I am writing a program for myself by using ActiveRecord. I am an MS SQL Server Develper. So, I just did in a careless mistake. I called a table , User. If you call a table will crash with system table name, we use '[' and ']'. I hardcoded the table name in '[User]' in a Model class for ActiveRecord. I can't create a schema by Active Record. Because in MySql, we use '`'. So, it should be

Code

Code

http://www.codeproject.com/KB/mobile/WiMoSansVS.aspx
That is a good article to teach yourself for the mobile application in SharpDevelopment

I am learning the application programming on Android OS. I found that is easier to catch up because I am a WPF Programmer. Both of them are using xml to draw UI. That is not a strange thing for myself.

I faced a number of error for parsing a string into int. In most of cases, there is a validation missing.

Code

Code

Try-catch is an expensive operation!!!!!!!!

Secondly, I like to use TryParse even in the case, the progam can tolrate invalid value. TryParse can allow the logic to continue execution. I hate some things like stack track on the screen.

I think Server Side and Client Side, both have advantages and disadvantages.

Server Side:
Adv:

• More efficiency
• Easy to scale up(if the process is too complex, we can use load balancing)

Dis:

• Hard to deploy, to some complex operations, it may be required CLI store procs.
• More expertises required

Client Side:

Adv:

• Easy to be implement, You need to know C#
• Easy to deploy
• Easy to be manage

Dis:

• Less efficiency

I think, in generally, for complex operations, we can try to put that into the server side. For simple operations, just putting them into the client side logic. That is simple.