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改变我对AsyncFileUpload的上传完成事件处理程序下面的代码:文本框的文本不会从upload_complete事件处理
Protected Sub AsyncFileUpload1_UploadedComplete(ByVal sender As Object, ByVal e As AjaxControlToolkit.AsyncFileUploadEventArgs) Handles AsyncFileUpload1.UploadedComplete
Dim oapp As Excel.Application
Dim oWBa As Excel.Workbook
Dim oWS As Excel.Worksheet
Dim oRng As Excel.Range
oapp = New Excel.Application
AsyncFileUpload1.PostedFile.SaveAs(Server.MapPath("tempfile2.xlsx"))
oWBa = oapp.Workbooks.Open(Server.MapPath("tempfile2.xlsx"))
oWS = DirectCast(oWBa.Worksheets(2),
Excel.Worksheet)
'Here tns is a textbox contained in a panel
tns.Text = Integer.Parse(oWS.Range("W44").Value) + Integer.Parse(oWS.Range("W55").Value)
oWBa.Close()
File.Delete(Server.MapPath("tempfile2.xlsx"))
End Sub
TNS的AutoPostBack属性被打开,为什么它不会改变它的文本文件时上传?另外,在阅读excel文件的逻辑中也没有错误,因为我使用VS 2010和Uptil tns.text进行了调试,我在手表中获得了正确的值。所以我该如何绕过它?
var resultString = Integer.Parse(oWS.Range("W44").Value) + Integer.Parse(oWS.Range("W55").Value);
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "result", "top.$get(\"" + tns.ClientID + "\").value = '" + resultString + "';", true);
P.S.:
Integer.Parse(oWS.Range(“W44”)。Value)+ Integer.Parse(oWS.Range(“W55” ).Value)总是返回一个值? –
@WaqarJanjua我不会为“总是”而烦恼。在我的情况下,它返回了正确的值。我在VS调试器手表中发现它。 – rahulserver
然后在您的其他页面上将其设置为空或空白。在你的网页上搜索tns.Text,可能你已经将它设置为tns.Text =“”或者null –