We use this approach to add "Select All" funcionality: http://es.infragistics.com/community/forums/t/64674.aspx
Now we need to display "All Selected" whern all items were selected.
We already tried put it directly in the SpecializedTextBox but dont work as expected.
Thanks.
Hello Javier,
Thank you for your post. I have been looking into it and the sample you use and I can say that the functionality you want cannot be fully achieved. One thing you can do is add new item, when the SelectAll checkbox is checked with a Property set to "All Selected", but this way no item will be selected in the dropdown. If you change the text of the SpecializedTextBox the result will be the same, because the text is related to the SlectedItems Property of the ComboEditor. I attached a sample using the first approach. Please let me know if you have further questions on this matter.
Looking forward for your reply.
Im not sure this can be your best answer, our aproach is fully functionality, but the dropdown list get's collapsed when the text change to the contant value or inverse when display selected items to the constant.