A Webdropdown on my contains multiple selected items. An user action causes the bespoke Webdropdown to be databound again, after which it contains a new list of items. Now i want to restore the items that were selected before this databinding, however it can be that the newly databound wdd does no longer contain items that were selected before. Thus i only want to "restore" the selection of items that are present in the newly databound wdd. How do I select these items that were selected before and select them again if they are present after databinding ?
Thank you for your example, is it possible to store the data on the page (hidden field for example, but can i simply the webdropdownitem ? ) instead of a session variable ? The particular selection is only valid for the page, whereas the session state is cross page.
Hello Henning,Thank you for contacting Infragistics Support.There could be several implementations how to persist the DropDown selection. I have created a CodeSample and I used a session variable to store the selection. After the DataSource for the DropDown is changed on btn click, a check is made if the new DataSource matches values from the previous selection and selects all matching. I have also included another DropDown and select all values ServerSide regarding this forum post of yours. http://ko.infragistics.com/community/forums/t/85513.aspx