Web.Config文件中:
<system.web>
<compilation defaultLanguage="vb" debug="true" />
<authentication mode="Forms">
<forms name="VB.ASPXAUTH" loginUrl="login.aspx" protection="All" path="/" />
</authentication>
<authorization>
<deny users="?" />
</authorization>
</system.web>
<system.web>
<compilation defaultLanguage="vb" debug="true" />
<authentication mode="Forms">
<forms name="VB.ASPXAUTH" loginUrl="login.aspx" protection="All" path="/" />
</authentication>
<authorization>
<deny users="?" />
</authorization>
</system.web>
Session["user"] = username;if(Session["user"]) == null
Response.Redirect("index.aspx");
{
if(Session["UserName"]!=null)
{
....
}
else
Response.Redirect("errro.aspx");
}