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Yes sir you are right that "we should not block the back button of the browser using some javascript" because javascript can be disable for a browser.
As you suggested to check the session -- I am using Login control and form authentication, and after successfully logged in i have checked to count number of session available, but result found 0, because it keeps all information in a cookie. There is no any session. then how can i prevent to see the page before logged out.
If i manually set a session when user logged in and kill the session on logged out, then also someone can see pages (may contain confidential information) which was opened before logged out. Am I Right?
Then what is the proper solution to prevent see the confidential information opened during any one logged in??????
This Question was made too much earlier, So I think now u found the proper solution.
Please tell me sir.....
I am waiting for your reply...
Thank you in advance 
Dipak
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dipak.dipak wrote: If i manually set a session when user logged in and kill the session on logged out, then also someone can see pages (may contain confidential information) which was opened before logged out. Am I Right?
I am not sure I got your question. But using sessions to keep login information is a standard practice. Sessions are stored in the server memory and unique for each users.
dipak.dipak wrote: Then what is the proper solution to prevent see the confidential information opened during any one logged in??????
Do you mean when user presses back button? There are no efficient way to prevent the back button. You can do it using JS, which is not reliable. One solution I see is to open the users secured pages in a popup window, and close this window when user logs out.
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Hi'
I am in a process of building a document scanning application, I need help from where to start , what I intend to do is to build an application that would scan the document and then store it as binary in the database .
Kindly help me out in this regard.
Thanks,
Ali
Life is too short to be counted, enjoy life.
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There are good TWAIN SDKs available to purchase. I'm assuming you don't intend to handle scanning within Internet Explorer ? This is teh ASP.NET forum.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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I my dataset there are 100 records, how to get the records between 5 to 10
If you have the example please Paste it.
Mkanchha
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What do you mean by this posting ?
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Mkanchha wrote: I my dataset there are 100 records
Do you mean 100 tables. ?  A dataset can contain tables. But not rows.
I assume that you have a datatable that contains 100 records and you want to take records between 5 to 10. So the code could be something like this
for(int i=5;i<=10;i++)
{
Response.Write(YourDs.Tables[TableName].Rows[i][YourColumnName].ToString());
}
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Navaneeth. wrote: A dataset can contain tables. But not rows.
I think he want to say that Dataset contains 100 records means indirectly Dataset Contains one table which have 100 rows
so
!!! posted code is right 
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... "
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People got confusion between datasets and tables.. 
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Hi,
I have been getting timeout errors for displaying my data. I used this code:
using System;
using System.Collections.Generic;
using System.Text;
namespace MyAdapters
{
public partial class working_step_a00TableAdapter
{
public string ConnectionString
{
get
{
return this.Connection.ConnectionString;
}
set
{
Connection.ConnectionString = value;
}
}
public void SetCommandTimeout(int timeout)
{
foreach (IDbCommand command in CommandCollection)
command.CommandTimeout = timeout;
}
}
}
And in the page load section, it has:
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using MyAdapters;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.working_step_a00TableAdapter.SelectCommandTimeout = 300;
}
}
It doesn't understand 'using MyAdapters;' and it does not seem to work. What I am missing here? Thanks for your help.
ltrain2
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ltrain2 wrote: It doesn't understand 'using MyAdapters;'
Where is the class ?
ltrain2 wrote: this.working_step_a00TableAdapter.SelectCommandTimeout = 300;
Is SelectCommandTimeout static ? I don't see it there, at all.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )
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I created the class as BLL/TechBLL.cs folder. Apparently, I am trying this out on the web and am getting session timeout. The CommandCollection seems to be only helpful for nonweb users. How can I get timeout session against the web? Thanks.
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Hi all,
Been trying to play with Windows Sharepoint Services(2003 I think?) a bit recently and I'm having some pretty frustrating problems. My ASP.NET 2.0 knowledge isn't wonderful, but by my understanding, Web Parts can be used to wrap a user control and used in a web part page, correct? I tested a basic user control as a web part in my Vista environment using regular IIS and it seems to work fine. However, Sharepoint really doesn't play well with what I give it. I've looked at a bunch of different tutorials on how to get the things to work, but they just add to my confusion. Everytime I try to upload the Web Part I made to wrap a user control I did to Sharepoint, it tells me that I can't import the part. (Exact error message is: "Unable to add selected web part(s). Cannot import this Web Part.")
