Pass IEnumerable List to javascript

Question

I was wondering if I could pass a IEnumerable Collection into a Javascript method on the page load. So something like this...

<%@ Control Language=\"C#\"          


        

Answer 1

You can register the javascript in the code behind in the Page_Load with the following code (Note I am assuming that Model.NewsList is a string enumeration or array):

StringBuilder sb = new StringBuilder();
bool isFirst = true;
//build a comma seperated list.
foreach (string s in Model.NewsList)
{
    if (isFirst)
        isFirst = false;
    else
        sb.Append(", ");
    sb.Append("'").Append(s.Replace("'", "''")).Append("'");
}
//create the javascript array
string javascript = String.Format(@"var news = [{0}];", sb);
//put the array in the generated page.
Page.ClientScript.RegisterClientScriptBlock(GetType(), "newsList", javascript);

This will put the javascript on the page accessible from other javascript functions.