How to pass array parameter from Code behind to javascript?

Question

I need to run a Javascript code within my ASP.NET project. In my ASP.NET project I have an array of information and i need to send it to javaScript to get handle information. Does anyone know how to solve this problem?

My code is this:

Asp.net ARRAY´s:

foreach (string music in distinctMusic)
{
    musicList[i] = music;
    i++;
}

foreach (int musicDuration in distinctMusicDuration)
{
    musicDurationList[k] = musicDuration;
    k++;
}

JavaScript function:

function playNext(listMusic, musicDuration) {
    alert(listMusic[1]); //Test ...
}

That does not work. Help?

See this post: http://stackoverflow.com/questions/3464498/pass-c-sharp-asp-net-array-to-javascript-array?rq=1 — Jeff Odle, Jun 25 '13 at 17:46
There are many similar questions in SO. Do some more research before posting your questions. — Geeky Guy, Jun 25 '13 at 17:47
You are better off writing a service and calling it from script. If you want the quick easy dirty way, Jeff pointed you to a good writeup. — CodeMonkeyForHire, Jun 25 '13 at 17:49
ScriptManager.RegisterClientScriptBlock(Page, GetType(), "sleepTime", "playNext('" + musicList + "','" + musicDurationList + "');", true); — Flávio Costa, Jun 25 '13 at 17:50

score 0 · Answer 1 · edited May 23 '17 at 12:05

0

You could serialize the array to JSON and then de-serialize within Javascript. I think that will be the cleaner solution.

ASP .NET JSON SERIALIZER

Check this question from JSON to javascript array.

edited May 23 '17 at 12:05

Community

1
1

answered Jun 25 '13 at 17:47

Cacho Santa

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score 0 · Answer 2 · answered Jun 25 '13 at 17:49

0

Use ClientScriptManager.RegisterArrayDeclaration Method. It allows you to declare array name and array value (as comma-separated string)

answered Jun 25 '13 at 17:49

Yuriy Galanter

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score 0 · Answer 3 · answered Jun 25 '13 at 17:49

You'll have to setup a property in your code behind and then you can access that property from your js.

public string[] musicList;

function playNext(listMusic, musicDuration) {
var musicList = <%=this.musicList%>;
}

I haven't tested this as I'm not at a good place to test it, but it should work in theory.

How to pass array parameter from Code behind to javascript?

3 Answers3