Hello Nick,

Thank you for your sample. However, there is no data in WebCombo.
I was also unable to type in WebCombo. Is there something I was missing? So, for your currect scenario, I could not see the values at all.
When press a button click, the value should be also persisted in wcCategories. FYI, we have release new hotfixes, please try to update into the latest build for the better result.

Regards,
Handy

Hello Handy,

I have fixed attachment. Please try again

Regards,

Nick

Hello Nick,

Actually we have not supported LinkWebCombo for multiple selections. But we do have workaround. 

As I concerned, you also try to handle it. But unfortunately, it seems you were doing in incorrect way.

The reason why it got empty, because for second WebCombo, you force to insert the new list based on WebCombo1 selection without rebind it again. We can call it became unbound.
As I remembered, we could not get value for unbound WebCombo.
Every time we checked the value or multiple values, it will be " ".

So, I enclosed my simple sample about how to do Link WebCombo in MultipleSelection scenario. Everytime, WebCombo1 do some selections, I handle own query for WebCombo2 based on WebCombo1.

Regards,
Handy