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ListObject.ErrorAddDataBoundRow, événement

Se produit lorsqu'un utilisateur essaie d'ajouter une ligne à un contrôle ListObject lié aux données, mais que la ligne ne peut pas être ajoutée.

Espace de noms :  Microsoft.Office.Tools.Excel
Assembly :  Microsoft.Office.Tools.Excel (dans Microsoft.Office.Tools.Excel.dll)

Syntaxe

'Déclaration
Event ErrorAddDataBoundRow As ErrorAddDataBoundRowEventHandler
event ErrorAddDataBoundRowEventHandler ErrorAddDataBoundRow

Notes

Cet événement est déclenché uniquement si le contrôle ListObject est lié aux données.

Gérez cet événement pour essayer de corriger les erreurs éventuelles.

Exemples

L'exemple de code suivant crée un DataTable et un ListObject, et lie ListObject à DataTable. Il crée ensuite un gestionnaire d'événements ErrorAddDataBoundRow. Pour tester l'événement, ajoutez manuellement une nouvelle ligne à ListObject et entrez le nom de famille « Chan » et un prénom. Le gestionnaire d'événements affiche un message.

Cette version est destinée à une personnalisation au niveau du document.

    WithEvents ErrorAddDataBoundRowList As _
        Microsoft.Office.Tools.Excel.ListObject
    Private Sub ListObject_ErrorAddDataBoundRow()
        ' Create a new DataSet and DataTable.
        Dim ds As New DataSet()
        Dim dt As DataTable = ds.Tables.Add("Customers")
        Dim lastName As New DataColumn("LastName")
        dt.Columns.Add(lastName)
        dt.Columns.Add(New DataColumn("FirstName"))

        Dim myUC As New UniqueConstraint("CustConstraint", _
            lastName)
        dt.Constraints.Add(myUC)

        ' Add a new row to the DataTable.
        Dim dr As DataRow = dt.NewRow()
        dr("LastName") = "Chan"
        dr("FirstName") = "Gareth"
        dt.Rows.Add(dr)

        ' Create a list object.
        ErrorAddDataBoundRowList = _
            Me.Controls.AddListObject(Me.Range("A1"), _
            "ErrorAddDataBoundRowList")

        ' Bind the list object to the DataTable.
        ErrorAddDataBoundRowList.AutoSetDataBoundColumnHeaders = True
        ErrorAddDataBoundRowList.SetDataBinding(ds, "Customers", _
            "LastName", "FirstName")
    End Sub


    Private Sub List1_ErrorAddDataBoundRow(ByVal sender As Object, _
        ByVal e As Microsoft.Office.Tools.Excel.ErrorAddDataBoundRowEventArgs) _
        Handles ErrorAddDataBoundRowList.ErrorAddDataBoundRow
        MessageBox.Show("Last names must be unique.")

    End Sub

private void ListObject_ErrorAddDataBoundRow()
{
    // Create a new DataSet and DataTable.
    DataSet ds = new DataSet();
    DataTable dt = ds.Tables.Add("Customers");
    DataColumn lastName = new DataColumn("LastName");
    dt.Columns.Add(lastName);
    dt.Columns.Add(new DataColumn("FirstName"));

    UniqueConstraint myUC = new UniqueConstraint( "CustConstraint", 
        lastName);
    dt.Constraints.Add(myUC);

    // Add a new row to the DataTable.
    DataRow dr = dt.NewRow();
    dr["LastName"] = "Chan";
    dr["FirstName"] = "Gareth";
    dt.Rows.Add(dr);

    // Create a list object.
    Microsoft.Office.Tools.Excel.ListObject list1 = 
        this.Controls.AddListObject(
        this.Range["A1", missing], "list1");

    // Bind the list object to the DataTable.
    list1.AutoSetDataBoundColumnHeaders = true;
    list1.SetDataBinding(ds, "Customers", "LastName",
        "FirstName");

    // Create the event handler.
    list1.ErrorAddDataBoundRow += new 
        Microsoft.Office.Tools.Excel.
        ErrorAddDataBoundRowEventHandler(list1_ErrorAddDataBoundRow);
}

void list1_ErrorAddDataBoundRow(object sender, 
    Microsoft.Office.Tools.Excel.ErrorAddDataBoundRowEventArgs e)
{
    MessageBox.Show("Last names must be unique.");
}

Cette version est destinée à un complément d'application. Pour utiliser cet exemple de code, ajoutez la directive using System.Data; si vous utilisez C# ou l'instruction Imports System.Data si vous utilisez Visual Basic.

