Initializing (Entity) object by calling (get) property dynamically. Entity Framework , c#, ASP>NET
I have below piece of code:
I have below piece of code:
var items = from c in contacts select new ListItem { Value = c.ContactId, //Cannot implicitly convert type 'int' (ContactId) to 'string' (Value). Text = c.Name }; var items = from c in contacts select new ListItem { Value = c.ContactId.ToString(), //Throws exception: ToString is not supported in linq to entities. Text = c.Name }; … Read more
In my EF later, I’m trying to pass in an anonymous function to be used as part of my Linq query. The function would pass in an INT and return a BOOL (u.RelationTypeId is an INT). Below is a simplified version of my function:
I’m trying to make an educated decision about what ORM to use for a number of legacy applications I’m responsible for porting to MVC 2. The ORMs I’ve looked at are LINQ to SQL, LINQ to Entities and nHibernate. L2S seemed to be the easiest, but I’ve found numerous articles and blog entries stating that Microsoft would no longer be updating it after .NET 3.5. With that in mind, I’ve been working with Entities a bit, but have found that it is cumbersome and overcomplicated for the small applications I’m working with (same with nHibernate). I recently purchased “Pro ASP.NET MVC 2 Framework” by Steven Sanderson, in which he chose to use LINQ to SQL as his ORM, at one point stating:
I’m basically trying to construct a query, and I don’t know why microsoft made this so difficult in Entity Framework and LINQ. I have various parameter STRINGS. So if you see a variable, assume it’s a string passed in from somewhere.
I am a new ASP.NET developer and I am trying to learn Linq-To-Entities. I am trying to bind a DropDownList with the Linq statement for retrieving the list of status in the Status Entity. Everything is working fine. However, I am trying now to add “Select” option to the DropDownList but It doesn’t work with me.
Could you please tell me how to fix this?
I have writting a LINQ query to fill a listview but it useses the .ToString() method which apparetly is not allowed. When I use the below code I get the error message:
I want to give users the possibility to dynamically add new columns at the runtime. I am using the Entity framework v1 …