DataRow.EndEdit 方法

定義

結束資料列上發生的編輯。Ends the edit occurring on the row.

public:
 void EndEdit();
public void EndEdit ();
member this.EndEdit : unit -> unit
Public Sub EndEdit ()

例外狀況

RowChanging 事件中呼叫該方法。The method was called inside the RowChanging event.

編輯中斷條件約束。The edit broke a constraint.

資料列屬於資料表,而且編輯嘗試變更唯讀資料行的值。The row belongs to the table and the edit tried to change the value of a read-only column.

編輯嘗試將 Null 值置於 AllowDBNull 為 False 的資料行。The edit tried to put a null value into a column where AllowDBNull is false.

範例

如果驗證函數傳回 true,則下列範例會使用 EndEdit 方法來結束 DataRow 值的編輯。The following example uses the EndEdit method to end the edit of a DataRow value if the validation function returns true.

   private void AcceptOrReject(DataRow row)
   {
       // Use a function to validate the row's values.
       // If the function returns true, end the edit;
       // otherwise cancel it.
       if(ValidateRow(row))
           row.EndEdit();
       else
           row.CancelEdit();
   }

   private bool ValidateRow(DataRow thisRow)
   {
       bool isValid = true; 
       // Insert code to validate the row values. 
       // Set the isValid variable.
       return isValid;
   }
 Private Sub AcceptOrReject(ByVal row As DataRow)
    ' Use a function to validate the row's values.
    ' If the function returns true, end the edit; 
    ' otherwise cancel it.
    If ValidateRow(row) Then
       row.EndEdit()
    Else
       row.CancelEdit()
    End If
End Sub
 
Private Function ValidateRow(ByVal row As DataRow) As Boolean
    Dim isValid As Boolean
    ' Insert code to validate the row values. 
    ' Set the isValid variable.
    ValidateRow = isValid
End Function

備註

當您設定屬性時,如果 RowChanging 事件中發生例外狀況,就會產生例外狀況。When you set the property, an exception is generated if an exception occurs in the RowChanging event.

適用於

另請參閱