multiple app.config in c# solution -

i have c# solution having multiple projects. in solution, there 'app.config' file. file imported in 2 or 3 projects. these projects have own 'app.config' files in respective folders.

not, doubt if

configurationmanager.getsection("section_name") 

then of config files values read?

also, there difference in way these 2 config files interpreted. mean app.config (with capital a) , app.config.

thanks.

it application / project running. if running visual studio project have set setup project. can tell name in bold

if have multiple projects starting use own app.config files.