DataGridViewCell.EditType Propriété

Définition

Obtient le type du contrôle d'édition hébergé de la cellule.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

Valeur de propriété

Type représentant le type DataGridViewTextBoxEditingControl.A Type representing the DataGridViewTextBoxEditingControl type.

Attributs

Exemples

L’exemple de code suivant montre comment substituer la propriété EditType dans une classe CalendarCell qui dérive de DataGridViewTextBoxCell.The following code example demonstrates how to override the EditType property in a CalendarCell class that derives from DataGridViewTextBoxCell. Cet exemple fait partie d’un exemple de code plus large fourni dans Comment : héberger des contrôles dans Windows Forms des cellules DataGridView.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

Remarques

Un type de cellule dérivée se substitue à cette propriété pour retourner le type de son contrôle d’édition hébergé.A derived cell type overrides this property to return the type of its hosted editing control. Si la cellule n’a pas de contrôle d’édition, comme avec DataGridViewButtonCell, la propriété EditType retourne null.If the cell does not have an editing control, as with DataGridViewButtonCell, the EditType property returns null.

S’applique à

Voir aussi