How to choose programaticaly the column to be querried by Linq using PropertyInfo???

Posted by Richard77 on Stack Overflow See other posts from Stack Overflow or by Richard77
Published on 2010-03-27T20:14:15Z Indexed on 2010/03/27 20:23 UTC
Read the original article Hit count: 172

Filed under:
|

Hello,

I would like to control how linq querries my database programaticaly. For instance, I'd like to querry the column X, column Y, or column Z, depending on some conditions.

First of all, I've created an array of all the properties inside my class called myPropertyInfo.

Type MyType = (typeOf(MyClass));
PropertyInfo[] myPropertyInfo = myType.GetProperties(
BindingFlags.Public|BindingFlags.Instance);

the myPropertyInfo array allows me to access each property details (Name, propertyType, etc) through the index*[i]*

Now, how can I use the above information to control how linq querries my DB?

Here's a sample of a querry I'd like to exploit.

var myVar = from tp in db.MyClass
            select tp.{expression};

Expression using myPropertyInfo[i] to choose which property(column) to querry.

I'm not sure if that's the way of doing it, but if there's another way to do so, I'll be glad to learn.

Thanks for helping.

© Stack Overflow or respective owner

Related posts about c#3.0

Related posts about LINQ