DataGridView.CurrentCellDirtyStateChanged Événement

Définition

Se produit lorsque l'état d'une cellule change en raison de la modification de son contenu.Occurs when the state of a cell changes in relation to a change in its contents.

public:
 event EventHandler ^ CurrentCellDirtyStateChanged;
public event EventHandler CurrentCellDirtyStateChanged;
member this.CurrentCellDirtyStateChanged : EventHandler 
Public Custom Event CurrentCellDirtyStateChanged As EventHandler 

Exemples

L’exemple de code suivant montre comment gérer l’événement CurrentCellDirtyStateChanged.The following code example demonstrates how to handle the CurrentCellDirtyStateChanged event. Dans cet exemple, le gestionnaire d’événements appelle la méthode CommitEdit pour déclencher l’événement CellValueChanged et déterminer la valeur actuelle d’un DataGridViewCheckBoxCell.In this example, the event handler calls the CommitEdit method to raise the CellValueChanged event and determine the current value of a DataGridViewCheckBoxCell. Cet exemple de code fait partie d’un exemple plus complet fourni dans How à : Désactivez les boutons dans une colonne de bouton du contrôle DataGridView Windows Forms.This code example is part of a larger example provided in How to: Disable Buttons in a Button Column in the Windows Forms DataGridView Control.

// This event handler manually raises the CellValueChanged event
// by calling the CommitEdit method.
void dataGridView1_CurrentCellDirtyStateChanged(object sender,
    EventArgs e)
{
    if (dataGridView1.IsCurrentCellDirty)
    {
        dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
    }
}

// If a check box cell is clicked, this event handler disables  
// or enables the button in the same row as the clicked cell.
public void dataGridView1_CellValueChanged(object sender,
    DataGridViewCellEventArgs e)
{
    if (dataGridView1.Columns[e.ColumnIndex].Name == "CheckBoxes")
    {
        DataGridViewDisableButtonCell buttonCell =
            (DataGridViewDisableButtonCell)dataGridView1.
            Rows[e.RowIndex].Cells["Buttons"];

        DataGridViewCheckBoxCell checkCell =
            (DataGridViewCheckBoxCell)dataGridView1.
            Rows[e.RowIndex].Cells["CheckBoxes"];
        buttonCell.Enabled = !(Boolean)checkCell.Value;

        dataGridView1.Invalidate();
    }
}
' This event handler manually raises the CellValueChanged event
' by calling the CommitEdit method.
Sub dataGridView1_CurrentCellDirtyStateChanged( _
    ByVal sender As Object, ByVal e As EventArgs) _
    Handles dataGridView1.CurrentCellDirtyStateChanged

    If dataGridView1.IsCurrentCellDirty Then
        dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit)
    End If
End Sub

' If a check box cell is clicked, this event handler disables  
' or enables the button in the same row as the clicked cell.
Public Sub dataGridView1_CellValueChanged(ByVal sender As Object, _
    ByVal e As DataGridViewCellEventArgs) _
    Handles dataGridView1.CellValueChanged

    If dataGridView1.Columns(e.ColumnIndex).Name = "CheckBoxes" Then
        Dim buttonCell As DataGridViewDisableButtonCell = _
            CType(dataGridView1.Rows(e.RowIndex).Cells("Buttons"), _
            DataGridViewDisableButtonCell)

        Dim checkCell As DataGridViewCheckBoxCell = _
            CType(dataGridView1.Rows(e.RowIndex).Cells("CheckBoxes"), _
            DataGridViewCheckBoxCell)
        buttonCell.Enabled = Not CType(checkCell.Value, [Boolean])

        dataGridView1.Invalidate()
    End If
End Sub

Remarques

Une cellule est marquée comme modifiée si son contenu a changé mais que la modification n’a pas été enregistrée.A cell is marked as modified if its contents have changed but the change has not been saved.

Cet événement se produit généralement lorsqu’une cellule a été modifiée, mais que la modification n’a pas été validée dans le cache de données ou lorsqu’une opération de modification est annulée.This event typically occurs when a cell has been edited but the change has not been committed to the data cache, or when an edit operation is canceled.

Pour plus d’informations sur la façon de gérer les événements, consultez gestion et déclenchement d’événements.For more information about how to handle events, see Handling and Raising Events.

S’applique à

Voir aussi