ASP.NET

public ArrayList GetProductList
{
  if(ViewState["ProductList"]==null)
  {
     ViewState["ProductList"] = new ArrayList();
  }
  return (ArrayList)ViewState["ProductList"];
}

public void AddProduct(int productId)
{
  if(ViewState["ProductList"]==null)
  {
    ViewState["ProductList"] = new ArrayList();
  }

  ((ArrayList)ViewState["ProductList"]).Add(productId);
}

AddProduct(productId);

foreach(int productId in GetProductList().Items)
{
  //execute code for productId
}

Mohammed Gouda wrote:

BUT, I can not create a custome control from a generic class (I think)

Abhijit Jana wrote:

why ?

class YourClass
    {
        public Type Property1Type { get; set; }

        object property1;
        public object Property1 
        {
            get { return property1; }
            set
            {
                if (value.GetType() == this.Property1Type)
                    property1 = value;
                else
                    throw new Exception("Invalid type");
            }
        }
    }

YourClass a = new YourClass();
a.Property1Type = typeof(System.String);
a.Property1 = "Hello";

class YourClassInGenerics<Property1Type>
{
    public Property1Type Property1 { get; set; }
}

YourClassInGenerics<string> yourClass = new YourClassInGenerics<string>();
yourClass.Property1 = "Hello";

N a v a n e e t h wrote:

If you could tell me why you need this, there may be better ways to do this.

N a v a n e e t h wrote:

If you don't want designer support for this control you can use generic parameter with the class declaration. Then the code will be pretty nice.

Mohammed Gouda wrote:

I created an abstract class from which I inherited all other classes of which objects may be bound to my new datasource

Mohammed Gouda wrote:

You are one of the best of CP

N a v a n e e t h wrote:

Controls like GridView/Repeater supports data binding objects which has IEnumerable implemented. Your control also could do something similar.