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if( ( File1.PostedFile != null ) && ( File1.PostedFile.ContentLength > 0 ) )
{
string fn = System.IO.Path.GetFileName(File1.PostedFile.FileName);
string SaveLocation = Server.MapPath("Data") + "\\" + fn;
try
{
File1.PostedFile.SaveAs(SaveLocation);
Response.Write("The file has been uploaded.");
}
catch ( Exception ex )
{
Response.Write("Error: " + ex.Message);
//Note: Exception.Message returns a detailed message that describes the current exception.
//For security reasons, we do not recommend that you return Exception.Message to end users in
//production environments. It would be better to put a generic error message.
}
}
else
{
Response.Write("Please select a file to upload.");
}
private void Submit1_ServerClick(object sender, System.EventArgs e)
{
if( ( File1.PostedFile != null ) && ( File1.PostedFile.ContentLength > 0 ) )
{
string fn = System.IO.Path.GetFileName(File1.PostedFile.FileName);
string SaveLocation = Server.MapPath("Data") + "\\" + fn;
try
{
File1.PostedFile.SaveAs(SaveLocation);
Response.Write("The file has been uploaded.");
}
catch ( Exception ex )
{
Response.Write("Error: " + ex.Message);
//Note: Exception.Message returns detailed message that describes the current exception.
//For security reasons, we do not recommend you return Exception.Message to end users in
//production environments. It would be better just to put a generic error message.
}
}
else
{
Response.Write("Please select a file to upload.");
}
}
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace CSharpUpload
{
/// <summary>
/// Summary description for WebForm1.
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.HtmlControls.HtmlInputFile File1;
protected System.Web.UI.HtmlControls.HtmlInputButton Submit1;
private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Submit1.ServerClick += new System.EventHandler(this.Submit1_ServerClick);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void Submit1_ServerClick(object sender, System.EventArgs e)
{
if( ( File1.PostedFile != null ) && ( File1.PostedFile.ContentLength > 0 ) )
{
string fn = System.IO.Path.GetFileName(File1.PostedFile.FileName);
string SaveLocation = Server.MapPath("Data") + "\\" + fn;
try
{
File1.PostedFile.SaveAs(SaveLocation);
Response.Write("The file has been uploaded.");
}
catch ( Exception ex )
{
Response.Write("Error: " + ex.Message);
//Note: Exception.Message returns a detailed message that describes the current exception.
//For security reasons, we do not recommend that you return Exception.Message to end users in
//production environments. It would be better to return a generic error message.
}
}
else
{
Response.Write("Please select a file to upload.");
}
}
}
}
During the upload process, ASP.NET loads the whole file in memory
before the user can save the file to the disk. Therefore, the process may
recycle because of thememoryLimit?? ???????processModeltag in the Machine.config file. ThememoryLimitattribute specifies the percentage of physical memory that the
ASP.NET worker process can exhaust before the process is automatically
recycled. Recycling prevents memory leaks from causing ASP.NET to crash or to
stop responding.
Additionally, other factors play a role in the
maximum file size that can be uploaded. ?? ???? ?????? ??????, ????? ????? ?????, ???????? ???, ?? ??????? ??????? ???????? ????? ??? ????? ?? ?? ??? ??????? ?? ?????? ??????? ?? ??? Microsoft ??????? ???? ?? 20 ???? ?? ??? 10 ?????????? (MB) ?? ?????? ??? ?????? ????? ???? ?? ?????? ??? ?? ???? ?? ??????? ?????, ?????? ????? ???? 100 MB ?? ???? ???
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