Pass data between two web pages on the same machine with no postback

Question

I am creating a web page that offers the user the ability to "undock" a control into a new browser window. When the user selects a value in the new window, I need to have the new page pass data to the parent page and update some information on the screen. Basically, I need to keep the data displayed in sync. I am using jQuery and AJAX to avoid any postbacks and I would want to do the same for this. For example: The user does a search for "foo" on parent page and wants to see the results in a larger format. He clicks the "undock" button and larger window opens with the search results. The user selects a value from the child window and the parent window is updated as well. I would think I could accomplish this with AJAX but have yet to find a good post explaining it. Does anyone know how this can be done?

Also, if the child windows gets closed and I don't capture the close because of a browser crash, is there a way the parent can check to see if the child is still there?

Thanks!

Answer 1

您可以尝试使用socket.io ，但是对于您的情况来说可能会过分...

Answer 2

check out, if this works for you:

http://www.wintellect.com/CS/blogs/jprosise/archive/2011/03/10/using-html5-web-storage-for-interprocess-communication.aspx

cheers sascha

Answer 3

您不能在子窗口中使用window.parent吗？

Answer 4

To do your undock, are you using window.open? You can use window.opener to communicate between two windows: http://www.w3schools.com/jsref/prop_win_opener.asp