How to get indices of multiple item that were selected in listbox
NickName:Nghia Nguyen Ask DateTime:2011-09-14T15:14:27

How to get indices of multiple item that were selected in listbox

I want to get indices of all the items that are selected in given listbox, there is a SelectedItems method which return a collection of items:

listbox.SelectedItems

But there is no SelectedIndices method. The collection also doesn't contain an index for each item.

How can I know which item was selected in my listbox?

Copyright Notice：Content Author:「Nghia Nguyen」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/7412559/how-to-get-indices-of-multiple-item-that-were-selected-in-listbox

Answers
ColinE 2011-09-14T07:58:26

You can simply use IndexOf to find their index in the collection of items. For example, when binding a collection of items:\n\n// create your list of items to display\nList<MyObject> items = new List<MyObject>();\n\n// NOTE: populate your list here!\n\n// bind the items\nlistBox.ItemsSource = items;\n\n\nYou can find the selected index as follows:\n\nvar selectedItem = (MyObject)listBox.SelectedItems[0]\nint index = items.IndexOf(selectedItem);\n",

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