MVC2 : Passing string Array in ViewData, not able to use in Javascript

Question

Below is the controller action which returns Arrays in ViewData.

  ViewData["arrayTotalCertificateCount"] = arrayTotalCertificateCount;
        ViewData["_CertificateCategory"] = _CertificateCategory;
        ViewData["arrayCodeSeries"] = arrayCodeSeries;
        ViewData["arrayCodeCounts"] = arrayCodeCounts;

        return PartialView();

Now, in View, javascript, I am not able to access them.

Below is the code I have written in View Javascript.

 var arrayTotalCertificateCount = new Array();
    var i =0;

    for(var item in <%= ViewData["arrayTotalCertificateCount"]%>)
    {    
        arrayTotalCertificateCount[i] = item;
        i=i+1;
    }

It throws error like -

 for(var item in System.String[])
Uncaught SyntaxError: Unexpected token ]

Can anyone please help me to convert this ViewData array in javascript array variable?

Satpal · Accepted Answer · 2013-07-02 06:36:38Z

1

Try this

<% var serializer = new System.Web.Script.Serialization.JavaScriptSerializer(); %>
var arrayTotalCertificateCount = <%= serializer.Serialize(ViewData["arrayTotalCertificateCount"]) %>;
for(var item in arrayTotalCertificateCount )
{    
   arrayTotalCertificateCount[i] = item;
   i=i+1;
}

edited Jul 2, 2013 at 6:36

answered Jul 2, 2013 at 6:30

Satpal

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3 Comments

Mittal Patel Over a year ago

Satpal, thank you so much for quick reply. I tried your solution and I got rid of that error message. but Now I am getting below error. I think it is because of the space with numbers. I am not sure. var arrayTotalCertificateCount = "["5"," 5"," 1"]" Uncaught SyntaxError: Unexpected number Any idea, can I use item.Trim()?

Mittal Patel Over a year ago

Satpal, one more questions regarding this. I am getting CodeSeries as '70-158,70-169,70-181' from the controller and when I serialized it with var arrayCodeSeries = "<%= serializer.Serialize(ViewData["arrayCodeSeries"]) %>"; I am getting error message like - var arrayCodeSeries = "["\u002770-158,70-169,70-181\u0027","\u002770-158,70-177,70-181\u0027","\u002770-680\u0027",null,null]"; Uncaught SyntaxError: Unexpected token ILLEGAL --------- Can you please guide me on this?

Mittal Patel Over a year ago

I tried with var arrayCodeSeries = '<%= serializer.Serialize(ViewData["arrayCodeSeries"]) %>'; and it worked fine.. Thanks

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