selectedindex

I have a <select> HTML element with 3 options and a <p> element. In the <p> element I want to print index of the currently selected item in <select> . E.g. if I select the first option, it should print 0, if I select the second option, it should print 1, and so on. How do I proceed from the minimal code, which is given below? import Html as H exposing (Html) import Maybe import Signal as S exposing (Address, (<~)) type alias Model = { selected : Maybe Int } model = { selected = Nothing } type Action = NoOp | Select Int update action model = case action of NoOp -> model Select n -> { model |

The problem is as follows: I connected the ListBox with a list of elements of some custom class ( List<Person> persons = new List<Person>() ) using DataSource property. Of course ValueMember and DisplayMember are both assigned to appropriate properties of this class. When I first load data, everything looks ok. However, when I click on some item (i.e. 7th position, counting from 1) and then rebuild the list AND the number of elements is LESS than 7, as a result I can't see the proper texts on the list. Instead, every item shows up as a class name, preceded by the namespace. In other words,

Given the HTML: <select id="mySelect"> <option value="1">test1</option> <option value="2">test2</option> <option value="3">test3</option> </select> and the javascript: var e = document.getElementById('mySelect'); To get the value of the select I can use e.value and e.options[e.selectedIndex].value . I am aware that e.options[e.selectedIndex].value will give me the selected value (1,2 or 3) and e.options[e.selectedIndex].text would give me test1, test2, test3 depending on which is selected. Is it ok to use just e.value ? was this a problem in old browsers? which is more correct: e.value vs e

If hold the listbox, I want to get listbox index. This is my code: <ListBox Margin="0,0,-12,0" Hold="holdlistbox" x:Name="listbox" SelectionChanged="listbox_SelectionChanged" SelectedIndex="-1"> </ListBox> private void holdlistbox(object sender, System.Windows.Input.GestureEventArgs e) { //How to get ListBox index here } If anyone knows help me to do this. e.OriginalSource will get you the actual control that was held (the top-most control directly under your finger). Depending on your ItemTemplate and where you hold then this could be any of the controls in the item. You can then check the

I want to set the selected index in a JComboBox by the value not the index. How to do that? Example public class ComboItem { private String value; private String label; public ComboItem(String value, String label) { this.value = value; this.label = label; } public String getValue() { return this.value; } public String getLabel() { return this.label; } @Override public String toString() { return label; } } JComboBox test = new JComboBox(); test.addItem(new ComboItem(0, "orange")); test.addItem(new ComboItem(1, "pear")); test.addItem(new ComboItem(2, "apple")); test.addItem(new ComboItem(3,

I have created a ListView called listUsers , but for some reason SelectedIndex isn't defined. And I have set the MultiSelect to false. It also seems suspicious to me that "False" is bolded. Meaning that it was not default. This is not what I think I have been experiencing before. So I find this very strange, and I don't know how to fix it. I have tried so far (That didn't work): Restarted VS Copied a ListView from other forms, & pasted it on this form Deleted this.listUsers.MultiSelect definition from Designer's code And none worked. What is going on? Additional details: Windows 7 32-bit

Possible Duplicate: retaining selected dropdown option on postback I have a dropdown when user selects the option, the value is passed on to the same url as querystring refreshing the page. after the page refreshes i wanna retain the selected value so user knows what was selected. How do i do this in jquery? <select id="hospitalDropDown" onchange="window.open(this.options[this.selectedIndex].value,'_top')"> <option value="http://mysite.com/events/Pages/default1.aspx">All Hospitals</option> <option value="http://mysite.com/events/Pages/default1.aspx?hos=Dyer">Dyer</option> <option value="http:/