Spark list: how to unselect multiple items programmatically?

Hi, I have a spark list with multiple selection allowed. I want to add a button next to the list with which to deselect all selected items. How do I go about that? I tried to set myList.selectedItems = null, and myList.selectedItems = new Vector.<Object>, but to no avail. Help would be very much appreciated!

Hi Sam,
According to your description, my understanding is that you want to update multiple items in another list when updated a list item.
In the event receiver, you can update the multiple item using Client Object Model.
Here is a code snippet for your reference:
public override void ItemUpdated(SPItemEventProperties properties)
string siteUrl = "http://sp2013sps/sites/test/";
ClientContext clientContext = new ClientContext(siteUrl);
List oList = clientContext.Web.Lists.GetByTitle("another list name");
ListItem oListItem = oList.GetItemById(1);
oListItem["Title"] = "Hello World Updated！";
oListItem.Update();
clientContext.ExecuteQuery();
Best regards,<o:p></o:p>
Zhengyu Guo
Zhengyu Guo
TechNet Community Support

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