vb.net - writing content of listbox to a txt file and then opening it -

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i trying save contents of 1 listbox txt file , open , printing second listbox. have done of this, actual file not txt file. can u show me how make file txt file using code? if not possible can u show me code can?

private sub loadbutton_click(byval sender system.object, byval e system.eventargs) handles loadbutton.click     if openfd.showdialog() = dialogresult.ok         dim lines = file.readalllines(openfd.filename)         listbox2.items.clear()         listbox2.items.addrange(lines)     end if end sub  private sub savebutton_click(byval sender system.object, byval e system.eventargs) handles savebutton.click     if savefd.showdialog() = dialogresult.ok         using writer = new streamwriter(savefd.filename)             each o object in listbox1.items                 writer.writeline(o)             next         end using     end if end sub

you can use file.writealltext method (along string builder). opinion, it's cleaner code.

private sub savebutton_click(byval sender system.object, byval e system.eventargs) handles savebutton.click     if savefd.showdialog() = dialogresult.ok         dim sb new system.text.stringbuilder()          each o object in listbox1.items             sb.appendline(o)         next          system.io.file.writealltext("c:\mypath\output.txt", sb.tostring())     end if end sub

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