Numbering tabitem in c# WPF

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I have a situation in which i wanted to create a Hotel Billing Application.Here when i click on the 'New Bill' button in the menu strip,a billing page opens.

I can open this page as many times i want,so i used tabcontrol here. Everytime i open this bill page,it takes the maximum value from database(from bill_no row) and increment by 1 and assign it to the tabitem content(the bill_no).

Whenever i click the 'New Bill' option, tabitem with same bill_no is displayed,its ok no problem with that.Let me explain it more deeply. I have clicked 'New bill' option 3 times and i have three tabitem with same content(bill_no) say 10.

Theres is save button bill page and if i am clicking on the save button in first tab, the details in that bill page will be saved in the database including bill_no, but still there are 2 tabitem with same content(bill_no,10).

Now when i click on the next tabitem, its content must be changed automatically to 11 beacause bill_no with 10 is already saved.

How can i achieve this?

Posted 31-Jul-12 4:43am

sabithp

Updated 31-Jul-12 4:49am

Kenneth Haugland

v2

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efkah 31-Jul-12 10:59am

Just re-read your Question, is the bill_no only internal? why dont u use guids instead? its best practice anyways.

sabithp 31-Jul-12 11:25am

what is guids?

efkah 31-Jul-12 11:34am

http://msdn.microsoft.com/de-de/library/system.guid.aspx
for reading into guid vs id as primary key try
http://databases.aspfaq.com/database/what-should-i-choose-for-my-primary-key.html
or
http://msdn.microsoft.com/en-us/library/ms190215%28SQL.105%29.aspx

sabithp 31-Jul-12 11:19am

what is guids?

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Akinmade Bond · Answer 1 · 2012-07-31T04:54:00

Solution 1

Add a Click EvenHandler that updates the tabitems when you create them.

Posted 31-Jul-12 4:54am

Akinmade Bond

Comments

sabithp 31-Jul-12 11:18am

yes i did that,but when i go back to the first tabitem where i clicked the save button,that tabitem content is also updating.i dont want that.

Akinmade Bond 31-Jul-12 11:53am

You can add a property that determines the tabitem that saved the information.

sabithp 31-Jul-12 12:13pm

could you please tell me how to do that.actually i am a beginner..so please

sabithp 2-Aug-12 7:18am

should i use generics to do that?
please help me..

Clifford Nelson · Answer 2 · 2012-07-31T07:15:00

Are you using the MVVM design pattern? If you are not you should be. In the ViewModel, you should have the name of the tab or the information you want to use for the name and you can use a converter. The TabControl has a collection tabs, and you can bind the TabControl's ItemsSource to the collection of tabs you want displayed. See this blog: MVVM TabControl[^]. I know it is not a detailed example, but should be of help getting started with a properly designed Tab Control MVVM application.