Is it possible to delete file via API?

Yes. See https://www.dropbox.com/developers/core/docs#fileops-delete for the HTTP documentation, or check the documentation for the language you're using.

Thank you

Hi I'm trying to use delete method in . Net but there is no luck. Failed with exception wrong path. There is no where documentation regarding what is the path that required. The only thing is that the path is a string. Please provide an example of correct path do I need to send

The path you would specify is the path to the file in the Dropbox account that you want to delete. For example, to deleted a file called "test.docx" in a folder named "Documents" in the root of the Dropbox, the path would be "/Documents/text.docx".

This is the same path you get from metadata elsewhere in the API, e.g., from the GetMetadata or ListFolder methods.