SqlCommand INSERT INTO query does not execute

问题

Hello guys I have got this code:

SqlCommand scom = new SqlCommand(
                                "INSERT INTO klient(name,surname) 
                                values(@kname,@ksurname)", 
                                conn);

scom.Parameters.AddWithValue("@kname", kname.Text);
scom.Parameters.AddWithValue("@ksurname", ksurname.Text);
conn.Open();
DataTable dt = new DataTable();
SqlDataAdapter SDA = new SqlDataAdapter("SELECT * FROM klient", spojeni);
SDA.Fill(dt);
conn.Close();

It should insert data from textboxes: kname, ksurname, but it closes the form without showing them in MS SQL table klient

回答1:

Missing the ExecuteNonQuery call

SqlCommand prikaz = new SqlCommand("INSERT INTO klient(name,surname) values(@kname,@ksurname)", spojeni);

prikaz.Parameters.AddWithValue("@kname", kname.Text);
prikaz.Parameters.AddWithValue("@ksurname", ksurname.Text);
spojeni.Open();
prikaz.ExecuteNonQuery();
......

A command should be executed to update the database...

回答2:

You haven't executed the command.

prikaz.ExecuteNonQuery();

回答3:

The above stated problem is due to the missing executenonquery() statement, add this statement in your code

spojeni.Open();
prikaz.ExecuteNonQuery();

来源：https://stackoverflow.com/questions/17569051/sqlcommand-insert-into-query-does-not-execute