I tried to search for the problem in the internet and I see everyone is asking about the problem for FileUpload control inside the UpdatePanel. First of all, I am not using an UpdatePanel. Below is my code:
HTML
<head runat="server"> <title></title> </head> <body> <form id="form1" method="post" runat="server" enctype="multipart/form-data"> <div> <asp:FileUpload ID="fuImport" runat="server" /> <asp:Button ID="btnImport" runat="server" Text="Import" /> </div> </form> </body> </html>
Code Behind
Protected Sub btnImport_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnImport.Click If (fuImport.HasFile) Then fuImport.SaveAs(My.Settings.FileImportPath & Path.GetFileName(fuImport.FileName)) End If End Sub
I see that fuImport.HasFile is False, but fuImport.FileName gives just the file name. For e.g., if I choose c:1.txt, it gives just "1.txt". Can anybody let me know why fuImport.HasFile is False though I have chosen a file?
解决方案
I found the answer. The txt file I was uploading was empty. I edited the text file and then saved by typing something in it. I could not find this anywhere mentioned in the msdn or I am not sure whether I was looking at a wrong place. The suggestion by Kasys in this post helped me.
我试图寻找在互联网上的问题，我看到每个人都在问的UpdatePanel内FileUpload控件的问题。首先，我不使用一个UpdatePanel。下面是我的code：
HTML
＆LT;头=服务器＆GT; ＆LT;标题＆GT;＆LT; /标题＆GT; ＆LT; /头＆GT; ＆LT;身体GT; ＆LT;表ID =Form1的方法=邮报=服务器ENCTYPE =的multipart / form-data的＆GT; ＆LT; DIV＆GT; ＆LT; ASP：文件上传ID =fuImport=服务器/＆GT; ＆LT; ASP：按钮的ID =btnImport=服务器文本=输入/＆GT; ＆LT; / DIV＆GT; ＆LT; /表及GT; ＆LT; /身体GT; ＆LT; / HTML＆GT;
code背后
保护小组btnImport_Click（BYVAL发件人为对象，BYVAL E上EventArgs的）把手btnImport.Click 如果（fuImport.HasFile）然后 fuImport.SaveAs（My.Settings.FileImportPath＆安培; Path.GetFileName（fuImport.FileName）） 万一 结束小组
我看到fuImport.HasFile是假的，但fuImport.FileName只给出文件名。对于例如，如果我选择 C：\ 1.txt的，它给刚的1.txt。
任何人都可以让我知道为什么fuImport.HasFile是假，虽然我已经选择了一个文件？
解决方案
我找到了答案。 txt文件，我上传是空的。我编辑的文本文件，然后通过键入它的东西保存。我找不到在MSDN提到这在任何地方或我不知道我是否一直在寻找在错误的地方。通过Kasys在的建议这篇文章帮助了我。