C# insert data to DB

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4.00/5 (1 vote)

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What is wrong with this code, because i can't insert data to my service-based DB. DB connect is OK so something must be wrong with code next from the end ofthe catch syntax

C#

string cn=@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database1.mdf;Integrated Security=True;User Instance=True";
            SqlConnection connection = new SqlConnection(cn);
            SqlDataAdapter adapter = new SqlDataAdapter();
            SqlCommand command = new SqlCommand();
            try
            {
                connection.Open();
            }
            catch (Exception)
            {
                MessageBox.Show("ERROR");
                connection.Close();
            
            }
            command = new SqlCommand("SELECT * FROM users",connection);
            adapter.SelectCommand = command;
            command = new SqlCommand("INSERT INTO users(uname,pass,mail)"+
            "VALUES(@uname,@pass,@mail)",connection);
            //
            command.Parameters.Add("@uname", tBuime.Text);
            command.Parameters.Add("@pass", tBgeslo.Text);
            command.Parameters.Add("@mail", tBeposta.Text);
            //
            adapter.InsertCommand = command;
            connection.Close();

Thanx for help !

Posted 12-Feb-12 21:56pm

aljaz00

Updated 12-Feb-12 22:01pm

Al Moje

v2

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Al Moje 13-Feb-12 4:02am

Added pre tag.

3 solutions

Solution 1

You have to call

C#

adapter.Update

method to execute the insert command before closing the connection

Posted 12-Feb-12 22:09pm

ProEnggSoft

Comments

ProEnggSoft 13-Feb-12 4:30am

Can you please tell me the reason for down voting

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Bernhard Hiller · Accepted Answer · 2012-02-12T22:09:00

Solution 2

You do not need the adapter. Just do a

C#

command.ExecuteNonQuery();

Posted 12-Feb-12 22:09pm

Bernhard Hiller

jai000 · Accepted Answer · 2012-02-12T22:13:00

Use this code

C#

command.Parameters.Add("@uname", tBuime.Text);
            command.Parameters.Add("@pass", tBgeslo.Text);
            command.Parameters.Add("@mail", tBeposta.Text);
            //
            adapter.InsertCommand = command;
            //added line  
            adapter.InsertCommand.ExecuteNonQuery();
            //added line ENDS HERE 
            connection.Close();

Hope this will help you if it works fine then accept this answer
Thanks...