Grant Access ...

Apr 14, 2007

I have created a table with ..

username, password, grant

username and password are nvarchar

grant is a bit

I want to check the availability of the username and password and then check if it is granted to access or not ..

so I made a selection query for getting the grant when username ==x and password = y

x=data come from another page

y=data come from another page

then put the selected grant or deny ( true or false) in a data set ..

and then check if it is grant ( true) to complete what I want >>>

else ( deny ....( false )) to return a reponse of deny username or password...

but everytime the dataset is empty ..

this is my code ... 
sqlConnection1.Open();
SqlDataAdapter da=new SqlDataAdapter("select grant_deny from users where username='"+Request.QueryString["username"]+"' and password='"+Request.QueryString["password"]+"'",sqlConnection1);
da.Fill(ds,"users");
sqlConnection1.Close()
if (ds.Tables[0].Rows[0]["grant_deny"].ToString()=="true")
{
.
.
.
.
}
else
{
Response.write("error");


what is wrong ..??

and if there is anyone has another solution for what I want .. I appriciate any sample code,...

thanks in advance..

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