ASP.NET

Re: Some Interview Question , Dammmmmmmm Urgent Plz [modified]

17-Aug-06 7:45

Ans 1: Active connection will be there in the database, connection won't close itself, because we used a datareader, it is a not disconnected like dataadapter. We have to manually close the connection.

Ans 2: We will get an exception exception like "concurrency violation ..."

Ans 3: No idea

Ram

Uma Kameswari17-Aug-06 18:15

Uma Kameswari

17-Aug-06 18:15

The session ID in ASP.NET is usually stored as a nonpersistent cookie on the client. The format of this cookie for example, asp.net_sessionid=jhmbobkcbinehlpkjhopabbe.

In addition to the traditional nonpersistent cookie method of maintaining state, ASP.NET supports a “cookieless” mode. When the cookieless mode is enabled, ASP.NET embeds the session ID in the URL that is sent back to the client. This provides persistence for clients using browsers that either do not support cookies or have cookies disabled. Cookieless mode is worth keeping in mind, considering the current emotions concerning cookies and tracking customers with them.

Regards,
Uma

-- modified at 0:17 Friday 18th August, 2006

Re: Some Interview Question , Dammmmmmmm Urgent Plz

Ramasubramaniam18-Aug-06 5:08

Re: Some Interview Question , Dammmmmmmm Urgent Plz

18-Aug-06 5:08

Hi Uma,
Nice answer.

Ram

Uma Kameswari18-Aug-06 19:46

Uma Kameswari

18-Aug-06 19:46

Hi Ram,

Thank u. can u give me ur id

Regards,
Uma

Re: Some Interview Question , Dammmmmmmm Urgent Plz

Ramasubramaniam21-Aug-06 3:44

Role based Sitemap node listing

21-Aug-06 3:44

Here is my id e_ramsubbu@hotmail.com

Ram

Tiger45616-Aug-06 23:28

Tiger456

16-Aug-06 23:28

Hi,

I am using Form Authentication in ASp.net 2.0 .

FormsAuthentication.SetAuthCookie(
           "jhon", false);

       FormsAuthenticationTicket ticket1 =
          new FormsAuthenticationTicket(
               1,                                   // version
               "jhon",   // get username  from the form
               DateTime.Now,                        // issue time is now
               DateTime.Now.AddMinutes(10),         // expires in 10 minutes
               false,      // cookie is not persistent
               "Admin"                              // role assignment is stored
           // in userData
               );
       HttpCookie cookie1 = new HttpCookie(
         FormsAuthentication.FormsCookieName,
         FormsAuthentication.Encrypt(ticket1));
       Response.Cookies.Add(cookie1);

       Response.Redirect("Default.aspx");

In Authentication_BeginRequest event i have this code

if (HttpContext.Current.User != null)
        {
            if (HttpContext.Current.User.Identity.IsAuthenticated)
            {
                FormsIdentity id = (FormsIdentity)HttpContext.Current.User.Identity;
                FormsAuthenticationTicket ticket = id.Ticket;

                string userData = ticket.UserData;
                string[] roles = userData.Split(',');
                HttpContext.Current.User = new GenericPrincipal(id, roles);
            }
        }

I am using Sitemap xml file where nodes specified with role attribute. When on binding the sitemap to a treeview . All nodes are listing. Seems role based listing is not comming into action. How to solve this problem.

Mike Ellison17-Aug-06 3:19

Mike Ellison

17-Aug-06 3:19

Have you enabled security trimming on your sitemap? You can do this by adding the attribute securityTrimmingEnabled="true" in your site map provider definition in web.config, as in the following example:

<siteMap defaultProvider="XmlSiteMapProvider" enabled="true">
  <providers>
    <add name="XmlSiteMapProvider"
      description="Default SiteMap provider."
      type="System.Web.XmlSiteMapProvider"
      siteMapFile="Web.sitemap"
      securityTrimmingEnabled="true" />
  </providers>
</siteMap>

Tiger45617-Aug-06 18:32

Tiger456

17-Aug-06 18:32

Hi Mike,

I've added the Tag to web config but the problem is still there . What to do.

Mike Ellison18-Aug-06 5:18

Mike Ellison

18-Aug-06 5:18

Well, you might just want to read up on it as much as you can. Here's MSDN's introduction:

http://msdn2.microsoft.com/en-us/library/ms178428.aspx[^]

download a file on a button click

Tiger45621-Aug-06 5:51

Tiger456

21-Aug-06 5:51

Thanks for your valuable time mike.

It was some problem with the authorization folder paths in webconfig.

