Build string.Format parameters with a loop

Question

I need to dynamically build the parameters for the string.Format function dynamically in a loop.
So rather than coding it like this:
string result = string.Format(formatString, crits[0], crits[1], crits[2], crits[3], crits[4]);
I need to add the parameters dynamically in a loop like this:
StringBuilder sb = new StringBuilder();
formatString = "T{0}{1}-R{2}{3}-{4}";
sb.Append(formatString);
foreach (var item in crits)
// some logic here to determine if this param should be passed in
sb.Append(", " + item);
string result = string.Format(formatString);
Any idea how to do this?
Thanks.

Answer 1

No, what you said the other day was to add a column to the table, but the parameters must come from one source and the where clause must come from another source and I have to dynamically mash them together.  the same set of parameters might be used
with many different syntax in the where clause.
The output for a where clause might look like this:
(LINE_NO = 'TG-P1269') AND (GEO_LOCATION = 'T155N R96W, Sec. 10')
OR
(LINE_NO = 'TG-G1183') AND (GEO_LOCATION = 'T157N R94W, Sec. 20')
OR
(LINE_NO = 'TG-G1182') AND (GEO_LOCATION = 'T157N R94W, Sec. 20')
OR... etc x 1000
but to simplify it lets just work with:
(GEO_LOCATION = 'T157N R94W, Sec. 20')
which I achieved like this:
string formatString = "T{0}{1} R{2}{3}, Sec. {4}";
string result = string.Format(formatString, crits[0], crits[1], crits[2], crits[3], crits[4]);
However, at run time I don't know how many params to pass in or which ones.  I might have to do this:
string result = string.Format(formatString,  crits[2], crits[3], crits[4]);
or this:
string result = string.Format(formatString,   crits[3]);
or something else.
I would be able to determin which params to pass in in the loop, but of course, that's not how the string function works.