ASP.NET

listbox selection limitatiom

10-Sep-07 19:35

By using javascript i think thats the best way to do at client side

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

Chetan Patel10-Sep-07 20:15

Chetan Patel

10-Sep-07 20:15

JavaScript is Bes Way.
If you need the JavaScript Reply this message

Best Regards,
Chetan Patel

30 day calender [modified]

m v ramana10-Sep-07 19:29

m v ramana

10-Sep-07 19:29

Hello,
I'd like to display the calendar which having the 30days(15days past and 15 days future from the current date) in asp.net, i am also binding the data to calender from the database according to the dates
if i was using the asp.net calender control it working fine but it display the monthly calender

is it possible to make the monthly calender(asp.net calender control) into 30day calender which contains past and future 15 days from the current date

ramana

-- modified at 3:23 Thursday 11th October, 2007

"Action may not always bring Happiness
But There is No Happiness Without Action"

-- modified at 4:38 Thursday 11th October, 2007

Password in Cookies

varshavmane10-Sep-07 19:10

10-Sep-07 19:10

Hi All,

I am using ASP.NET 2.0 (C#). I have a login page on which Remember Me checkbox is there. I want whenever that checkbox is checked I need to save the login name and password on in cookies so whenever he/she logout and again login then he/she can see his/her login name in the textbox and accordingly password should be displayed.

Please help me...

Thanks in advance...

Sandeep Akhare10-Sep-07 19:38

10-Sep-07 19:38

Hi Varsha
Look at this article
http://www.codeproject.com/useritems/Remember_me_next_time.asp[^]

or i found n number of arcticles when searched
http://www.google.co.in/search?hl=en&q=Remember+me+cookie+asp.net&meta=[^]

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

varshavmane10-Sep-07 19:53

10-Sep-07 19:53

Hi Sandeep,

Thanks for the reply, I have already implement this code. My requirement is different. I need to have my login name in the login textbox for ex: when i press v then it should display all the user name whose login name starts with v and when I select my login name it should automatically display the password in password textbox and when I press go button it should go to the home page of my site.

Hope I have made my self clear? Also I would like to know how did u got my name?

Sandeep Akhare10-Sep-07 20:28

10-Sep-07 20:28

ASP.NET 2.0 wrote:
My requirement is different. I need to have my login name in the login textbox for ex: when i press v then it should display all the user name whose login name starts with v and when I select my login name it should automatically display the password in password textbox and when I press go button it should go to the home page of my site.

I think you will have to do it with javascript code. I don't know as i never did it . but will ping you if i found anything that will help you ...

ASP.NET 2.0 wrote:
Hope I have made my self clear?

Yes

ASP.NET 2.0 wrote:
Also I would like to know how did u got my name?

Simple in past i answered your many queries with your name VarshaMane then i think you changed your name Smile | :)

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

varshavmane10-Sep-07 22:44

10-Sep-07 22:44

Will u please help me with the code??

Sandeep Akhare10-Sep-07 23:37

10-Sep-07 23:37

Hey Varsha got the solution just worked aroung for few minutes and got Smile | :)

see the javascript code. here there are 2 funtion one is to setCookie which we need to call from button click and get cookie which we need to call from password text box set focus try this solution and reply if you have any problems/issue over it Smile | :)

