带有覆盖确认的文件上传 [英] File upload with overwrite confirmation
本文介绍了带有覆盖确认的文件上传的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用fileupload()
将文件上传到文件夹.
我希望能够检查上传文件夹中是否已存在该文件,并询问用户是否要覆盖现有文件.
我该怎么办?
Hi,
I am using fileupload()
for uploading files to a folder.
I want to be able to check if the file already exists in the upload folder and ask the user if wants to overwrite the existing file.
How can I do this?
public void UploadExcel()
{
if (FileUpload1.HasFile)
{
try
{
string folder_from_config = ConfigurationManager.AppSettings["FileUploadFolder"].ToString();
FileUpload1.SaveAs(Server.MapPath(folder_from_config) + "\\" + System.IO.Path.GetFileName(FileUpload1.FileName));
Session["Input_Data_Excel_File"] =Server.MapPath((folder_from_config) + "\\" + System.IO.Path.GetFileName(FileUpload1.FileName));
}
catch (Exception ex)
{
// errormsg.Text += "ERROR: " + ex.Message.ToString();
}
}
else
{
}}
推荐答案
一个带有"asp.net文件上传并覆盖确认信息"的Google给了我;
http://forums.asp.net/t/1197474.aspx/1 [ ^ ]
该线程显示了实现此目标的不同方法.
A google with "asp.net file upload with overwrite confirmation" gave me;
http://forums.asp.net/t/1197474.aspx/1[^]
The thread shows different ways of achieving this.
尝试
带有覆盖消息的ASP.NET文件上载器 [上传了带有覆盖确认的Asp.net文件 [
Try
ASP.NET File Uploader with Overwrite Message[^]
Asp.net file upload with overwrite confirmation[^]
相信我,我在 ^ ]
上传具有覆盖确认信息的Asp.net文件 [带有覆盖消息的ASP.NET文件上载器 [
Believe me I got these in first page of Google Search[^]
Asp.net file upload with overwrite confirmation[^]
ASP.NET File Uploader with Overwrite Message[^]
这篇关于带有覆盖确认的文件上传的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文