Validation

validation

Great Reads

HandlEdInput - Powerful and Highly Customizable Input Handler for TextBox, RichTextBox and ComboBox

by Edwyn Amador

Handles and validates input typing and pressed keys in TextBox, RichTextBox and ComboBox, displaying custom balloon tips messages

ASP.NET CheckBoxList Client Side Validation using JavaScript

by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

In this blog, we will explore a trick to validate whether any CheckBox inside one CheckBoxList is checked or not.

Validating Incoming JSON using Upida/Jeneva

by vladimir husnullin

Web development using JSON is simple

Mimick - A Fody Aspect-Oriented Weaving Framework

by Chris Copeland

A managed library for automated dependency injection, contract validation, and custom aspect-oriented decorator implementations

Latest Articles

Web Page Form Validations with Angular

by Han Bo Sun

Several ways of form field validation using Angular framework

StringBox Control with Keystroke Validation

by siliconvideo

This StringBox control implements keystroke validation using regular expressions and a touch of glue logic

Mimick - A Fody Aspect-Oriented Weaving Framework

by Chris Copeland

A managed library for automated dependency injection, contract validation, and custom aspect-oriented decorator implementations

NumberBox Class for Number Entry/Display

by siliconvideo

A NumberBox class for number entry, display, range limits and keystroke validation including binary

All Articles

top

Validation

Mvvm validation - model o viewmodel?

5 Nov 2018 by #realJSOP

Validation should be performed in the view or viewmodel. Check this article: Validation in WPF[^]

WPF

MVVM

validation

Wpf MVVM, how to disable command based on error on conversion failing with iNotifydataerrorinfo through the viewmodel?

13 Nov 2019 by #realJSOP

You don't disable commands - you disable the controls that invoke them. The view should be able to detect the error status and disable a control based on that status. That's how it's supposed to work.

WPF

MVVM

validation

Validating Text box in Visual Basic

5 May 2011 by 555336

Hello, I have textbox on my form, the details are below:So, I want to know, how to NOT save this pretext on the textbox also? I mean only blank field and the pretext must not be saved if the user has not typed anything on the textbox.

text

validation

validatation of max 9 or 10 digits.

13 Sep 2012 by __TR__

You can use length[^] property in JavaScript to validate the text box input in onchange[^] event.You can use isNaN()[^] to check if the value entered is numeric or not.

validation

How to validate for Text box in Javascript

26 Jul 2012 by _Amy

Have you tried searching Google[^]? Never feel lazy to use google.. --Amit

Javascript

validation

How to validate textbox inside gridview to accept numeric values only

3 Aug 2012 by _Amy

Hi,Try this:HTML:JAVASCRIPT://Restrict the user to key-in chrectors and other special charectorsfunction onlyNumbers(evt) { var e = event || evt; // for trans-browser...

text

numerics

validation

requiredfieldvalidator to html control without runat="server"

12 Sep 2012 by _Amy

It's not possible to validate a HTML control using RequiredFieldValidator. If you want to validate your HTML control client side only then you need to use JavaScript.RequiredFieldValidator is used only for server controls.--Amit

Date format problem in CompareValidator

19 Aug 2012 by _Amy

Hi, Try setting the property CultureInvariantValues="true" in your CompareValidator .--Amit

ASP.NET

CalendarExtender

validation

Regex for alphanumeric

6 May 2014 by _Asif_

Try below one. ^[A-Za-z0-9]{6,15}$-Asif

How to remove the client side validation dynamically

6 Oct 2014 by _debasis

Hi Mahesh, I think you can try with this rules( 'remove', rules ); Hope this helps. Thanks

A framework for comprehensive validation of user input

19 Jun 2012 by A. Ganzer

Validation of input made as easy as possible for Windows.Forms, WPF, console-applications or any other purposes

10 Mar 2013 by A.Ebrahimi

Problem : fill Drop-down list with state and city, by Ajax on client side. Then on post-back this will raise error : Invalid post-back or callback argument...I have found this look at this Microsoft code:

validation

How to prevent special characters in datagridview using vb.net

16 Jan 2014 by Aarti Meswania

if you want that user can not insert any special char then handle it in cell_keypress eventand if e.key is special char then handle it using e.handle = true;Happy Coding!:)

DataGridView

validation

i need a simple javascript form validation

3 Jul 2013 by Aatif Ali from Bangalore

You can refer following linkshttp://webcheatsheet.com/javascript/form_validation.php[^]http://www.w3schools.com/js/js_form_validation.asp[^]Aatif Bangalore

validatation of max 9 or 10 digits.

13 Sep 2012 by abcforcode

you can use maxlenth property of textbox, by using this property you are able to give length of your choice.

validation

textbox to enter only alphabets.

