Retrieve item lines from suspended transactions, POS RETAIL

Hello, i'm under Microsoft Dynamics AX for Retail POS and i'm facing an issue.

I'm wokring on a form that retrieive the suspended transactions filtred by the customer that i put in the BlankOperations project.

I was able to get the list of suspended transactions by customer but i can not find a way to retrieive the lines of each transaction.

After somes researchs i discover that the lines are stored in a Hexadecimal format in the database under the TRANSACTIONDATA field of the table SALESTRANSACTION.

When i convert the TRANSACTIONDATA  to string i get a XML String .

Now i'm asking if is there a way to retrieve the transaction lines based on the sdk retail. 

i put a screen so you can more understand what i am trying to do.

best regards

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