searching for my problem lead me to Using ASP.NET to Prompt a User to Save When Leaving a Page by scott mitchell.but i need a simpler way. i wnat to prevent user from leaving page when my FormView is in Update or Insert mode.
آرشیو ماهانه: آوریل 2007
about a day searching for it, just didn’t know must return nothing! Prompting a User to Save When Leaving a Pagehttp://www.4guysfromrolla.com/webtech/100604-1.shtml