i have a c# application which is use for from design, it creates .kd file on save option , After running application i have to browse my saved files and open them in my application.

but i want a way that that a click on file with .kd extension will open my application with this file data.

i create a overloaded constructor with parameter in my mainfrom class , and try to give parameter in my main function, but i cant work it and finding too many error,
and my main from is midiparent and i want to use the file data in childfrom
is there any other way?, can u give a example or useful link to do that.

thnx for helping, i trying to google it but i m not sure which keywords i will use to search in google:)?