Active directory authenication

Question

I have a new C#.net 2008 console/windows form application that I need to add security for. I would like to tie all logins together at one time using the active directory. I would like to have windows authenicatiuon setup to use to connect to the sql server 2008 r2 database, I would like to know what role each person has, I also would like to setup a methods to determine what application a user has access to and what their roles are in each application. (For example; a person can have access to app1 and be a manager in the next applicationn theperson would only have a 'general' user role.) Thus i am wondering if you can tell me the following;

1. I would like to know how each person can connect to the database,
2. I would like to see C#.net 2008 code that would accomplish the tasks i listed above or at least accomplish part of the tasks listed above.

Answer 1

hi Pankaj,
if you are creating dynamic query then at the time of creating sql string you can do following example :

 wherestring+=txt.Replace("'","''"); 

// single quote is passed string in
//first parameter and single quote is written twice '' for second.

Answer 2

Hi

when you are use the single quite you need add extra two quote to string.or else is make to sql injection.

About this please take look,

http://archives.devshed.com/forums/windows-107/sql-injecttion-401471.html

thank you

Answer 3

Thanks

Answer 4

Thanks

Answer 5

Hi you just need to Replace every Single timeWriten Quote to Double Time

suppose you are inserting

string " pankaj's Name "

then you should write String Like

"Pankaj' 's name "     { Dobule time Single Quotes before 's' )

Thats it :)

Better to Write Function That Will Replace Every Single Time Quote to Write it Double time in String

public string CSQ(string str)
{
 
    return Strings.Replace(str, "'", "''");
}


if i Helps you please check "Do you like this answer"

Answer 6

Please see the following two links:
http://it.toolbox.com/wiki/index.php/How_do_I_escape_single_quotes_in_SQL_queries%3F
http://blog.sqlauthority.com/2008/02/17/sql-server-how-to-escape-single-quotes-fix-error-105-unclosed-quotation-mark-after-the-character-string/