DataGridViewCellValidatingEventArgs.RowIndex Eigenschaft

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Ruft den Zeilenindex der zu überprüfenden Zelle ab.

public:
 property int RowIndex { int get(); };

public int RowIndex { get; }

member this.RowIndex : int

Public ReadOnly Property RowIndex As Integer

Eigenschaftswert

Int32

Eine nullbasierte ganze Zahl, die den Zeilenindex der zu überprüfenden Zelle angibt.

Beispiele

Im folgenden Codebeispiel wird die Verwendung dieser Eigenschaft veranschaulicht. Dieses Beispiel ist Teil eines größeren Beispiels, das unter How to: Validate Data in the Windows Forms DataGridView-Steuerelement verfügbar ist.

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

Weitere Informationen

• DataGridView
• CellValidating
• DataGridViewCell
• ColumnIndex