Hi Atanas.,
great its working!!
I only had to add one thing: The "value" property of the checkbox must be set to "@GetCheckboxValue(adressen)"
and this function implemented in the cs-file:
public bool GetCheckboxValue(Adressen adr)
{
if (selectedItems != null && selectedItems.Contains(adr))
return true;
return false;
}
Then the checkboxes get their values from the collection.
Best regards,
Frank