通过文件上传控件上传文件时在c#.net中重命名文件并将文件的更改名称保存在数据库中答案

【问题标题】：Rename file in c#.net when its is uploaded through file upload control and save chang name of file in database通过文件上传控件上传文件时在c#.net中重命名文件并将文件的更改名称保存在数据库中
【发布时间】：2013-08-08 08:49:54
【问题描述】：

我有文件上传器，我通过它浏览文件并在字符串变量中存储浏览文件的名称。现在我想用存储在另一个字符串变量中的另一个名称重命名这个上传文件名

string strRoleValue = ddlrole.SelectedValue;

 string strfilename = FileUpload1.FileName;
 string existpath = Server.MapPath("~\\JD\\");
 DirectoryInfo ObjSearchFile = new DirectoryInfo(existpath);
  string saveLocation = existpath + strfilename;
FileUpload1.SaveAs(saveLocation);

strRoleValue 此变量包含我想用来重命名通过 fileupload 上传的文件的名称。通过fileupload控件上传的文件名存储在strfilename中。所以在将此文件保存到指定文件夹之前我想用 strRoleValue 值重命名它。我怎样才能做到这一点..请帮助

【问题讨论】：

标签： asp.net database file-upload system file-rename

【解决方案1】：

您可以查看以下链接

http://asp-net-example.blogspot.in/2009/01/aspnet-fileupload-example-how-to-rename.html

<%@ Page Language="C#" %>  
<%@ Import Namespace="System.IO" %>  

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  

<script runat="server">  
    protected void Button1_Click(object sender, System.EventArgs e) {  
        string uploadFolder = Request.PhysicalApplicationPath + "UploadFile\\";  
        if (FileUpload1.HasFile)  
        {  
            string extension = Path.GetExtension(FileUpload1.PostedFile.FileName);  
            FileUpload1.SaveAs(uploadFolder + "Test"+ extension);  
            Label1.Text = "File uploaded successfully as: " + "Test"+ extension;  
        }  
        else  
        {  
            Label1.Text = "First select a file.";  
        }  
    }  
</script>  

<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>asp.net FileUpload example: how to rename file when upload (change file name when upload)</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <div>  
        <h2 style="color:Green">asp.net FileUpload example: File Rename</h2>  
        <asp:Label   
             ID="Label1"   
             runat="server"   
             Font-Size="Large"  
             ForeColor="OrangeRed"  
             >  
        </asp:Label>  
        <br /><br />  
        <asp:FileUpload   
             ID="FileUpload1"   
             runat="server"   
             BackColor="DeepPink"   
             ForeColor="AliceBlue"   
             />  
        <asp:Button   
             ID="Button1"   
             runat="server"   
             Font-Bold="true"   
             ForeColor="DeepPink"   
             OnClick="Button1_Click"  
             Text="Upload It"  
             />     
    </div>  
    </form>  
</body>  
</html>

【讨论】：

【解决方案2】：

<input name="fileUploadedButtonName" type="file" />

public ActionResult Register(HttpPostedFileBase fileUploadedButtonName){

 string newFileName= "";

 if (fileUploadedButtonName != null)
   {
     string path = HttpContext.Server.MapPath(@"~/YourFolderName");

     bool exists = System.IO.Directory.Exists(path);

     if (!exists)
        System.IO.Directory.CreateDirectory(path);

     string extension = Path.GetExtension(fileUploadedButtonName.FileName);
     newFileName= Guid.NewGuid() + extension;
     string filePath = Path.Combine(path, newFileName);
     fileUploadedButtonName.SaveAs(filePath);

   }

}

【讨论】：