WithEvents ErrorAddDataBoundRowList As ListObject
Private Sub ListObject_ErrorAddDataBoundRow()
    ' Create a new DataSet and DataTable.
    Dim ds As New DataSet()
    Dim dt As DataTable = ds.Tables.Add("Customers")
    Dim lastName As New DataColumn("LastName")
    dt.Columns.Add(lastName)
    dt.Columns.Add(New DataColumn("FirstName"))

    Dim myUC As New UniqueConstraint("CustConstraint", _
        lastName)
    dt.Constraints.Add(myUC)

    ' Add a new row to the DataTable.
    Dim dr As DataRow = dt.NewRow()
    dr("LastName") = "Chan"
    dr("FirstName") = "Gareth"
    dt.Rows.Add(dr)

    ' Create a list object.
    Dim NativeWorksheet As Microsoft.Office.Interop.Excel.Worksheet =
        Me.Application.Worksheets(1)
    Dim vstoWorksheet As Microsoft.Office.Tools.Excel.Worksheet =
            Globals.Factory.GetVstoObject(NativeWorksheet)
    ErrorAddDataBoundRowList = _
        vstoWorksheet.Controls.AddListObject(vstoWorksheet.Range("A1"), _
        "ErrorAddDataBoundRowList")

    ' Bind the list object to the DataTable.
    ErrorAddDataBoundRowList.AutoSetDataBoundColumnHeaders = True
    ErrorAddDataBoundRowList.SetDataBinding(ds, "Customers", _
        "LastName", "FirstName")
End Sub


Private Sub List1_ErrorAddDataBoundRow(ByVal sender As Object, _
    ByVal e As Microsoft.Office.Tools.Excel.ErrorAddDataBoundRowEventArgs) _
    Handles ErrorAddDataBoundRowList.ErrorAddDataBoundRow
    System.Windows.Forms.MessageBox.Show("Last names must be unique.")

End Sub
private void ListObject_ErrorAddDataBoundRow()
{
    // Create a new DataSet and DataTable.
    DataSet ds = new DataSet();
    DataTable dt = ds.Tables.Add("Customers");
    DataColumn lastName = new DataColumn("LastName");
    dt.Columns.Add(lastName);
    dt.Columns.Add(new DataColumn("FirstName"));

    UniqueConstraint myUC = new UniqueConstraint("CustConstraint",
        lastName);
    dt.Constraints.Add(myUC);

    // Add a new row to the DataTable.
    DataRow dr = dt.NewRow();
    dr["LastName"] = "Chan";
    dr["FirstName"] = "Gareth";
    dt.Rows.Add(dr);

    // Create a list object.
    Worksheet vstoWorksheet =
        Globals.Factory.GetVstoObject(this.Application.ActiveWorkbook.Worksheets[1]);
    ListObject list1 =
        vstoWorksheet.Controls.AddListObject(
        vstoWorksheet.Range["A1", missing], "list1");

    // Bind the list object to the DataTable.
    list1.AutoSetDataBoundColumnHeaders = true;
    list1.SetDataBinding(ds, "Customers", "LastName",
        "FirstName");

    // Create the event handler.
    list1.ErrorAddDataBoundRow += new
        ErrorAddDataBoundRowEventHandler(list1_ErrorAddDataBoundRow);
}

void list1_ErrorAddDataBoundRow(object sender,
    Microsoft.Office.Tools.Excel.ErrorAddDataBoundRowEventArgs e)
{
    System.Windows.Forms.MessageBox.Show("Last names must be unique.");
}

Sécurité .NET Framework

Voir aussi

Référence

ListObject Interface

Microsoft.Office.Tools.Excel, espace de noms