15 Jul 2012 by Abdul Quader Mamun

var value = "a";var reg = new RegExp("[A-Za-z]");if (!reg.test(value)) { return false;}try with this.Thanks,Mamun

Javascript

ASP.NET

validation

NEDD help with email validation in jquery

19 Jun 2011 by abdulmaajid

Hi, This is my email validation using Jquery , email: function(value, element) { // contributed by Scott Gonzalez: http://projects.scottsplayground.com/email_address_validation/ return this.optional(element) ||...

Is any free JavaScript class common for all type of client side form validation?

4 Oct 2013 by abey e mathews

Is any free javascript class common for all type of client side form validation(Javascript)?

Javascript

validation

Validation Errors in Validation Summary only

9 May 2012 by Abhi KA

try this linkhttp://www.aspxcode.net/free-asp-net-validation-source-code.aspx?Topics=How%20to%20Use%20ValidationSummary[^]

ASP.NET

validation

Validate the text file using c#

11 Jun 2014 by abhicoolhot

Hi,Am creating one executable file using c# which has to validate the content of text file present in fixed length format (say for fixed length is 30). In case if fixed length was not in defined format then it should be caught in exception.Please advice am not getting the scratch to...

validation

Remove the content in cell using c#

11 Jun 2014 by abhicoolhot

Hi,Can you advice how to clear the content of the cell (B2:E4) in excel sheet using c#.

validation

How do you localize validation messages?

11 Dec 2010 by Abhinav S

A good discussion here[^].

validation

locale

Validate maximum, minimum values in grid view using java script

1 Jan 2012 by Abhinav S

If you want to use Javascript, here[^] is a sample article that you can look at.You can also look at integrating validation controls with the gridview at runtime as discussed here[^].

How can I declare "disregard the disabled text boxes when validating?"

8 Jul 2012 by Abhinav S

That is not too difficult.Try if ((myControl.Text.Length != 7) && (myControl.Name.ToString() == "txtTelNo") && (myControl.Enabled)).

validation

How to validate textbox inside gridview to accept numeric values only

3 Aug 2012 by Abhinav S

Have a look at the RequiredFieldValidator[^].This article[^] should also give you some updates.

text

numerics

validation

how to restrict user not to enter other numbers in textbox

18 Jan 2013 by Abhinav S

The easiest would be to handle the keydown[^] event and only allow 12 to be entered.Some other articles that might provide some insight -http://help.dottoro.com/ljlkwans.php[^]http://blog.pothoven.net/2008/05/keydown-vs-keypress-in-javascript.html[^]

ASP.NET

validation

DataType.EmailAddress not working in asp.net mvc 3

22 Jan 2014 by Abhinav S

[DataType(DataType.EmailAddres...

MVC3

validation

Simple client and server side validation framework in Java

6 Jun 2012 by abhinav_soni

Very simple XML based framework for client and server side validation frameworks in Java.

textbox to enter only alphabets.

15 Jul 2012 by abhinavvijay

function onlyAlphabets(e, t) {try {if (window.event) {var charCode = window.event.keyCode;}else if (e) {var charCode = e.which;}else { return true; }if ((charCode > 64 && charCode 96 && charCode

Javascript

ASP.NET

validation

Is there any alternative of data annotations in MVC ?

4 May 2020 by Abhishek Duppati

An alternative for Data Annotations in MVC would be the Validation Application Block. We can consider using the Validation Application Block if we want to encapsulate validation good practice into easily maintainable code that can be reused. With...

MVC

DataAnnotation

validation

validation errors in asp.net

27 Jan 2013 by Abhishek Pant

Hi Ranga,Change validation group for cancel button(I changed to 0) this will generate validation error(if required fields are blank) only when you click save button in your webpage.

validation

How to insert secret question and answer using ASP.NET membership?

16 Jan 2011 by abi1988

I am using asp.net membership for my web application.I need my users to choose their own secret question and answer in a separate page after their successful login.What is the method to insert the secret question and answer into database using asp.net membership?

ASP.NET

validation

Please Help !! RequiredFieldValidator is not working

4 Feb 2014 by Abid Shk

remove the property display none of requiredfieldvalidatorprovide initial value to requiredfieldvalidator

validator

editing

validation

Please Help !! RequiredFieldValidator is not working

4 Feb 2014 by Abid Shk

suppose initial value is 0 assign this value to ur textbox at design time or load time when user change this value to 10 and again insert 0 then it will work its better u use javascript function valid() { var v_type =...

validator

editing

validation

Beep and MessageBeep functions

12 Jan 2012 by Addy Tas

Hi,From the trail I can't directly figure out if you're just not happy with the frequency of synchronous call and/or you can't get the async to work. If the latter is the case I suggest that you post the non working code.Anyway what may be of interest for you is to check out a third...

