C# windows search with sqlite_master if the table exists

Hello,
Need help with this piece of code 
....
Whether the table exists or not I still have Message 2 coming.
How do I know if a table exists?

thank you,

Program.Connex_Bdd.Open();
   var query_ttle = "SELECT count(*) FROM sqlite_master WHERE type='table' AND name='My_Tble' COLLATE NOCASE";
   var cmd = new SQLiteCommand(query_ttle, Program.Connex_Bdd);
   int i = 0;
   i = int.Parse(cmd.ExecuteScalar().ToString());

   if (i > 0)
   {
       MessageBox.Show("1");
   }
   else
   {

       MessageBox.Show("2");
   }

   Program.Connex_Bdd.Close();