CODEWITHSUNDEEP
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Reputation: 277

About foreach loop of list of objects

I can't see what's wrong with this code:

var listShoppingCart = Session["ShoppingCart"];

foreach (var item in listShoppingCart)
{

}

I get a red line below the listShoppingCart in the foreach loop. When I hover over the red line, the messages is that Foreach statement cannot operate on variables type 'object' because 'object' does not contain a public definition for 'GetEnumerator'

I declare the list with a session like this:

Session["ShoppingCart"] = new List<Products>();

Upvotes: 0

Views: 96

Answers (2)

ManojAnavatti
ManojAnavatti

Reputation: 644

Because Session is of Type HttpSessionState and this implements ICollection. Session values are stored in Dictionary<string,object> which implements ICollection. You need to type cast object to appropriate to enumerate over your list.

Upvotes: 0

Jason Evans
Jason Evans

Reputation: 29186

You need to cast the session object

var listShoppingCart = Session["ShoppingCart"] as List<Products>;

if (listShoppingCart != null)
{
    // Do stuff...
}

In the above code, we get the object located in the session at key "ShoppingCart" and cast that object to a List<Products>. If the cast cannot be done, then listShoppingCart will be null.

Upvotes: 5

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