关于HtmlInputFile控件上传文件

[Figgo]

为什么设定了
file1.MaxLength=1024;
file1.Accept="application/pdf";
没有作用

==================
<form id="Form" enctype="multipart/form-data" method="post" runat="server">
<input type="file" id="file1" runat="server">
<asp:Button ID="sumbit" Text="submit" Runat="server" />
</form>

=========================

protected System.Web.UI.WebControls.Button sumbit;
protected System.Web.UI.HtmlControls.HtmlInputFile file1;
private void Page_Load(object sender, System.EventArgs e)
{

file1.MaxLength=1024; //??没作用??
file1.Accept="application/pdf"; //??没作用??
if(Page.IsPostBack)
{
System.Web.HttpPostedFile postedFile1=Request.Files["file1"];
postedFile1.SaveAs("e:\\temp\\test.bak");
}
}
======================================

[Figgo]

每人知道吗？？
up

[sjtstar]

试一试这个：
string fileextend=".pdf";
string ss=Path.GetExtension(file1.PostedFile.FileName);
if(fileextend.IndexOf(ss)==-1)
return;