Create/Inherit a Custom control ( A descendant-class) from Devexpress AspxcomboBox

 Create A custom Control derived from devexpress AspxcomboBox / Devexpress AspxCombobox Descendent with custom properties.  We plan to build a custom control derived from AspxCombobox. It will have custom features like below build in:  Sample code: Public class MyASPxComboBox: ASPxComboBox { Public MyASPxComboBox () { [login to view URL] = [login to view URL]; //Set Combo Type this.TABLENAME_FIELD = CustomerData.CUSTOMERS_TABLE; this.ID_FIELD = CustomerData.CUSTOMERID_FIELD; this.NAME_FIELD = CustomerData.NAME_FIELD; /// [login to view URL] = "CustomerLeadsComboBox"; [login to view URL] = "Office2010Blue"; [login to view URL] = [login to view URL]; [login to view URL] = [login to view URL]; [login to view URL] = 50; } }  These Custom controls should be reusable across multiple web pages.  For e.g., if we create a product Combo box or a Customer Combo box, we should be able to use it in sales order as well as sales quote or any other inventory web forms.  The comboboxe’s Data source, tables, key fields, value field, text field all should be set from the web page that contains it.  The combo should inherit all the properties of a normal devexpress combo box like sorting, paging, grouping etc. and will have multicolumns.  Control Should not loss its data during postback