How can I use customfield at dashboard?

[soo jung]

How can I use customfield at dashboard? 

I already create 4-5 custom fields, and use some projects. 

I want to using custom field and  add a gadget at dashboard.

[Jack Brickey]

Most dashboard gadgets rely on filters that you create and save. You can include the custom fields in the filters to deride the results that you are looking for and then associate that filter with any gadget. Now if you are asking how to simply include a custom field within a gadget that depends on the gadget. If you can provide a bit more information on exactly what you’re attempting to do I might be able to help further.