Comments on: ASP.NET AJAX username availability check

By: santhosh

santhosh — Fri, 05 Mar 2010 07:34:42 +0000

Good but it is much better if you pass text of text box in where condition in query.. just check if it returns any rows it is not available else it is available.. No need to get all rows and then checking…

By: siva

siva — Mon, 14 Dec 2009 13:25:30 +0000

Its very nice and simple to use…
Great work. Thanks.

By: Neil

Neil — Fri, 20 Nov 2009 11:39:07 +0000

Thanks, just what I was after.

By: gomzy

gomzy — Sun, 25 Oct 2009 18:14:08 +0000

gonna try this with sql server and asp.net ajax today

thanks for the tutorials

By: Dave Ward

Dave Ward — Mon, 15 Jun 2009 15:22:44 +0000

I would recommend using a web service or page method. They both allow multiple requests to run simultaneously.

By: trung pham

trung pham — Fri, 12 Jun 2009 06:58:56 +0000

if i have to check username and email then what can i do in add_initializeRequest(InitializeRequest) of page request manager? if i do not want both waiting for process of username and email run at the same time?

By: Biren

Biren — Mon, 02 Mar 2009 14:21:09 +0000

Thanks

It’s Really Good….

By: Искусство и программерский dzen » Проверка имени на занятость.

Искусство и программерский dzen » Проверка имени на занятость. — Fri, 09 Jan 2009 15:16:30 +0000

[...] Хороший пример реализации скрипта для проверки имени пользователя на занятость без перезагрузки.Правда подойдет он не всем, потому что предназначен для Asp.net. Страничка автора. [...]

By: JasonR

JasonR — Tue, 09 Dec 2008 09:27:18 +0000

My version of this is currently not working in Google Chrome 0.4.154.29 (latest currently out) although it does work in Firefox, IE7, and Opera (also based on WebKit). I’ll debug it at some point (probably a bug in Chrome), but it isn’t too high a priority for now. If anyone else has seen this problem and figured out a fix, please let us know.

By: Dave Ward

Dave Ward — Sat, 18 Oct 2008 21:23:17 +0000

Do you have an ASP.NET Membership Provider for your Access database? If you’re just using an ad-hoc “users” table in Access, Membership.GetUser() won’t work.

By: svk

svk — Sat, 18 Oct 2008 07:23:54 +0000

used the following code depending on above but no msg is displayed

can anybody tell whts the mistake

hello msg is displayed but after that nothing
Public Sub Username_Changed(ByVal sender As Object, ByVal e As EventArgs)

MsgBox(“hello”)
If Membership.GetUser(Username.Text) IsNot Nothing Then
MsgBox(“Exists”)
UserAvailability.InnerText = “Username taken, sorry.”
‘ UserAvailability.Attributes.Add(“class”, “taken”)

Else

UserAvailability.InnerText = “Username available!”
‘ UserAvailability.Attributes.Add(“class”, “available”)
End If

End Sub

By: svk

svk — Sat, 18 Oct 2008 07:20:46 +0000

the code as given by u with few changes is not wrking
i am using access2003 database and asp.net with vb code behind
used te following code in codebehind page

Public Sub Username_Changed(ByVal sender As Object, ByVal e As EventArgs)
msgbox(“hello”)
If Membership.GetUser(Username.Text) IsNot Nothing Then
MsgBox(“Exists”)
UserAvailability.InnerText = “Username taken, sorry.”
‘ UserAvailability.Attributes.Add(“class”, “taken”)

Else

UserAvailability.InnerText = “Username available!”
‘ UserAvailability.Attributes.Add(“class”, “available”)
End If

End Sub

but when focused out of text box nothing happens
in this the hello msg is displayed but no msg as per the textbox value.
can u tell whts the mistake

By: joyson arul

joyson arul — Wed, 06 Aug 2008 09:51:46 +0000

I checked this code. But unfortunately the particular page client side validation is not working. So give me the solution also.

By: ASP.NET AJAX username availability check « Wiki ASP.NET

ASP.NET AJAX username availability check « Wiki ASP.NET — Wed, 02 Jul 2008 02:21:26 +0000

[...] Posted by Slayter on July 1, 2008 ASP.NET AJAX username availability check with UpdatePanel [...]

By: Dave Ward

Dave Ward — Wed, 05 Mar 2008 17:01:05 +0000

You can download the full source for the example on this page.