命令執行過程中遇到致命錯誤

Question

private void button1_Click_1(object sender, EventArgs e) 
     { 
      MySqlConnection con = new MySqlConnection(MyConString); 
      con.Close(); 
      con.Open(); 
      string m = "INSERT INTO Tools (TCode,TName,Description, 
          Classification,Model,Capacity,Status,Quantity, 
          Avaiability,DatePurchased,DateDelivered) 
         VALUES (@TCode,@TName,@Description, 
          @Classification,@Model,@Capacity,@Status,@Quantity, 
          @Avaiability,@DatePurchased,@DateDelivered)"; 
      MySqlCommand cmd = new MySqlCommand(m, con); 

      cmd.Parameters.Add("@TCode", MySqlDbType.VarChar).Value = txtCode.Text; 
      cmd.Parameters.Add("@TName", MySqlDbType.VarChar).Value = txtName.Text; 
      cmd.Parameters.Add("@Description", MySqlDbType.VarChar).Value = txtDesc.Text; 
      cmd.Parameters.Add("@Classification", MySqlDbType.VarChar).Value = txtClass.Text; 
      cmd.Parameters.Add("@Model", MySqlDbType.VarChar).Value = txtModel.Text; 
      cmd.Parameters.Add("@Capacity", MySqlDbType.VarChar).Value = txtCapacity.Text; 
      cmd.Parameters.Add("@Status", MySqlDbType.VarChar).Value = txtStat.Text; 
      cmd.Parameters.Add("@Quantity", MySqlDbType.VarChar).Value = txtQuantity.Text; 
      cmd.Parameters.Add("@Availability", MySqlDbType.VarChar).Value = ttAvail.Text; 
      cmd.Parameters.Add("@DatePurchased", MySqlDbType.VarChar).Value = txtDP.Text; 
      cmd.Parameters.Add("@DateDelivered", MySqlDbType.VarChar).Value = txtDD.Text; 

      cmd.ExecuteNonQuery(); 
      con.Close(); 
      MessageBox.Show("Successful!", "Message"); 
     } 

Answer 1

是不是@Avaiability而不是@Availability在這裏？

cmd.Parameters.Add("@Availability", MySqlDbType.VarChar).Value = ttAvail.Text; 

查收哪一個是你列的正確名稱：Avaiability或Availability。

謝謝。