InfoPath form has Multiple Selection List Box that checks all items instead of just one

Question

In InfoPath 2010, I have a Multiple-Selection List Box that uses an external data source to populate the check box items. This data source is an xml document that gets dynamically populated in the code behind in the On_Load method from a SharePoint list with the Title field and a Check box field. I have three items in this list and all three show up in the Multiple-Selection List Box. But when I check one of the check boxes, all three of them become checked, and vice-versa. I suspect this is because my Multiple-Selection List box is bound to a single repeating field.

Any suggestions on how I can check just one item in this Multiple-Selection List Box and not have every other item get checked as well?

Answer 1

Remove your C# code behind and use Sharepoint list column Title to fill items of Multiple Selection List Box instead of XML file and check box column of sharepoint list.

Fig.1. MSLB_Dynamically_Updateable_Items Sharepoint List

Fig.2. Multiple Selection List Box in Infopath Designer 2010

Fig.3. Running browser form with MSLB in client/filler

Fig.4. Enter URL. First Step of Data Connection Wizard