Binding Dropdown list in MVC4+ASP.NET - 


@html.dropdownlistfor(model => model._categoryid, new selectlist(viewbag.abc, "_categoryid", "_categoryname"), "select category")

this above code working fine binding dropdown list need understand it.....can elobrate it?

actually confused 

model=>model._categoryid

why required? above line

its expression evaluates property want bind to, in case _categoryid. html helper used generate html attributes used when posting back, in case <select name="_catagoryid" ... value="thevalueofcategoryid">


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