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 ÓÃAsp.NetÉÏ´«Îļþ,Ê×Óõ½µÄÊÇFileUpload¿Ø¼þ
<asp:FileUpload ID="FileUpload1" runat="server" /><br />
<asp:Button ID="btn" runat="server" Text="È·¶¨" OnClick="btn_Click"/>
C#´úÂë
protected void btn_Click(object sender, EventArgs e)
{
//ÅжÏÊÇ·ñÑ¡ÔñÁËÎļþ
if (this.FileUpload1.HasFile)
{
try{
//»ñÈ¡Îļþ
HttpPostedFile filename = this.FileUpload1.PostedFile;
//ÅжÏÎļþ´óС,×Ö½ÚΪµ¥Î»
if (filename.ContentLength>0)
{

FileUpload1.SaveAs(@"D:\" + FileUpload1.FileName);
s_alert("ÉÏ´«³É¹¦");
}
}
catch (Exception ex)
{
s_alert ("ÉÏ´«Ê§°Ü,³öÏÖ´íÎó");
}
}
else
{
s_alert("Ä㻹ûÓÐÑ¡ÔñÎļþ");
}
}
public static void s_alert(string str)
{
Page page = (Page)HttpContext.Current.Handler;
page.ClientScript.RegisterStartupScript(page.GetType(), Guid.NewGuid().ToString(), "alert('" + str + "');", true);
}