<br />
 function writeCookie()<br />
    {<br />
      var txtuname=  document.getElementById('TxtBxUserName');<br />
      var txtpass=  document.getElementById('TxtBxPassword');<br />
       <br />
        <br />
        var exdate=new Date();<br />
        exdate.setDate(exdate.getDate()+15);<br />
<br />
        if(document.getElementById('CheckBox1').checked)<br />
        {<br />
          alert( txtuname.value+"="+escape(txtuname.value+"|"+txtpass.value)+";expires="+exdate.toGMTString());<br />
            document.cookie= txtuname.value+"="+escape(txtuname.value+"|"+txtpass.value)+";expires="+exdate.toGMTString();<br />
            <br />
        }<br />
        else<br />
        {<br />
            alert("Check box is not selected ");<br />
                 <br />
        }<br />
    }<br />
    <br />
    function readCookie()<br />
    {<br />
   <br />
      var txtuname=  document.getElementById('TxtBxUserName');<br />
      var txtpass=  document.getElementById('TxtBxPassword');<br />
      <br />
<br />
  if (document.cookie.length>0)<br />
  {<br />
   var  c_start=document.cookie.indexOf(txtuname.value);<br />
   //alert(document.cookie);<br />
   //alert("to search txtvalue "+txtuname.value);<br />
  <br />
      if (c_start!=-1)<br />
        { <br />
        c_start=c_start + txtuname.value.length +1 ;<br />
      //   alert(" start "+c_start);<br />
    var    c_end=document.cookie.indexOf(";",c_start);<br />
  //  alert("end "+c_end);<br />
                if (c_end==-1) <br />
                {<br />
                    c_end=document.cookie.length;<br />
    //                alert(c_end);<br />
                }<br />
           var value= unescape(document.cookie.substring(c_start,c_end));<br />
         //  alert("value "+value);<br />
           var arr = new Array(2);<br />
           arr= value.split('|',2)<br />
           alert("Username "+arr[0]);<br />
           alert("Password "+arr[1]);<br />
           txtuname.value=arr[0];<br />
           txtpass.value=arr[1];<br />
           } <br />
           else<br />
           {<br />
                 txtpass.value="";<br />
           }<br />
    }<br />
<br />
    } <br />
<br />

only thing that you have to call from page

<br />
 LoggedInButton.Attributes.Add("OnClick", "javascript:writeCookie();");<br />
 TxtBxPassword.Attributes.Add("OnFocus", "javascript:readCookie();");<br />

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

varshavmane11-Sep-07 0:06

11-Sep-07 0:06

Hi Sandeep,

Thanks for the reply. But I am not getting the value of password textbox. Below is the code which I am using, please let me know where I am wrong.

protected void Page_Load(object sender, EventArgs e)
{
Session["CompanyName"] = "FLAG";
try
{
if (Request.Cookies["RememberMe"] != null)
{
HttpCookie cookie = Request.Cookies.Get("RememberMe");
string emailID = cookie.Values["Email"].ToString();
string password = cookie.Values["Pass"].ToString();
string LoginID = cookie.Values["LoginID"].ToString();
txtId.Value = emailID;
txtPassword.Value = password;
htxtLoginID.Value = LoginID;
}
}
catch(Exception AuthorizationException)
{
}
}

protected void ibtnLogin_Click(object sender, ImageClickEventArgs e)
{
clsFunctions cs = new clsFunctions();
DataSet ds = new DataSet();

String str = "Select LoginId,LoginName ,Password from tbUser where LoginName= '" + txtId.Value + "' and Password ='" + txtPassword.Value + "' and UserGroupId= 1";
ds=cs.Return_Dataset(str,cs.connectionDBcentral() );
lblMessage.Visible = false;
if (ds.Tables[0].Rows.Count > 0)
{
HttpContext.Current.Cache.Insert(txtId.Value, ds.Tables[0].Rows[0][0]);

if (chkRememberMe.Checked)
{
HttpCookie RememberMe = new HttpCookie("RememberMe");
Response.Cookies.Remove("RememberMe");
Response.Cookies.Add(RememberMe);
RememberMe.Values.Add("Email", txtId.Value);
RememberMe.Values.Add("Pass", txtPassword.Value);
RememberMe.Values.Add("LoginID", ds.Tables[0].Rows[0][0].ToString());
DateTime dtExpiry = DateTime.Now.AddDays(2);
Response.Cookies["RememberMe"].Expires = dtExpiry;

Session.Add("Check", "On");
Session.Add("Country", "0");
Session.Add("logname", txtId.Value);
Session.Add("loginId", ds.Tables[0].Rows[0][0]);
Response.Redirect("Home.aspx");
}
else
{
HttpContext.Current.Cache.Insert(txtId.Value, ds.Tables[0].Rows[0][0]);

