ListObjectChangeHandler 委派
表示處理 ListObject 的 Change 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 ListObjectChangeHandler ( _
targetRange As Range, _
changedRanges As ListRanges _
)
public delegate void ListObjectChangeHandler(
Range targetRange,
ListRanges changedRanges
)
參數
- targetRange
型別:Microsoft.Office.Interop.Excel.Range
發生變更的 Range。
- changedRanges
型別:Microsoft.Office.Tools.Excel.ListRanges
包含變更的 ListObject 區域。
備註
在建立 ListObjectChangeHandler 委派 (Delegate) 時,您要識別處理事件的方法。若要讓此事件與您的事件處理常式產生關聯,請將委派的執行個體加入至此事件。除非您移除委派,否則每當事件發生時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 ListObject 和 Change 事件處理常式。若要引發 Change 事件,請將文字加入至 ListObject 中的一個儲存格,然後按 ENTER 鍵。
WithEvents ChangeList As Microsoft.Office.Tools.Excel.ListObject
Private Sub ListObject_Change()
ChangeList = Me.Controls.AddListObject( _
Me.Range("A1", "C4"), "ChangeList")
End Sub
Sub List1_Change(ByVal targetRange As _
Microsoft.Office.Interop.Excel.Range, _
ByVal changedRanges As Microsoft.Office.Tools.Excel.ListRanges) _
Handles ChangeList.Change
Dim cellAddress As String = targetRange.Address( _
ReferenceStyle:=Excel.XlReferenceStyle.xlA1)
Select Case changedRanges
Case Microsoft.Office.Tools.Excel.ListRanges.DataBodyRange
MsgBox("The cells at range " & cellAddress & _
" in the data body changed.")
Case Microsoft.Office.Tools.Excel.ListRanges.HeaderRowRange
MsgBox("The cells at range " & cellAddress & _
" in the header row changed.")
Case Microsoft.Office.Tools.Excel.ListRanges.TotalsRowRange
MsgBox("The cells at range " & cellAddress & _
" in the totals row changed.")
Case Else
MsgBox("The cells at range " & cellAddress & _
" changed.")
End Select
End Sub
private void ListObject_Change()
{
Microsoft.Office.Tools.Excel.ListObject list1 =
this.Controls.AddListObject(
this.Range["A1", "C4"], "list1");
list1.Change += new Microsoft.Office.Tools.Excel.
ListObjectChangeHandler(list1_Change);
}
void list1_Change(Microsoft.Office.Interop.Excel.Range
targetRange, Microsoft.Office.Tools.Excel.ListRanges
changedRanges)
{
string cellAddress = targetRange.get_Address(
Excel.XlReferenceStyle.xlA1
);
switch (changedRanges)
{
case Microsoft.Office.Tools.Excel.ListRanges.DataBodyRange:
MessageBox.Show("The cells at range " + cellAddress +
" in the data body changed.");
break;
case Microsoft.Office.Tools.Excel.ListRanges.HeaderRowRange:
MessageBox.Show("The cells at range " + cellAddress +
" in the header row changed.");
break;
case Microsoft.Office.Tools.Excel.ListRanges.TotalsRowRange:
MessageBox.Show("The cells at range " + cellAddress +
" in the totals row changed.");
break;
default:
MessageBox.Show("The cells at range " + cellAddress +
" changed.");
break;
}
}