[Mono-devel-list] Re: [Mono-list] How to maintain values in a HtmlSelect when modifying the content with javascript ?

Tiago Lima tiago.lima at vianw.pt
Thu Dec 11 18:15:00 EST 2003


Thanks, I will see that..

But in that case, how do I handle that in javascript, just like a <select>?

	Tiago Lima

On Thursday 11 December 2003 23:06, John BouAntoun wrote:
> Tiago,
>
> If you want to use the equivalent of a Html Select element, that is able to
> have it's values handle in C# on the server (i.e. on page load and after a
> postback etc) then why not simply use the
> System.Web.UI.WebControls.DropdownList item?
>
> You can bind the dropdown list option elements to records in a dataview or
> dataset and you can also get / set the selected index.
>
> I'm pretty sure that's what you are looking for.
>
> JBA
>
>
>
> -----Original Message-----
> From: Tiago Lima [mailto:tiago.lima at vianw.pt]
> Sent: Friday, 12 December 2003 10:00 AM
> To: mono-devel mailing list; mono-list mailing list
> Subject: [Mono-list] How to maintain values in a HtmlSelect when
> modifying the content with javascript ?
>
>
> Hi,
>
> I've a question regarding whether an HtmlSelect maintains the "options"
> inside it when these options get modified in javascript. I dont know how
> Microsoft .NET handles this...
>
> I have two HtmlSelects, one of them starts empty and the other one have all
> the elements... The user moves around the elements from one to another and
> then posts the result... I want to know the elements in the first
> HtmlSelect... How do I do this?
>
> If I select one of the elements in the first HtmlSelect then I get an
> error:
>
> System.IndexOutOfRangeException: Array index is out of range
> in [0x00074] (at /home/duncan/Mono/mcs/class/System.Web/
> System.Web.UI.HtmlControls/HtmlSelect.cs:209)
> System.Web.UI.HtmlControls.HtmlSelect:System.Web.UI.IPostBackDataHandler.Lo
>adPostData (string,System.Collections.Specialized.NameValueCollection)
> i
> ...
>
> this is because the HtmlSelect has no elements in the beggining !
>
> Is the System.Web.UI.WebControls.ListBox controls doing this?
>
> Thanks in advance,
> 	Tiago Lima
>
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