Access server-side list to javascript

Question

I have datarow written from the database.how can I access the list in javascript? Please help.

  StringBuilder sb = new StringBuilder();
        sb.Append("<script>");
        sb.Append("var testArray = new Array;");
        foreach (DataRow str in result)
        {
            sb.Append("testArray.push('" + str.ItemArray[1].ToString() + "');");
        }
        sb.Append("</script>");
        Page.ClientScript.RegisterStartupScript(this.GetType(), "test", "test('"PassTestArrayHere"');", true);

Never heard of json? james.newtonking.com/projects/json-net.aspx — Travis J
– Travis J, Commented Jul 9, 2013 at 17:42
Check out this SO answer: stackoverflow.com/questions/11826936/… — Jesse Smith
– Jesse Smith, Commented Jul 9, 2013 at 17:43
One of two ways. Either 1) render the data to the page when the page loads, or; 2) make an AJAX call to the server from the page to get the data. The first option is a lot easier unless you have a compelling reason to use the latter option. What exactly is this code trying to do, anyway? What does the rendered JavaScript look like and in what way does it fail? — David
– David, Commented Jul 9, 2013 at 17:43
its failing because of the script tag! I have method that collects data from database and return list and I want to pass it to javascript since i m not using AJAX. — rach
– rach, Commented Jul 9, 2013 at 18:17

Phong Vo · Accepted Answer · 2013-07-10 04:32:01Z

1

Your script will not work, instead of using sb.Append("testArray.push('" + str.ItemArray[1].ToString() + "');"); you can convert you array to JSON and return to client. In case you still want to follow you approach, you should convert your array to a string with the format like: String a = "['item0', 'item1', 'item2']"; and then:

Page.ClientScript.RegisterStartupScript(String.GetType(), "test", "test(" + a + ");", true);

answered Jul 10, 2013 at 4:32

Phong Vo

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