ASPX ListBox AutoSelect First Item

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Hello,

I was wondering if someone could give me a hand in this project that im working on, right now i need to auto-select the first item on a listbox after i click an item on a diferent listbox.

Im working in Aspx , thank you.

Best Regards

Posted 23-May-12 22:31pm

Member 8956437

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Mohamed Mitwalli · Answer 1 · 2012-05-23T22:41:00

Solution 1

Hi ,
If you need to select the First Value you have to set SelectedIndex

C#

ListBox1.SelectedIndex = 0;

Best Regards
M.Mitwalli

Posted 23-May-12 22:41pm

Mohamed Mitwalli

Comments

Member 8956437 24-May-12 4:56am

I see, thank you, but how do i apply that to Aspx?

Mohamed Mitwalli 24-May-12 7:48am

just put it in page load

Member 8956437 24-May-12 7:57am

I've tried that but its not workig, nothing that i put in Page_load works.

Technoses · Answer 2 · 2012-05-23T23:12:00

Solution 2

C#

ListBox1.SelectedIndex = 0;

is the right answer and you should write in in C# code.

if you want to use JS

then you can use

JavaScript

document.getElementById("ListBox1").selectedIndex = 0;

at then bottom of page

Posted 23-May-12 23:12pm

Technoses

Comments

Member 8956437 24-May-12 5:24am

I put that in protected void Page_Load(object sender, EventArgs e) and its not working. Im kinda new to Aspx an Aspx.Cs

Technoses 24-May-12 12:55pm

what is your code write here bolow

Member 8956437 24-May-12 13:02pm

I dont have any code in the aspx.cs.