Looking for simple way to build Linq dynamic / conditional expression

Looking for simple way to build Linq dynamic / conditional expression

Given tables as:
Table1
id
stringfield1
stringfield2
stringfield3
stringfield4
Table2
id
table1_id
stringfield1
datefield1
Given a UI allow user to make fency query on:
dropdwonlist1 with any and table1.stringfield1 values
dropdwonlist2 with any and table1.stringfield2 values
dropdwonlist3 with any and table1.stringfield3 values
dropdwonlist4 with any and table1.stringfield3 values
dropdwonlist5 with any and table2.stringfield1 values
dropdwonlist6 with [any, the, before, after, between]
calendar1 to link with table2.datefield1
calendar2 to link with table2.datefield1
And as result datagridview with everyfields.
I want to build conditional query as if not "any" add this condition.
Considering that, simple LINQ query is not applicable:
Table2
.Where(x => x.stringfield1 == dropdwonlist1.SelectedValue)
.Where(x => x.stringfield2 == dropdwonlist2.SelectedValue)
.Where(x => x.stringfield3 == dropdwonlist3.SelectedValue)
(...)
There is Expression trees in documentation but that looks too much.
Is there simplest way to build my dynamic query ?