double dimensional dictionary in c#

Question

hi all i have visual studio c# winform my winform is connected to my phpmyadmin database. My database has a tbale which contains 4 columns(pincoderequest number service category and service type). how to buil a two-dimensional dictionary structure in c#? In fact i need to build a collection of pincodes in which each pincode contains a collections of request numbers. And each request number contains its personal records(service category and service type). The two-dimensional dictionary collection should look like: pincode==>request number==>personal records--> service category and service type Any help is welcome.

Raja T · Answer

Hello Armel Please refer below links http://www.c-sharpcorner.com/UploadFile/0f68f2/three-dimensional-dictionary-in-C-Sharp/ http://stackoverflow.com/questions/689940/hashtable-with-multidimensional-key-in-c-sharp http://stackoverflow.com/questions/17121045/multidimensional-dictionary-with-add-new-value-if-key-not-in-dictionary