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DataGridViewCellValidatingEventArgs.ColumnIndex Propriété

Définition

Obtient l'index de colonne de la cellule à valider.

public:
 property int ColumnIndex { int get(); };
public int ColumnIndex { get; }
member this.ColumnIndex : int
Public ReadOnly Property ColumnIndex As Integer

Valeur de propriété

Int32

Entier de base zéro qui spécifie l'index de colonne de la cellule à valider.

Exemples

L’exemple de code suivant illustre l’utilisation de cette propriété. Cet exemple fait partie d’un exemple plus large disponible dans How to: Validate Data in the Windows Forms DataGridView Control.

private void dataGridView1_CellValidating(object sender,
    DataGridViewCellValidatingEventArgs e)
{
    string headerText = 
        dataGridView1.Columns[e.ColumnIndex].HeaderText;

    // Abort validation if cell is not in the CompanyName column.
    if (!headerText.Equals("CompanyName")) return;

    // Confirm that the cell is not empty.
    if (string.IsNullOrEmpty(e.FormattedValue.ToString()))
    {
        dataGridView1.Rows[e.RowIndex].ErrorText =
            "Company Name must not be empty";
        e.Cancel = true;
    }
}

void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
    // Clear the row error in case the user presses ESC.   
    dataGridView1.Rows[e.RowIndex].ErrorText = String.Empty;
}
Private Sub dataGridView1_CellValidating(ByVal sender As Object, _
    ByVal e As DataGridViewCellValidatingEventArgs) _
    Handles dataGridView1.CellValidating

    Dim headerText As String = _
        dataGridView1.Columns(e.ColumnIndex).HeaderText

    ' Abort validation if cell is not in the CompanyName column.
    If Not headerText.Equals("CompanyName") Then Return

    ' Confirm that the cell is not empty.
    If (String.IsNullOrEmpty(e.FormattedValue.ToString())) Then
        dataGridView1.Rows(e.RowIndex).ErrorText = _
            "Company Name must not be empty"
        e.Cancel = True
    End If
End Sub

Private Sub dataGridView1_CellEndEdit(ByVal sender As Object, _
    ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
    Handles dataGridView1.CellEndEdit

    ' Clear the row error in case the user presses ESC.   
    dataGridView1.Rows(e.RowIndex).ErrorText = String.Empty

End Sub

S’applique à

Voir aussi