Bagikan melalui

HtmlInputFile.PostedFile Properti

Definisi

Ruang nama:
System.Web.UI.HtmlControls
Rakitan:
System.Web.dll

Mendapatkan akses ke file yang diunggah yang ditentukan oleh klien.

public:
 property System::Web::HttpPostedFile ^ PostedFile { System::Web::HttpPostedFile ^ get(); };
public System.Web.HttpPostedFile PostedFile { get; }
member this.PostedFile : System.Web.HttpPostedFile
Public ReadOnly Property PostedFile As HttpPostedFile

Nilai Properti

HttpPostedFile

Yang HttpPostedFile mengakses file yang akan diunggah.

Contoh

Contoh kode berikut menunjukkan cara menggunakan PostedFile properti untuk memulai utilitas yang mentransfer file ke server. Perhatikan bahwa jika ukuran file yang diunggah dalam byte melebihi nilai ContentLength properti , file tidak diunggah. Agar contoh ini berfungsi dengan baik, Anda perlu membuat direktori yang dipanggil Temp di drive C komputer Anda.

<%@ Page Language="C#" AutoEventWireup="True" %>

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

  void Button1_Click(object Source, EventArgs e)
  {

    // Make sure a file was submitted.
    if (Text1.Value == "")
    {
      
      Span1.InnerHtml = "Error: You must enter a file name.";
      return;
      
    }

    // Save the file.
    if (File1.PostedFile.ContentLength > 0)
    {
      try
      {
        
        File1.PostedFile.SaveAs("c:\\temp\\" + Text1.Value);
        Span1.InnerHtml = "File uploaded successfully to <b>c:\\temp\\" +
                           Text1.Value + "</b> on the Web server.";
        
      }
      catch (Exception exc)
      {
        
        Span1.InnerHtml = "Error saving file <b>c:\\temp\\" +
                           Text1.Value + "</b><br />" + exc.ToString() + ".";
        
      }
      
    }
    
  }
 
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head>
    <title>HtmlInputFile Example</title>
  </head>
 
  <body>
 
    <h3>HtmlInputFile Example</h3>
 
    <form id="form1" enctype="multipart/form-data" 
          runat="server">
 
       Select File to Upload: 
       <input id="File1" 
              type="file"
              runat="server"/>
 
       <p>
       Save as file name (no path): 
       <input id="Text1" 
              type="text" 
              runat="server"/>
 
       </p>
       <p>
       <span id="Span1" 
             style="font: 8pt verdana;" 
             runat="server" />
 
       </p>
       <p>
       <input type="button" 
              id="Button1" 
              value="Upload" 
              onserverclick="Button1_Click" 
              runat="server" />

       </p>

    </form>
 
  </body>
</html>

<%@ Page Language="VB" AutoEventWireup="True" %>

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

  Sub Button1_Click(ByVal Source As Object, ByVal e As EventArgs)
        
    ' Make sure a file was submitted.
    If Text1.Value = "" Then
      
      Span1.InnerHtml = "Error: You must enter a file name."
      Return
      
    End If
        
    ' Save the file.
    If File1.PostedFile.ContentLength > 0 Then
      Try
        
        File1.PostedFile.SaveAs(("c:\temp\" & Text1.Value))
        Span1.InnerHtml = "File uploaded successfully to <b>c:\temp\" & _
                           Text1.Value & "</b> on the Web server."
        
      Catch exc As Exception
        
        Span1.InnerHtml = "Error saving file <b>c:\temp\" & _
                           Text1.Value & "</b><br />" & exc.ToString() + "."
        
      End Try
      
    End If
    
  End Sub
 
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head>
    <title>HtmlInputFile Example</title>
  </head>
 
  <body>
 
    <h3>HtmlInputFile Example</h3>
 
    <form id="form1" enctype="multipart/form-data" 
          runat="server">
 
       Select File to Upload: 
       <input id="File1" 
              type="file"
              runat="server"/>
 
       <p>
       Save as file name (no path): 
       <input id="Text1" 
              type="text" 
              runat="server"/>
 
       </p>
       <p>
       <span id="Span1" 
             style="font: 8pt verdana;" 
             runat="server" />
 
       </p>
       <p>
       <input type="button" 
              id="Button1" 
              value="Upload" 
              onserverclick="Button1_Click" 
              runat="server" />

       </p>

    </form>
 
  </body>
</html>

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