buttons don't work in asp.net c#

Question

I am Using bootstrap templates

and i am want to save data in data base

don't show any Error or don't save data in database 

 

protected void Button1_Click(object sender, EventArgs e)

{

SqlConnection con;

con = new SqlConnection(ConfigurationManager.AppSettings["connect"]);

con.Open();

SqlCommand cmd;

cmd = new SqlCommand("Insert into registration (name,class) values('" + TextBox1.Text + "','" + TextBox2.Text + "')", con);

try

{

con.Open();

cmd.ExecuteNonQuery();

Label14.Text = "Data inserted successfully";

con.Close();

refress();

}

catch (Exception ex)

{

Label14.Text = ex.Message;

}

}