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        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                SqlConnection myConnection = new SqlConnection("user id=testuser;" +
                                                               "password=test;server=localhost;" +
                                                               "Trusted_Connection=yes;" +
                                                               "database=scharp; " +
                                                               "connection timeout=30");
                SqlCommand myCommand = new SqlCommand("INSERT INTO verlauf(time)VALUES('IBM')", myConnection);
                myCommand.ExecuteNonQuery();
            }
            catch
            {
                MessageBox.Show("Fehler!");
            }

        }                    

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catch(Exception ex)
{
   MessageBox.Show(ex.Message, "Fehler");
}