How to pass custom string in JavaScript function from code behind in?

Question

I have a string structure like this:

    string str = "[['<h1>Heading 1</h1><p>Paragraph 1</p><p>Paragraph 2</p><p>Paragraph 3</p>', 31, 32,1],
['<h1>Heading 1</h1><p>Paragraph 1</p><p>Paragraph 2</p><p>Paragraph 3</p>', 34, 35,2]]";

I am trying to pass this string in javascript function but alert is not working. How can I pass this string in JS function. So far I have tried this but it is not working

ScriptManager.RegisterStartupScript(this.Page, this.Page.GetType(), "test", "test('" + str + "')", true);

JS

 function test(str) {

    alert(str);
 }

Check the generated javascript, it contains embedded quotes that end the string prematurely. You will need to escape (at least) the quotes. — Hans Keﬆing
– Hans Keﬆing, Commented May 11, 2015 at 14:22
@HansKesting string has proper quotes I have already checked this. — aa003
– aa003, Commented May 11, 2015 at 14:26

Hans Keﬆing · Accepted Answer · 2015-05-11 14:28:27Z

1

When you check the generated javascript, it will start with test('[[' - and then the rest is not recognised as string content and gives a javascript error.

You will need to escape the string, using HttpUtility.JavaScriptStringEncode:

ScriptManager.RegisterStartupScript(this.Page, this.Page.GetType(), "test",
 "test('" + HttpUtility.JavaScriptStringEncode(str) + "')", true);

answered May 11, 2015 at 14:28

Hans Keﬆing

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Comments

Kresimir Pendic · Accepted Answer · 2015-05-11 14:23:42Z

0

you can use native browser JSON stringify function.. like this..

function test(str){
    alert( JSON.stringify( str ) ) ;
}

you should get your array in popup..

hth

answered May 11, 2015 at 14:23

Kresimir Pendic

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