To warn about the data changes.

[aecordoba]

Hi! I'm newbie in ASP.NET world. My question is: I have a web page (ASP.NET 2.0 with code behind file C#) with some controls, like text boxes, drop down lists and so on. I'd like when an user change any data in any control, and then he/she try to close the browswer or try to leave the web page without save the data, it appear a message box warning that he/she will lose the changes. Note: Script options doesn't work because I'm using master pages and scripts can't be inserted in content file. So I need a code-behind solution. Do you have any idea? Thank you in advance.

-- [Adrián Córdoba]

[Parwej Ahamad]

(1) As per my perception, we can use scripts in Content page. Suppose that you have written few methods in js file called "myjs.js" and then you can access all methods in content page. First add this file in master page like below tag:

(2) Script is only a way that we can handle achieve your requirement

< body onbeforeunload="alert('Closing');">

this is strait way that you shows alert on browser close event. (3) If wants that if something change on your page, then in that case you need to set flag in cookies and with option two (onbeforeunload) event we can check whether something is change or not and then on the basis of that show the alert message.

Parwej Ahamad R & D with IIS 5.0/6.0

[Vasudevan Deepak Kumar]

Would this help you? www.4guysfromrolla.com/webtech/100604-1.shtml[^]

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