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Refreshing the asp.net web page after validation

Answer 1

+4 A:

Response.Write writes directly to the output stream, placing it before <html> which the browser gets very confused by (causing your text issues). What you want to do instead is this:

ClientScript.RegisterStartupScript(GetType(), "alert", 
                                  "alert('Please select Alpha or Beta');", true);

ClientScript.RegisterStartupScript includes the script in the page to be run on load rather than put in the response too early. The last argument: true is telling it to wrap that alert in <script> tags, keeping your code-behind cleaner.

Nick Craver 2010-04-09 14:40:34

wow. This works great. Thanks Nick

user279521 2010-04-09 14:45:08

Answer 2

A:

When you call Response.Redirect, that occurs on the server side, whereas you want the redirect to occur on the client side after a choice is made.

To do that, when you write your script with Response.Write (btw, there are much better ways to do this), you would have logic that determined what the user selected, and then based on the selection, either requery them for data, or set the location property of the inherent document object to the url you want to redirect to.

casperOne 2010-04-09 14:42:23

Answer 3

+1 A:

The best way to handle this would be to use Javascript and do Client side validation. If you really want to do server side validation then instead of showing a alert by using Response.Write you should use RegisterStartupScript or better show the message using a Label at the top.

HTH

Raja 2010-04-09 14:42:28

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Refreshing the asp.net web page after validation

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