So does this mean that Sharepoint *requires* that you use the Sharepoint Web Parts framework/namespace, or can you use the regular ASP.NET ones found in the System namespace? And if I can use regular Web Parts, would the import error be from the configuration files? Thanks in advance for any assistance.
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How do i control aspx pages that will be accessible to different user of my page? Note I am using CSS Menu on my Master Page
thanks
t.aransiola
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I have a dropdown control on an aspx page,with the first item
--Select a Customer-- Value -1
I used a compare validatore to compare the dropdown control selectedvalue with "-1",the validator did not fire
t.aransiola
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Dropdown control on an aspx page:
--Select a Customer-- ----> Value -1
First ----> Value 1
Second ----> Value 2
Then set the following Properties for CompareValidator1:
1. Error message: U must select at least one value...
2. Test: *
3. Control to validate: ddlselect (Your Dropdown list name)
4. Operator : NotEqual
5. Type: Integer
6. Value to compare: -1
Now it will work. Try it out.
-JJ
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How can i send mail attachment to addresses that are stored in a database table.
e.g I have Customer Table with each customer address, i want to send email and attachment to all the customers
t.aransiola
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Hmmm...tough question. Maybe retrieve the addresses from the database and send them each an email, or add them all to the to property.
only two letters away from being an asset
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Hi all,
I know we're all mostly developers here, and not fairy designer types, but I'm in a bit of a fix since I'm on this web project all on my todd. So, does anyone know of a good place to get royalty free/public domain/ok to use in a commercial application XP Style Icons for the web? (I can probably stretch to $50.... the budget is real tight on this project!)
Cheers,
Martin.
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It cost you $249. XP Style Icons[^] is it ok for you.
$50 and all hope you cannot get XPstyle icons i hope.
Regards,
Satips.
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Hi,
I have dropdownlist named ddlapplication in my web form. When I click any item it insert
that record in database with primary key and show in gridview.
If user try to add the same record next time by clicking same item from the dropdown list
which already exist in database it should show error message that this
record alredy exist or in other words before inserting it should check wheather the record is already in database or not.
How can I do that. Here is my code
string str1 = this.ddlApplication.DataTextField;
string str2 = this.ddlApplication.SelectedValue;
string str3 = this.ddlPermission.SelectedItem.Value;
String constr = System.Configuration.ConfigurationManager.ConnectionStrings["twcsanConnectionString"].ConnectionString;
SqlConnection objConn = new SqlConnection(constr);
SqlCommand objCmd = new SqlCommand("INSERT INTO tbUsersAppRights(AppId, AppRightId, UserId) " +
"VALUES (@str1,@str2,@str3)", objConn);
objCmd.Parameters.AddWithValue("@str1", int.Parse(this.ddlApplication.SelectedValue));
objCmd.Parameters.AddWithValue("@str2", int.Parse(this.ddlPermission.SelectedValue));
objCmd.Parameters.AddWithValue("@str3", int.Parse(this.lblUserid11.Text));
objConn.Open();
objCmd.ExecuteNonQuery();
objConn.Close();
this.gdAddUser.DataBind();
seema
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You will have to validate against the database, do a Select Count(Appid) From tbUsersAppRights Where AppID = @str1" and when count is zero you can insert the row into the database.
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I have a text file(which is in different server) to be uploaded to database table. When we browse the file, and click upload button, it should redirect to other aspx page and from where the path of the file will be sent to a procedure to insert the values in the text file to a table.
But when I select a file and click the upload button its giving "Page cannot be Displayed" error.
My code is like this:
Try
Dim inputFile As New FileInfo(txtfilePath.PostedFile.FileName)
Try
If (inputFile.Length > 1) Then
lblStatus.Text = "File is empty"
Else
Response.Redirect("Form2.aspx?file=" & HttpUtility.UrlPathEncode(txtfilePath.PostedFile.FileName))
End If
Catch ex As Exception
lblStatus.Text = ex.Message
End Try
Catch ex As Exception
lblStatus.Text = "File doesn't exist or is inaccessible"
End Try
When I click upload button its saying page cannot be displayed.
Please if anyone can help me for fixing this, I'll be thankful.
Thank you.
Vasini
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Plz could u confirmed, is it working fine for local machine files.
If yes then you first save the file in locat system when upload the file from different server, then redirect the page with local file path.
If no then plz check before redirect first sure your Provided URL is write or wrong.
Parwej Ahamad
g_parwez@rediffmail.com
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if u r using fileupload control in your page ..plz check n tell me if the file size is greater than 2MB.
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