id is not passing from one table to another

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protected void btnAddQueue_Click(object sender, EventArgs e)
        {
            if (RadioNEW.Checked)
            {
                SqlConnection sc = new SqlConnection(System.Web.Configuration.WebConfigurationManager.ConnectionStrings["hospitalmanagementdb"].ToString());
                SqlCommand cmd = new SqlCommand("insert into patient values('" + txtFirstnm.Text + "','" + txtLastnm.Text + "','" + RadioMF.Text + "','" + txtAge.Text + "','" + txtContact.Text + "','" + txtEmail.Text + "','" + txtAddress.Text + "')", sc);

                sc.Open();
                cmd.ExecuteNonQuery();
                sc.Close();
            }
            else
            {
                SqlConnection sc = new SqlConnection(System.Web.Configuration.WebConfigurationManager.ConnectionStrings["hospitalmanagementdb"].ToString());
                sc.Open();
                SqlCommand cm = new SqlCommand("insert into appointment values((select max(patient_id) from patient),'" + dropQueue.SelectedValue.ToString() + "','" + System.DateTime.Today.Date.ToString() + "','treated')", sc);
                cm.ExecuteNonQuery();
                sc.Close();
            }
        }

In appointment table the patient id is not passing same id is showing in all data. Data is passed but only id is not working.

Posted 25-Mar-14 9:07am

Member 10694442

Updated 25-Mar-14 9:23am

Richard C Bishop

v2

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Sergey Alexandrovich Kryukov 25-Mar-14 15:43pm

"id is not working" in not informative...
—SA

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Christian Amado · Answer 1 · 2014-03-25T10:35:00

C#

protected void btnAddQueue_Click(object sender, EventArgs e)
{
    string query = string.Empty;
    if (RadioNEW.Checked)
    {
        query = "insert into patient values('" + txtFirstnm.Text + "','" + txtLastnm.Text + "','" + RadioMF.Text + "','" + txtAge.Text + "','" + txtContact.Text + "','" + txtEmail.Text + "','" + txtAddress.Text + "')";
    }
    else
    {
        query = "insert into appointment values((IDENT_CURRENT('patient')),'" + dropQueue.SelectedValue.ToString() + "','" + System.DateTime.Today.Date.ToString() + "','treated')"
    }
    
    using (SqlConnection con = new SqlConnection(System.Web.Configuration.WebConfigurationManager.ConnectionStrings["hospitalmanagementdb"].ToString()))
    {
        using(SqlCommand cmd = new SqlCommand(query, conn))
        {
            con.Open();
            cmd.ExecuteNonQuery();
            con.Close();
        }
    }

}

It's highly recomended that you use storeprocedure in order to use IDENT_CURRENT() inside it. More info about IDENT_CURRENT(TABLE) here[^].

Hope it helps.