Client Side Validation with JavaScript in ASP.NET

I am getting getelementbyid.value but instead of value i am getting valueOf() method in asp.net. When i write getelemnetbyId.value it getting error please help

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Nice..

Nice...

Thanks for the code, buddy !!

good one...

Hello Puran Thanks for article but can u pls elaborate the term /^(\".*\"|[A-Za-z]\w*)@(\[\d{1,3}(\.\d{1,3}){3}]|[A-Za-z]\w*(\.[A-Za-z]\w*) )$/; what does its each character mean. so that it will be helpfull for freshers to write such different validations on thier own.

Thanks very much

Thanks..very helpful for me..

Nice Program,Help a lot to me.. Keep going

it was nice comment was nice

NIce .... Gurujan

NIce .... Gurujan

NIce .... Gurujan

Nice article sir thanks

Hi Puran, Thanks for excellent example, It is soo easy to understan that a learner can easily understand and implement it, i am looking of this kind of expmples in the net and i finally found it, you are doing a great job Puran. Thanks, Naga

Thanks a lot, its really help me

Hello, What is purpose of this btnSubmit.Attributes.Add("onclick", "return validate()")

This article was extremely helpful for javascript validation routines. When dealing with multiple asp.net user controls on the same screen, the built in validation controls for asp.net are not useful. Therefore javascript must be utilized. Very much appreciated for the useful code. Victor Del Prete

Thanks alot .

hi ths is santosh ghorude pls suget me thanking

hi ths is santosh ghorude pls suget me thanking

hi ths is santosh ghorude pls suget me thanking

hi ths is santosh ghorude pls suget me thanking

Object doesn't support this property or method iam getting this error when i am using with two text boxes for the 2nd text box i am getting error

hi Puran, cav we change color of textbox for show error

Hi Puran, Very good article. Can you pls show Datetime validation (mm/dd/yy hh:mm:ss) . Thanks in advance

thank u so much for the validations in java script. can you please tell me what packages are to be included in .cs file for this program

Dear Sir, i see your link this http://www.c-sharpcorner.com/UploadFile/purankaushal/103222006013805AM/1.aspx It a very good code for validation,but actually my program is in asp.net (web application) Please tell me how can i call the function from .aspx page .i want to call this validate function when i will click on my button. Please reply me............... Thank you.

Quality example, thanks Paul

Can you provide C# version for this: Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load btnSubmit.Attributes.Add("onclick", "return validate()") End Sub Regards.

nice way to explaine

in IE, it still submit. How can I fix the problem. Thank you.

thanx for the code. very helpful for me. but if i use html control instead of asp control then how should i implement it. please mail me at [email protected] chandana

how to use required field validation and regular expression when using ajax modelpopup extenter with browser firefox

Hello Puran, Thanks for this article. This is really very helpful. But I have some problem while using it with Ajax Update Panel and Master Page. I am working on Asp.net 3.5 and I am trying to do the same things on a content page which is having a Master page, Ajax Update Panel and Script manager. The error is 'Object Required' Can you please help me if you have anything regarding this. I can send you the code if you want. Any help will be highly appreciated. Thanks

Hi Puran, Thanks a lot for your article which helped me a lot for my validation problem.Its really amazing. Regards Kalandi Charan Acharya [email protected]

sir can u explain this sentence briefly (document.getElementById("<%=txtName.ClientID%>").value=="") and sir what do u meant by" ispostback"?

how is run the script in database

where i have to put the script tag,in HEAD tag or in BODy tag,plz help me, i need it very badly.. and what is use of global.asax and how it use it in my application.... regard pappu

Hi Puran, Thanks Puran for ur article on Validations.You have covered almost all types of validations and gave us a good resource for me and to all the developers.Thanks again Puran.

Can you tell me how to pass arguments into a function using this technique. For instance I have a function that takes a number of the form elements as arguments. Submit.Attributes.Add("onclick", "return IsValidCreditCard(txtCCNumber, txtCCType,cboExpiresDateMonth, cboExpiresDateYear, txtCCCode)") Where txtCCNumber, txtCCType etc. are a values from the froms collection? thanks

System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). I get the above error when attempting to use similar code: I have code as shown: function ValidateEntry() { var PONum1; PONum1 = document.getElementById('<%= PONum1.ClientID %>'); ... } ... <asp:TextBox ID="PONum1" Width="100" runat="server" MaxLength="10"></asp:TextBox> In my code behind page Page_Load event, I use this code: btnSubmit.Attributes.Add("onclick", "return ValidateEntry();"); I don't know why I am getting the error. Please help.

how to validate checkbox is it checked or not by using java script for client side scripting.

pleas give me javascript validation with c# .net code for phone number.

i have to validate ftp server path, below are valid paths 1) ftp:\\10.11.16.32\CDR 2) 120.11.25.154 3) ftp.worldroam.uk.co.in 4)c:\\CDR\Test can any one provide a regular expression which will work for me all above 4 states. thanks in advance.

