ListObject.ErrorAddDataBoundRow (Evento) (2007 System)

Actualización: Julio de 2008

Se produce cuando un usuario intenta agregar una fila a un control ListObject enlazado a datos, pero no se puede agregar la fila.

Espacio de nombres:  Microsoft.Office.Tools.Excel
Ensamblado:  Microsoft.Office.Tools.Excel.v9.0 (en Microsoft.Office.Tools.Excel.v9.0.dll)

Sintaxis

Public Event ErrorAddDataBoundRow As ErrorAddDataBoundRowEventHandler

Dim instance As ListObject
Dim handler As ErrorAddDataBoundRowEventHandler

AddHandler instance.ErrorAddDataBoundRow, handler

public event ErrorAddDataBoundRowEventHandler ErrorAddDataBoundRow

Comentarios

Se provoca este evento sólo si el control ListObject se enlaza a los datos.

Controle este evento para intentar corregir posibles errores.

Ejemplos

El ejemplo de código siguiente crea DataTable y ListObject, y enlaza el control ListObject al control DataTable. A continuación, crea un controlador del evento ErrorAddDataboundRow(). Para probar el evento, agregue una nueva fila a ListObject de forma manual y escriba el apellido "Chan" y un nombre. El controlador de eventos muestra un mensaje.

Se trata de una versión para una personalización en el nivel del documento.

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.");
}

Se trata de una versión para un complemento en el nivel de la aplicación. Para usar este ejemplo, agregue la directiva using System.Data; si utiliza C# o la instrucción Imports System.Data si utiliza 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 vstoWorksheet As Worksheet = CType( _
        Me.Application.ActiveWorkbook.Worksheets(1),  _
        Excel.Worksheet).GetVstoObject()
    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 = ((Excel.Worksheet)
        this.Application.ActiveWorkbook.Worksheets[1]).GetVstoObject();
    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.");
}

Permisos

• Plena confianza para el llamador inmediato. Un código de confianza parcial no puede utilizar este miembro. Para obtener más información, vea Utilizar bibliotecas de código que no es de plena confianza.

Vea también

Referencia

ListObject (Clase)

ListObject (Miembros)

Microsoft.Office.Tools.Excel (Espacio de nombres)

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