visual studio 2010 - Click Event Keep resetting in VB.NET -

visual studio 2010 - Click Event Keep resetting in VB.NET -

just wonder can help me. writing code in vb.net 2010 connect tfs 2010.

let when create command button called 'save' , write code under -

private sub cmdsave_click(byval sender system.object, byval e system.eventargs) handles cmdsave.click xxxxxx xxxxx end sub

but in few days later, when select 'save' button, doesn't anything. doesn't go 'cmdsave_click' event.

so have is, go form , double click in on 'save' button. create cmdsave_click_1 1 time again , have move code function.

anybody know why happening , how prepare issue?

i appreciated if help me how prepare this.

thanks.

vb.net visual-studio-2010