Listbox

[stevenk140]

I am using asp.net and have a javascript function. I would like to get all my items out of a multi-selection list box. How would I set up the function and how would I cycle through the selected items?

 

[bnymk]

you can use a function like this to get all the items that have been selected from the listbox.

function selectedId(obj) {
var selected_Id = new Array();
var x=0;

for(var i=0; i<obj.selectBox.length; i++) {
if(obj.selectBox.selected) {
var selectedId = obj.selectBox.value;
selected_Id[x] = selectedId;
x++;
}
}
return selected_Id;
}

 

[stevenk140]

I am not too sure if I am doing this right

page.aspx.cs
private void Page_Load(object sender, System.EventArgs e)
{
btnTrend.Attributes.Add(&quot;onclick&quot;,&quot;MultiTrendWindow(RealTime.lstMultPnts);&quot;
}

page.aspx
<javascript stuff>
function MultiTrendWindow (listbox) {
var selected_Id = new Array();

for(var i=0; i<listbox.selectBox.length; i++) {
var selectedId = listbox.selectBox[i ].value;
selected_Id[i ] = selectedId;
}

alert(selected_Id[0].toString());
}

 

[bnymk]

did you try the code I posted????