Sivaprasad C16-Aug-06 21:51

Sivaprasad C

16-Aug-06 21:51

Hi friends,

Please help in

opening a file using c# on a button click...
I tried with link button by asigning the resolve url to the file path..
but i couldnt open it...

Regards,
Sivaprasad

_AK_16-Aug-06 23:07

_AK_

16-Aug-06 23:07

What problem are u getting? Which type of you want to open?

Best Regards,
Apurva Kaushal

Sivaprasad C17-Aug-06 8:41

Sivaprasad C

17-Aug-06 8:41

i want to open a .html file

Regards,
Sivaprasad

psamy16-Aug-06 23:15

psamy

16-Aug-06 23:15

it should be filefield html control will solve your problem.

Ramasubramaniam17-Aug-06 7:47

17-Aug-06 7:47

Try this out,

We can change the content type to open a file, This code will open document:
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=" +
sOrigFilename);
Response.AddHeader("Content-Length", oFileInfo.Length.ToString());
Response.ContentType = "application/octet-stream";
Response.WriteFile(sFullFilePath);
Response.End();

This will used to open an excel file:
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename="
+ "c:\\Test\\Test.xls");
Response.AddHeader("Content-Length", oFileInfo.Length.ToString());
Response.ContentType = "application/vnd.ms-excel";
Response.WriteFile("c:\\Test\\Test.xls");
Response.end

Ram

Sivaprasad C17-Aug-06 8:44

Sivaprasad C

17-Aug-06 8:44

Thanks Ram...U r code will do ..but I want to know the exact content type which will help me to download a .html file

I am using Response.ContentType="application/x-zip-compressed" and Response.ContentType="application/x-zip...But in both case i am not able to open it....

Regards,
Sivaprasad

GridView

blurMember16-Aug-06 20:45

16-Aug-06 20:45

I am using c#. i have a gridview and one of the column is Category. I have used the objectdatasource to bind the data. I want to count the number of "P" exist in that column and display it at the footer of the gridview.

<br />
int presentCount = 0;<br />
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)<br />
{<br />
if (e.Row.RowType == DataControlRowType.DataRow)<br />
{<br />
//if ( # = "P")<br />
presentCount++;<br />
}<br />
else if (e.Row.RowType == DataControlRowType.Footer)<br />
{<br />
e.Row.Cells[3].Text = presentCount.ToString();<br />
}<br />
}

What whould be the correct way. What syntax should be replaced by #?
Is there any sample I can follow?

thanks in advance. Much appreciated.

coolestCoder16-Aug-06 21:09

coolestCoder

16-Aug-06 21:09

Hi,
Please check wether you can write e.Row["Category"] = "P" instead of # = "P".

I think this will help !

"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder

Anant Y. Kulkarni

blurMember16-Aug-06 21:19

16-Aug-06 21:19

There was an error when I compiled.

Error Cannot apply indexing with [] to an expression of type 'System.Web.UI.WebControls.GridViewRow' C:\WebSites\Attendance\Admin\frm_Report.aspx.cs 322 17 C:\WebSites\Attendance\

thanks in advance. Much appreciated.

Re: GridView [modified]

coolestCoder16-Aug-06 21:31

coolestCoder

16-Aug-06 21:31

Hi,
Sorry about that but i dont know about the GridView.
You can use the cells collection of the row -
r.Row.Cells(0) where the '0' is column number of your desired column.
I am not sure about it but you can atleast try !

check this -
http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.tablerow.cells.aspx[^]

"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder

Anant Y. Kulkarni

blurMember16-Aug-06 21:40

16-Aug-06 21:40

Thanks for the link, I have yet to understand.

Anyone there who can help? Cry | :((

Jay_se16-Aug-06 22:40

Jay_se

16-Aug-06 22:40

Hi Blur Member ....

u may use ," e.Row.Cells[index].Text " to get the value on that Particular Cell ( index th position, zero indexing) of the current row.

Hope It works..

Regards,

Jay

blurMember16-Aug-06 22:50

16-Aug-06 22:50

There was an error.

Error 1 Cannot implicitly convert type 'string' to 'bool' C:\WebSites\Attendance\Admin\frm_Report.aspx.cs 322 17 C:\WebSites\Attendance\

 protected void GridView4_RowDataBound(object sender, GridViewRowEventArgs e)<br />
    {<br />
        if (e.Row.RowType == DataControlRowType.DataRow)<br />
        {<br />
            if (e.Row.Cells[3].Text = "P")<br />
            {<br />
                presentCount++;<br />
            }<br />
<br />
        }<br />
        else if (e.Row.RowType == DataControlRowType.Footer)<br />
        {<br />
                e.Row.Cells[3].Text = presentCount.ToString();<br />
        }

thanks for your help so far Jay