Session.Add("Check", "On");
Session.Add("Country", "0");
Session.Add("logname", txtId.Value);
Session.Add("loginId", ds.Tables[0].Rows[0][0]);
Response.Redirect("Home.aspx");
}
}
else
{
Session.Add("Check", "Off");
lblMessage.Text = "Invalid LoginName and Password";
lblMessage.Visible = true;
}
}
this code is in .cs file and in HTML i have used:

function setCookies()
{
var txtuname= document.getElementById('txtId');
var txtpass= document.getElementById('txtPassword');
alert(txtpass);
var txtLoginID =document.getElementById('htxtLoginID');
if (document.cookie.length>0)
{
var c_start=document.cookie.indexOf(txtuname.value);
//alert(document.cookie);
//alert("to search txtvalue "+txtuname.value);
alert(c_start);
if (c_start!=-1)
{
c_start=c_start + txtuname.value.length +1 ;
alert(txtuname.value.length +1);
// alert(" start "+c_start);
var c_end=document.cookie.indexOf(";",c_start);
// alert("end "+c_end);
if (c_end==-1)
{
c_end=document.cookie.length;
// alert(c_end);
}
var value= unescape(document.cookie.substring(c_start,c_end));
alert("value "+value);
var arr = new Array(3);
arr= value.split('|',2)
alert("Username "+arr[0]);
alert("Password "+arr[1]);
txtuname.value=arr[0];
txtpass.value=arr[1];
}
else
{
txtpass.value="";
}
}
}

Please help me...

Sandeep Akhare11-Sep-07 0:37

11-Sep-07 0:37

Hi
Sorry for late reply you can't add password frm server side check the javascript function readCookie() you have to call this function onFocus of password textbox and set the cookies when user looged in
See what you have to do
1) first of all if userName and password are correct then you have to write them in cookies ok
2) Second whenevr user starts to write his username then on pass word text box focus you have to call javascript .

<br />
protected void LoggedBtn_Click1(object sender, EventArgs e)<br />
    {<br />
         // First check enter user name and password are right or not if <br />
// they are then write the cookie <br />
       if(CheckCredentials(txtBxUserName,txtBxPassword))<br />
        if (CheckBox1.Checked)<br />
        {<br />
            HttpCookie cookie = new HttpCookie(TxtBxUserName.Text);<br />
            cookie.Values.Add("",TxtBxUserName.Text + "|" + TxtBxPassword.Text+";");<br />
            cookie.Expires.AddDays(30);<br />
            Response.Cookies.Add(cookie);<br />
<br />
    <br />
        }<br />
       <br />
    }<br />
// in page load register the java script to retrive the cookies value <br />
 TxtBxPassword.Attributes.Add("OnFocus", "javascript:readCookie();");<br />

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

varshavmane11-Sep-07 0:53

11-Sep-07 0:53

Hey sandeep its working now, but when I enter any other user name and password and then logout it is not store in cookies. Can u please tell me what might be the problem.

Ex: Suppose I first logon as varsha and password also varsha
and do login and logout and when I again login with varsha it shows by password.
But now if i logon as sandeep and password also sandeep and check the checkbox of remember me and do login it gets login but then value in the cookies are varsha.

Can we have the new value in cookies???

Sandeep Akhare11-Sep-07 1:02

11-Sep-07 1:02

<br />
HttpCookie cookie = new HttpCookie(TxtBxUserName.Text);<br />
            cookie.Values.Add("",TxtBxUserName.Text + "|" + TxtBxPassword.Text+";");<br />

It is happening because you need to store the cookies with different name see above code where i have created cookie with name USername and pass it value as "" and password . i think you are creating cookies with same name/key again check whether you are resetting the cookies you should not reset cookies.I hope you got the point Blush | :O

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

varshavmane11-Sep-07 1:20

Re: Password in Cookies [modified]

11-Sep-07 1:20

I am implementing Logout ie When I logout all the cookies must be removed and when I login with new user name cookies should be replace with that. Here is the code:
Login.asp.cs
protected void Page_Load(object sender, EventArgs e)
{
Session["CompanyName"] = "FLAG";
txtPassword.Attributes.Add("OnFocus", "javascript:readCookie();");
}

protected void ibtnLogin_Click(object sender, ImageClickEventArgs e)
{
clsFunctions cs = new clsFunctions();
DataSet ds = new DataSet();
String str = "Select LoginId,LoginName ,Password from tbUser where LoginName= '" + txtId.Value + "' and Password ='" + txtPassword.Value + "' and UserGroupId= 1";
ds=cs.Return_Dataset(str,cs.connectionDBcentral() );
lblMessage.Visible = false;
if (ds.Tables[0].Rows.Count > 0)
{
HttpContext.Current.Cache.Insert(txtId.Value, ds.Tables[0].Rows[0][0]);

if (chkRememberMe.Checked)
{
HttpCookie RememberMe = new HttpCookie("RememberMe");

RememberMe.Values.Add("", txtId.Value + "|" + txtPassword.Value + ";");
RememberMe.Expires.AddMinutes(2);
Response.Cookies.Add(RememberMe);

Session.Add("Check", "On");
Session.Add("Country", "0");
Session.Add("logname", txtId.Value);
Session.Add("loginId", ds.Tables[0].Rows[0][0]);
Response.Redirect("Home.aspx");
}
else
{
HttpContext.Current.Cache.Insert(txtId.Value, ds.Tables[0].Rows[0][0]);
Session.Add("Check", "On");
Session.Add("Country", "0");
Session.Add("logname", txtId.Value);
Session.Add("loginId", ds.Tables[0].Rows[0][0]);
Response.Redirect("Home.aspx");
}
}
else
{
Session.Add("Check", "Off");
lblMessage.Text = "Invalid LoginName and Password";
lblMessage.Visible = true;
}
}

JavaScript function:

function readCookie()
{
var txtuname= document.getElementById('txtId');
var txtpass= document.getElementById('txtPassword');
if (document.cookie.length>0)
{
var c_start=document.cookie.indexOf(txtuname.value);

if (c_start!=-1)
{
c_start=c_start + txtuname.value.length +1 ;
var c_end=document.cookie.indexOf(";",c_start);
if (c_end==-1)
{
c_end=document.cookie.length;
}
var value= unescape(document.cookie.substring(c_start,c_end));
var arr = new Array(2);
arr= value.split('|',2)
alert(arr[0]);
// alert("Username "+arr[0]);
// alert("Password "+arr[1]);
txtuname.value=arr[0];
txtpass.value=arr[1];
}
else
{
txtpass.value="";
}
}
}

Logout.aspx.cs

protected void Page_Load(object sender, EventArgs e)
{
HttpContext.Current.Cache.Remove(Session["logname"].ToString());
Session["Check"] = "off";
//Cache.Remove("RememberMe");
//HttpCookie RememberMe = new HttpCookie("RememberMe");
//RememberMe.Expires = DateTime.Now;

Response.Cookies["RememberMe"].Expires=DateTime.Now;

Session.Abandon();
FormsAuthentication.SignOut();
Response.Redirect("Login.aspx?action=SessionExpired", true);
}

I am not getting how to do.

Thanks again.

Sandeep Akhare11-Sep-07 1:11

11-Sep-07 1:11

Yes i think there is one more problem need to check that whenever i am bulding and restarting the application causes reset of cookies Frown | :(

need to check that one i don't know why it's happenin Unsure | :~

g

-- modified at 7:19 Tuesday 11th September, 2007

Thanks and Regards
Sandeep

If If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "

varshavmane11-Sep-07 2:20

11-Sep-07 2:20

Thanks Sandeep, its working fine now. Thanks a lot... Smile | :)

Sandeep Akhare11-Sep-07 3:25