solrnet crashes if you add a lot of filter queries
Solution 1:
I think I found it. Instead of concatenating the fields in a for loop:
solrQueryByField = solrQueryByField || new SolrQueryByField(filterVeld, filterValue);
... I simply use SolrQueryInList:
queryOptions.FilterQueries.Add(new SolrQueryInList(filterVeld, filterValues));
With this change, it started working...