並未將物件參考設定為物件的執行個體

[c_richard]

Sub DataList_UpdateCommand(sender As object, e As DataListCommandEventArgs)
行 52: Dim tb01n As string = CType(e.Item.FindControl("sys04a01n"), TextBox).Text
行 53: Dim tb02i As string = Ctype(e.Item.FindControl("sys04a02i"), TextBox).Text
行 54: Dim tb03n As string= Ctype(e.Item.FindControl("sys04a03n"), TextBox).Text
Dim strSQL As string = "Update sys04a Set sys04a01n='" & tb01n & "',sys04a02i='" & tb02i & "',sys04a03n='" & tb03n & "' Where " & myDataList.DataKeyField & "=" & myDataList.DataKeys(e.Item.ItemIndex) & ""
ExecuteSQL(strSQL)
myDataList.EditItemIndex = -1
BindList()
End Sub

原始程式檔: D:\eup\manage_page.aspx 行: 52

堆疊追蹤:


[NullReferenceException: 並未將物件參考設定為物件的執行個體]
ASP.manage_page_aspx.DataList_UpdateCommand(Object sender, DataListCommandEventArgs e) in D:\eup\manage_page.aspx:52
System.Web.UI.WebControls.DataList.OnUpdateCommand(DataListCommandEventArgs e) +109
System.Web.UI.WebControls.DataList.OnBubbleEvent(Object source, EventArgs e) +294
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +26