Take value from query to label in C#

Question

How can i take value from query result to label?

I have two label, one is labelName and one more is labelDepartment

So when i r

Answer 1

One way to do:

private void getData()
{
    DataTable dt = new DataTable();
    SqlConnection connection = new SqlConnection("YOUR CONNECTION STRING HERE");
    connection.Open();
    SqlCommand sqlCmd = new SqlCommand(" SELECT tbl_staff.staffName,tbl_department.department 
FROM tbl_staff,tbl_logs,tbl_department 
WHERE tbl_staff.userID = tbl_logs." + listStaff.SelectedValue + " and tbl_staff.idDepartment = tbl_department.idDepartment", connection);
    SqlDataAdapter sqlDa = new SqlDataAdapter(sqlCmd);

    sqlCmd.Parameters.AddWithValue("@username",user);
    sqlDa.Fill(dt);
    if (dt.Rows.Count > 0)
    {
           lable.Text = dt.Rows[0]["staffName"].ToString(); //Where "staffName" is ColumnName 

    }
        connection.Close();
}

Suggest to use a stored procedure not in line query to avoid SQL injection attacks.

stored procedure example