how to use three different columns from data table which created in data base sqlAddpater in c#

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how to use three different columns from data table which created in data base sqlAddpater in c#
I am going to login with admin and user

I am going to show when admin logged then show admin window and when user logged then show user window
by using data base in c#

Posted 30-Dec-15 7:55am

Dnyanu.shinde

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ZurdoDev 30-Dec-15 14:08pm

If you have a SqlDataAdapter then use it to fill a DataSet. Where are you stuck?

2 solutions

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Dnyanu.shinde · Answer 1 · 2015-12-30T08:25:00

C#

SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\NANO\Documents\nan.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True");
            SqlDataAdapter sda = new SqlDataAdapter("select count(*) from  registration where name ='" + textBox1.Text + "' and password= '" + textBox2.Text + "'", con);
            DataTable dt = new DataTable();
            sda.Fill(dt);
            if (dt.Rows[0][0].ToString() == "1")
            {
                this.Hide();
              
                wlcm ww = new wlcm(textBox1.Text);<pre lang="c#">

ww.Show();
}
else
{
MessageBox.Show("please check your user id or password");
}
this is my code for login id and password, i have stored account tpye is registartion table in that table column name is actype...
help me for doing login with user id , pasword and account type, is admin or user

Member 11449483 · Answer 2 · 2015-12-30T23:19:00

Solution 2

Try this

select [col1]+[col2]+[col3] as sumadd from [tablename] order by sumadd

Posted 30-Dec-15 23:19pm

Member 11449483