How to check ViewBag contains a specific string

In controller I have:

string[] checkedBoxes 
ViewBag.Funds = checkedBoxes;

checkedBoxes is posted by a form in the view page. How do I check inside the view if ViewBag.Funds contains a specific string?
I tried:

@if (ViewBag.Funds.ContainsKey("a"))

I got this error: RuntimeBinderException: 'System.Array' does not contain a definition for 'ContainsKey'

.Contains() also doesn’t work even though I used @using System.Linq

>Solution :

You have to cast the ViewBag property to the type first. Try this

@if (((string[])ViewBag.Funds).Contains("a"))


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