtonCell, the EditType property returns null.

Gilt für:

Siehe auch