Thnx for ur article. But there is a problem actually whenever i'm putting my code in jsfile and it's path in master page then this article is not working properly.........plz help me......

I want an image to be displayed only when summary validator shows an error. if there is no errormessage shown summary validator the image should be invisible.Please help me.(Every thing i want it to happen at client side only.....if no errors i want server even to be raised) thanks Vardhan [email protected]

how to hide a block of text after clicking on image at client side like what happens in this same page when i click on '?' button all the data below that goes up & vice versa

var emailRegExp = /^[a-z][a-z_0-9\.]*[a-z0-9]+@[a-z0-9]+[a-z_0-9\.]*[a-z0-9]+\.[a-z]{2,4}$/i. using this kind of regex

hi this is sreekanth this articale is really exlet i hope i am expecting meny more articales like this form u Thanks & Regards Sreekanth Kolluri Software Engineer(.Net) NETSOFT INFORMATICS Pvt Ltd. SCO 441-442, Sector 35-C, Chandigarh (UT) 160022 India Email | [email protected] Voice | 91-172-264-6460, 266-2464 [Board] Fax | 91-172-2646461 [ India ] +1-419-745-0256 [US] Web | www.netsoftglobal.com

I have text box which carries Postal Code and this text box is validated by a reg ex validator. Now I have State Drop down box. When I change the state in drop down box I need to revalidate the postal code text box using that .net reg ex validator. Now here my question is how can I handle such scenario. Please me the solution if any. Deepak Gupta

What if i have a delegate ' server side ' on the same button, it shouldn't be called unless the validation returns true?!

Hi puran, i would like to validate the email id [email protected] but it is not accepting the validation .if there are 2 characters before the "@ "it is valdating but if i have 1 character it is not validating. Thanks in Advance Regards kanth

how to use ajx in asp.net

wot happens to this client side validator if we block Javascript?

I would like to know if this code works for asp.net 2.0 ? I am trying to implement this code to my website but is not working with asp.net 2.0 Is this for asp.net 2.0 or 1.0 anyway?

Thanks for sharing this excellent code. Although it may be obvious to most I’m not sure how you did the email verification. Could you please explain this line of code for me? /^(\".*\"|[A-Za-z]\w*)@(\[\d{1,3}(\.\d{1,3}){3}]|[A-Za-z]\w*(\.[A-Za-z]\w*)+)$/; I can tell that before the @ sign you accept all upper and lower case letters but what do the rest of the symbols represent. Also I’m from Canada and our postal code is 6 characters long but alternate Letter Number Letter Number Letter Number Any Ideas on how to validate for this?

yours was the only blog that solved my query of accessing the asp.net textbox controls through javascript. i was unable to retreve them using document.getelementbyid() until u suggested a differnet way ("<%=txtZIP.ClientID%>"). truly useful thanks

hi document.getElementById("<%=txtZIP.ClientID%>") and document.getElementById("txtPostalcode").value both are used to retrive values from aspx page then pls tel me the diff betwen them quick pls

hi document.getElementById("<%=txtWebURL.ClientID%>"). and document.getElementById("txtPostalcode").value both are used to retrive values from aspx then pls tel me the diff betwen them quick pls

Hello Puran, thank you so much for the article. After I paste the code in the code behind file as you've instructed, i get this error: Name "btnSubmit" is not declared. Please how can I go about fixing this problem. Thanks

hi.. I have two radio buttons on my form n a Report button. On report button click i have 2 check which button is clicked and accordingly open th report. I m confused how 2 do this using document.getElementById on code behind to check. As it needs two clicks to open up the report.

dood

where i have to put the script tag,in HEAD tag or in BODy tag,plz help me, i need it very badly..

Hello Sir, Thanx for your validataion with javascript article....that was realy helpfull.......Thanx. Sir, I want to know about ajax....Will you plz. put a realtime small example of ajax...Thanx and bye...

Thanks Mr purankaushal ur aritical is very helpfull , thanks a lots,please also give the idea how to use error provider in java script in web pages rather than message box for error message Regards, For Oriensoft Technologies Pvt. Ltd.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> Vinay Patel Software Programmer E-mail :- [email protected] Tel: +91-22-67111555 Fax: +91-22-67111666 24 x 7 Support & Sales Toll Free : 1-800-22-5171 (<?xml:namespace prefix = u1 /><u1:place u2:st="on"><u1:country-region u2:st="on">India</u1:country-region></u1:place> Only) Web : http://www.oriensoft.com<o:p></o:p> <o:p> </o:p>

Hi Puran, I would like to thank you for your article. It really helped me a lot in doing validation. I learned a lot from that article. I will contact you further if I have any doubts. Regards, Abdul Sami [email protected]