how to use resource file in windows form application?

Using resource file you can embed the files like Images, Sounds etc as part of your binary. It means that you no need to worry about packaging the such files (say .jpg, .wav) and deciding the location of those files in the deploying pc.

The disadvantage is that binary file(.exe,.dll etc) size increases.

You can see a example here

hi,

try following code retrieve string from Resource file.

System.Resources.ResourceManager rm = new System.Resources.ResourceManager("nameofResourcefile", System.Reflection.Assembly.GetExecutingAssembly());
System.Globalization.CultureInfo ci = new System.Globalization.CultureInfo("en-US");
rm.GetString("someString", ci);

Key benifit

Resource files give you an easy way to localize/internationalize in .net applications.
Resource files give you a central location to store your strings, files and scripts and refer to them in a strongly-typed manner.
Resource files can be compiled into satellite assemblies, making it easy to change up the resources in a production application without having to recompile the whole thing.

hope this will help you.