BeforeAddDataBoundRowEventHandler 委派

表示處理 ListObject 的 BeforeAddDataBoundRow 事件的方法。

命名空間：  Microsoft.Office.Tools.Excel
組件：  Microsoft.Office.Tools.Excel (在 Microsoft.Office.Tools.Excel.dll 中)

語法

'宣告
Public Delegate Sub BeforeAddDataBoundRowEventHandler ( _
    sender As Object, _
    e As BeforeAddDataBoundRowEventArgs _
)

public delegate void BeforeAddDataBoundRowEventHandler(
    Object sender,
    BeforeAddDataBoundRowEventArgs e
)

參數

• sender
  型別：System.Object
  事件的來源。

• e
  型別：Microsoft.Office.Tools.Excel.BeforeAddDataBoundRowEventArgs
  包含事件資料的 BeforeAddDataBoundRowEventArgs。

備註

在建立 BeforeAddDataBoundRowEventHandler 委派 (Delegate) 時，您要識別處理事件的方法。 若要使事件與您的事件處理常式產生關聯，請將委派的執行個體 (Instance) 加入至事件。 在您移除該委派之前，每當事件發生，就會呼叫事件處理常式。 如需委派的詳細資訊，請參閱事件和委派。

範例

下列程式碼範例會建立 DataTable 和 ListObject，並將 ListObject 繫結至 DataTable。 接著會建立一個 BeforeAddDataBoundRow 事件處理常式，用來取消加入新資料列。 若要測試此事件，請以手動方式加入一個新資料列至工作表 1 上的 ListObject。

這是示範文件層級自訂的範例。

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

    ' 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.
    BeforeAddDataBoundRowList = _
        Me.Controls.AddListObject(Me.Range("A1"), _
        "BeforeAddDataBoundRowList")

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


Private Sub List1_BeforeAddDataBoundRow(ByVal sender As Object, _
    ByVal e As Microsoft.Office.Tools.Excel.BeforeAddDataBoundRowEventArgs) _
    Handles BeforeAddDataBoundRowList.BeforeAddDataBoundRow
    e.Cancel = True
    MessageBox.Show("This data is read-only.")

End Sub

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

    // 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.BeforeAddDataBoundRow += new 
        Microsoft.Office.Tools.Excel.
        BeforeAddDataBoundRowEventHandler(
        list1_BeforeAddDataBoundRow);
}

void list1_BeforeAddDataBoundRow(object sender, 
    Microsoft.Office.Tools.Excel.BeforeAddDataBoundRowEventArgs e)
{
    e.Cancel = true;
    MessageBox.Show("This data is read-only.");
}

請參閱

參考

Microsoft.Office.Tools.Excel 命名空間