sql server querry fetch data

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i want to verify from database that the user id and paswrd is correct i no that how to write querry but i dont no how to write it in sql command actually i want to fetch user id and passwrd from text box so how to write

SqlCommand cmd = new SqlCommand("SELECT * FROM admin where user_id='admin' and user_pwd='admin'");
the underline thing must be fetch from textbox and verify from database but how???

Posted 13-Oct-11 10:35am

muzamil1

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André Kraak · Answer 1 · 2011-10-13T10:55:00

Try this:

C#

SqlCommand cmd = new SqlCommand("SELECT * FROM admin where user_id=@USERID and user_pwd=@PASSWORD");

cmd.Parameters.Add(new SqlParameter("@USERID", userIDTextbox.Value));
cmd.Parameters.Add(new SqlParameter("@PASSWORD", passwordTextbox.Value));

You will to replace userIDTextbox and passwordTextbox with the names you are using for the text boxes.

hitech_s · Answer 2 · 2011-10-13T19:05:00

Solution 2

ofcource it causes sqlinjection attack
you can use like this

SqlCommand cmd = new SqlCommand("SELECT * FROM admin where user_id='"+usernametextbox.Text+"' and user_pwd='"+passwordtexboxid.Text+"'");

Posted 13-Oct-11 19:05pm

hitech_s