c# - XtraGrid binding inherited object -

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i have 1 base class , 2 inherited classes. according configuration of application must bind customer1 or customer2 xtragrid:

public abstract class mybase {     public int itemid { get; set; } }  public class customer1 : mybase {     public string name { get; set; }     public datetime birthdate { get; set; } }  public class customer2 : mybase {     public string name { get; set; } }

now, binding code:

    customer1 c1 = new customer1();     c1.itemid = 1;     c1.name = "n1";     c1.birthdate = datetime.now;      bindinglist<mybase> tmplist = new bindinglist<mybase>();     tmplist.add(c1);      gridcontrol1.datasource = tmplist;

but grid display itemid field derived mybase class.

could pls help?

thanks.

the simple answer - cannot that. not specific xtragrid, controls use list data binding. when use list<t>, bindinglist<t> etc. typeof(t) extracted , used item type retrieve bindable properties. note none of these classes (and ilist<t> in general) supports variance, cannot use base class generic parameter. use concrete class when instantiating list/bindinglist plan use data source (in case - bindinglist<customer1> or bindinglist<customer2>).


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