AFAIK

In mvc most of the people will face problem how to bind view model list while post request. If a partial control is binding with a list and want to preserve the user input with view model list, most common issue is id/name is same. If the Id/Name are different only MVC engine can bind it with the model. Please see the below example Build the view/partial view in the following way. By keeping a row counter means all items will have unique names. Suppose this partial view is coming inside a View Called MethodName.ASPX and is included inside the Main Page using html.beginform() [httpGet] { <%html.dropdownlist(model=>model.Test, new {onclick=Test(<%=model.Id%>);}); <.div id="dvPopulatePartialViewWithList"></.div> } Javascript function Test function Test(id) {  $.ajax({         type: "Get",         data: "Id=" + Id,         url: '/MyController/GetPartialViewListById',         succes

People who are using entity framework for Dal single dbcontext is going to be a problem in BLL. I use the following structure   I used to get the single dbContext by:- Each single repo class should inherit from base repo class and in base repo class should initialise the dbcontext.   The BaseRepository     public class BaseRepo     {        private readonly bool isNewInstance;        protected OnlineProductLinkEntitiesdbContext;            protected BaseRepository()        {            dbContext = newOnlineProductLinkEntities();            isNewInstance = true;        }          protectedBaseRepository(OnlineProductLinkEntitiesdbContext)        {            isNewInstance = dbContext == null;              if (isNewInstance)                dbContext = newOnlineProductLinkEntities();              this.dbContext = dbContext;        }          protected voidCheckAndTryToOpenConnection()        {            if (dbContext == null)                dbContext = newOnlineProductLinkEntities();