Order LINQ by “string” name

问题

PROBLEM SOLVED!!!

The solution is Linq.Dynamic

You do it like this:

(from c in Context.AccountCharts 
    where c.Account_FK == account && c.Year_FK == year select c).OrderBy(order);

You have to download the System.Linq.Dynamic.dll and include it into your project.

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Is there a way to order a linq query by the name of a field. like this:

from c in Context.AccountCharts 
    where c.Account_FK == account && c.Year_FK == year 
    orderby c["ColName"] select c;

Or

from c in Context.AccountCharts 
    where c.Account_FK == account && c.Year_FK == year 
    orderby c.GetType().GetField("ColName") select c;

None of these two works but I hope you know of a way to do this.

回答1:

I spend to many time to resolve this issue, but didn't find any better than:

var queryExpression;
if (c["ColName"]=="CreateDate")
    queryExpression.OrderBy(x => x.CreateDate);

回答2:

Hope this will work too though not tested

Context.AccountCharts.Where(c=>c.Account_FK == account && c.Year_FK == year).OrderBy(o=>o.order); 

来源：https://stackoverflow.com/questions/4465147/order-linq-by-string-name