Содержание

1 FileUpload Control
2 FileUpload Control
- 2.1 Get file name
3 Upload File
- 3.1 Uploads to a special upload folder

FileUpload Control

   <source lang="csharp">

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Default_aspx" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">

   <title>FileUpload Control</title>

</head> <body>

   <form id="form1" runat="server">

FileUpload Control

    <asp:FileUpload ID="FileUpload1" runat="server" />
    

    <asp:Button ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click" />
    <asp:Button ID="btnDisplay" runat="server" Text="Display" OnClick="btnDisplay_Click" />
    

    

    <asp:Label ID="lblMessage" runat="server" />
    <asp:Label ID="lblDisplay" runat="server" />

   </form>

</body> </html> File: Default.aspx.cs using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.IO; public partial class Default_aspx : System.Web.UI.Page {

 protected void btnSave_Click(object sender, EventArgs e){
    string str = "";
    if (FileUpload1.HasFile) {
      try {
        str += "Uploading file: " + FileUpload1.FileName;
        FileUpload1.SaveAs("c:\\" + FileUpload1.FileName);
        str += "
Saved As: " + FileUpload1.PostedFile.FileName;
        str += "
File Type: " + FileUpload1.PostedFile.ContentType;
        str += "
File Length (bytes): " + FileUpload1.PostedFile.ContentLength;
        str += "
PostedFile File Name: " + FileUpload1.PostedFile.FileName;
      } catch (Exception ex) {
        str += "
Error
Unable to save c:\\" + FileUpload1.FileName + "
" + ex.Message;
      }
    } else {
      str = "No file uploaded.";
    }
    lblMessage.Text = str;
    lblDisplay.Text = "";
  }
 protected void btnDisplay_Click(object sender, EventArgs e)
 {
   string str = "File:  " + FileUpload1.FileName + "
";  
   if (FileUpload1.HasFile)
   {
     try
     {
       Stream stream = FileUpload1.FileContent;
       StreamReader reader = new StreamReader(stream);
       string strLine = "";
       do
       {
         strLine = reader.ReadLine();
         str += strLine;
       } while (strLine != null);
     }
     catch (Exception ex)
     {
       str += "
Error
Unable to display " + FileUpload1.FileName + "
" + ex.Message;
     }
   }
   else
   {
     str = "No file uploaded.";
   }
   lblDisplay.Text = str;
   lblMessage.Text = "";
 }

}

</source>

Get file name

   <source lang="csharp">

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="FileUpload" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">

   <title>Untitled Page</title>

</head> <body>

   <form id="form1" runat="server">

Upload File

       <asp:FileUpload ID="fupAspNetUpload" runat="server" />
       

       

       <asp:Button ID="btnUpload" runat="server" OnClick="btnUpload_Click" Text="Upload" />

   </form>

</body> </html> File: Default.aspx.cs using System; using System.Configuration; using System.Collections; using System.Data; using System.IO; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class FileUpload : System.Web.UI.Page {

   protected void btnUpload_Click(object sender, EventArgs e)
   {
       string htmlFilePath = fupHtmlUpload.PostedFile.FileName;
       string aspNetFilePath = fupAspNetUpload.PostedFile.FileName;
       string filePath = fupAspNetUpload.FileName;
       string fileName = Path.rubine(Server.MapPath("."), filePath);
       fupAspNetUpload.SaveAs(fileName);
   }

}

</source>

Uploads to a special upload folder

   <source lang="csharp">

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="Default_aspx" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">

   <title>Untitled Page</title>

</head> <body>

   <form id="form1" runat="server">

       <asp:FileUpload ID="FileUpload1" runat="server" />
       

       <asp:Button ID="btnSubmit" runat="server" Text="Submit"  OnClick="Submit_Click" />

   </form>

</body> </html> File: Default.aspx.vb

Partial Class Default_aspx

   Inherits System.Web.UI.Page
   Protected Sub Submit_Click(ByVal sender As Object, ByVal e As System.EventArgs)
       Dim savePath As String = Request.PhysicalApplicationPath
       savePath += "uploads\"
       If FileUpload1.HasFile Then " verify if there is file to upload
           savePath += FileUpload1.FileName
           " existing file will be overwritten
           FileUpload1.SaveAs(savePath)
           Response.Write("File uploaded successfully!")
       Else
           Response.Write("No file to upload")
       End If
   End Sub

End Class

</source>

ASP.Net/Asp Control/FileUpload

Содержание