It sounds like you're trying to do something like this:
http://www.metabuilders.com/Tools/DualList.aspx
"deepak" <> wrote in message
news:CD437745-2F89-4824-B8AE-...
>i want to add and remove mutiple selected values in first list box(html
> control) to another(html control) at the same time after clicking a
> bttuonsay(Button1,html control) and remove mutiple selected text in
> another
> list box after cliking another button(Button2,html control) ..
> my script is given below
> ..........
> <script language=javascript>
> function doDetail(Action)
> {
> switch(Action)
> {
> case 'Add':
> var lstFrom = document.getElementById("lstFrom");
> var lstTo = document.getElementById("lstTo");
> if(document.Form1.lstFrom.selectedIndex == -1)
> {
> alert('Please select atleast one record to Add');
> return;
>
> }
> else
> {
> var o = document.createElement("option");
> var selIndex = lstFrom.selectedIndex;
> o.text = lstFrom.options[selIndex].text;
> o.value = lstFrom.options[selIndex].value;
> var i=0;
> for (i = 0; i <=lstFrom.selectedIndex; i++)
> {
> alert(i);
> }
> document.getElementById("lstTo").add(o);
> }
> break;
>
> case 'Remove':
>
> //var lstFrom = document.getElementById("lstTo");
> //var lstTo = document.getElementById("lstFrom");
> if(document.Form1.lstTo.selectedIndex == -1)
> {
> alert('Please select atleast one record to Remove');
> return;
> }
> else
> {
>
> var o = document.createElement("option");
> var selIndex = lstTo.selectedIndex;
> o.text = lstTo.options[selIndex].text;
> o.value = lstTo.options[selIndex].value;
> document.getElementById("lstTo").remove(lstTo.sele ctedIndex);
>
>
> // document.getElementById("lstTo").remove(new Option
> ("o.text","o.value"));
> document.getElementById("lstFrom").add(o);
>
> }
> break;
>
> }
> }
> </script>
> ........................................
> rivate Sub Page_Load(ByVal sender As System.Object, ByVal e As
> System.EventArgs) Handles MyBase.Load
> 'Put user code to initialize the page here
>
> Button1.Attributes("OnClick") = "javascript:doDetail(this.value);"
> Button2.Attributes("OnClick") = "javascript:doDetail(this.value);"
>
>
>
>
>
> If Page.IsPostBack = False Then
> fnFillListBox()
>
>
> End If
> End Sub
> ........................................
>
> help me