更新面板中的文件上载 [英] File Upload in Update Panel

问题描述

Dim strfile As String = Upload_Certificate.FileName

           If Upload_Certificate.FileName <> String.Empty Then
               Upload_Certificate.PostedFile.SaveAs(Server.MapPath("~/AttachedFile/") & Upload_Certificate.FileName)
           End If

在此代码中，Upload_Certificate.FileName不返回值

In this code Upload_Certificate.FileName does not return value

推荐答案

可能你应该使用 AJAX触发器 [ ^ ]，检查出来

Probably you should use AJAX Triggers[^], check it out

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