By Zain -Ul- Arifeen - 9/30/2012
1- private bool CompareStrings(string string1, string string2)
2- {
3-return String.Compare(string1, string2, true, System.Globalization.CultureInfo.InvariantCulture) 4- == 0 ? true : false;
5- }
6- private void btnlogin_Click_1(object sender, EventArgs e)
7- {
8- if (txtusername.Text == "" || txtpassword.Text == "")
9- {
10- MessageBox.Show("Please Fill All The Details", "Zain -Ul- Arifeen");
11- txtusername.Focus();
12- }
13- else
14- {
15- cnn.ConnectionString = "Data Source=zain\\SqlExpress;Initial Catalog=Studentinformationsystem;Integrated Security=true";
17- cnn.Open();
18- SqlCommand cmd = new SqlCommand("SELECT username,password FROM login WHERE 19- 19- username='" + txtusername.Text + "' and password='" + txtpassword.Text + "'", cnn);
20- SqlDataReader dr = cmd.ExecuteReader();
21- string userText = txtusername.Text;
22- string passText = txtpassword.Text;
23- while (dr.Read())
24- {
25- if
26- (this.CompareStrings(dr["username"].ToString(), txtusername.Text) &&
27- this.CompareStrings(dr["password"].ToString(), txtpassword .Text ))
28- {
29- frm.Show();
30- this.Hide();
31- }
32- else
33- {
34- MessageBox.Show("Invalid User or wrong Password", "Zain -Ul- Arifeen");
35- }
36- }
37- dr.Close();
38- cnn.Close();
|
|