How do I implement a dynamic 'where' clause in LINQ?

Question

I want to have a dynamic where condition.

In the following example:

var opportunites =  from opp in oppDC.Opportunities
                        


        

Answer 1

Because queries are composable, you can just build the query in steps.

var query = table.Selec(row => row.Foo);

if (someCondition)
{
    query = query.Where(item => anotherCondition(item));
}