Premise preparation conditions:
1. You have to have 2 TextBox controls, one to lose your password, one is used to lose username, but I don't think that these are required.
2. You have a RadiobuttonList control to set the cookie's survival time. About internal depends is: year y, month m, week W, day D, browser process P.
3. Ok, now you can embed the following code in the page PageLoad:
Note: It is said that in ASP.NET, there is no built-in setting FOCUS, please use the JavaScript control name. Focus implementation
Public void check (system.web.ui.webcontrols.textbox tb, system.web.ui.webcontrols.radiobuttonlist video)
{
HTTPCOOKIE HC = Request.Cookies ["TestCookie"];
IF (hc! = null)
Tb.Text = Hc.Value;
Else
{
HC = New httpcookie ("TestCookie", TB.Text);
DateTime DT = datetime.now;
Timespan TS = New Timespan (365, 0, 0);
IF (choise.selecteditem.value == "y")
Ts = new timeespan (365, 0, 0);
Else if (choise.selecteditem.value == "m")
TS = New TimeSpan (30, 0, 0);
Else if (choise.selecteditem.value == "w")
Ts = new timeespan (7, 0, 0);
Else if (choise.selecteditedItem.value == "d")
Ts = new timeespan (1, 0, 0);
Hc.expires = dt.add (ts);
Response.cookies.Add (HC);
}
}