Hiddenfield use in asp.net

26 Jul 2013 by Adhiraj Jaryal

I've made this vdeo, just now..... Hope you will be benefited ... Have a nice time.....http://www.youtube.com/watch?v=LAHkjpZxTiM[^]

ASP.NET

controls

validation

Dependent DataAnnotations MVC

10 Jun 2015 by Adil S

I was asked a question in an interview regarding validation with data annotations in MVC.I have a drop down list and two text boxes.If some value is selected from the drop down (say "XYZ"), then the apply validation on textboxes to be required else, textboxes can be left blank on...

MVC

DataAnnotation

validation

server side validation does not work?

2 Jan 2013 by Aditya Magotra

hi,Set property ValidateEmptyText="true" for custom validator

ASP.NET

validation

server side validation does not work?

2 Jan 2013 by AdityaPratapSingh

ASP.NET

validation

Error checking for beginner program (problem with ASCII subtraction of two-digit numbers)

10 Feb 2011 by Aescleal

There's a simple C++ idiom you can use to read an object of any type with an extraction operator and check to see if it's been read successfully. It's only a couple of lines:int n = 0;if( std::cin >> n ){ std::cout

C++

validation

What is the simplest way to validate the controls in UWP?

21 Jun 2016 by Afzaal Ahmad Zeeshan

What do you mean by validating the controls? The data of the controls is validated, instead of the XAML controls. You can do so, such as, Suppose you have to "validate" that the user must enter the username to be of length 5-25. You can validate the input using the C# code (or VB.NET if...

Windows

XAML

validation

How to solve AMP errors?

29 Jul 2019 by Afzaal Ahmad Zeeshan

All the errors are self-explanatory, what help you want? I will talk about a few, the first error that I see in the line is, Quote: The attribute 'href' in tag 'link rel=stylesheet for fonts' is set to the invalid value '//ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/themes/base/jquery-ui.css'....

how to validate textbox with numbers

16 Jul 2012 by Afzal Shaikh

Use below regular expression.change ControlToValidate with the textbox name and ValidateGroup.

Javascript

ASP.NET

validation

Wpf MVVM, how to disable command based on error on conversion failing with iNotifydataerrorinfo through the viewmodel?

15 Nov 2019 by Ahmad_kelany

Hello everyone, I have a ValidatableBindableBase class that implements INotifyDataErrorInfo interface, and INotifyPropertyChanged interface. The validations depending on data annotations and the custom validations are working fine. The problem is when the text box fails to convert the input...

WPF

MVVM

validation

VB 10 : how to check null value in datagridview cells

10 Sep 2017 by Akbar Giffary

hi, i want to test/check when cells in data gridview is empty and when clicked it shows label like "there's a empty data in cell", thanks before If dgvdatakaryawan.Item(e.ColumnIndex, e.RowIndex).Value.ToString.Length = Nothing Then lblKET.Visible = True Else ...

How To clear The Validation Error Message

31 Jul 2013 by akhil.krish

Hi iam using clear function Public Sub ClearTextBox(ByVal root As Control) For Each ctrl As Control In root.Controls ClearTextBox(ctrl) If TypeOf ctrl Is TextBox Then CType(ctrl, TextBox).Text = String.Empty End...

ASP.NET

validation

How do I Validate data in ASP.NET MVC Entity Framework without saving it

31 Aug 2015 by Alexander Siniouguine

You should be able to get errors when settings the parameters: Employee emp = new Employee(); try { emp.IdNumber = 9999999; } catch (ValidationException ex) { ...

validatation of max 9 or 10 digits.

13 Sep 2012 by Ali_100

well now i have a textbox ,i have to validate it on blur that it must enter only 9 or 10 number of digits& another textbox has to be validate byI am working in asp classic.well now i have a textbox ,i have to validate it on blur that it must enter only 9 or 10 number of...

validation

Using validationhelper in MVC razor

26 Mar 2017 by aln668

I'm trying to create a page where users enter some numeric fields, which are then processed by an external dll on the server. Calculation requires client-side validation, such as on intervals (calculation takes a long time, because it's very complex). These intervals are saved on the database...

MVC5

ASP.NET

validation

Windows authentication is clint side validation or server side validation?

12 Dec 2012 by Am Gayathri

Windows authentication is Clint side validation or server side validation?

How can i validate Dataset ? How can i display if it returns no record?

22 May 2013 by Am Gayathri

My application is developed in vb.net.How can i display a message if my dataset retries no record?please helpi tried if (dataset.table.count >0){}else{ message}end ifbut it doesn't showing message if table has no records.so please share your valuable thoughts

I want the system to ignore the disabled textboxes when validating the input length.

8 Jul 2012 by AmitGajjar

Hi,Here is one of the solution,1) You need to use ASP.NET validation control instead of manual validation from codebehind.2) You need to assign validation group property from code behind. Useful linksValidation Group MSDN[^]Validator Controls in ASP.NET[^]Validation...

validation

How to prevent execution of code when server side validation false

31 Aug 2012 by AmitGajjar

Hi,You can use Page.IsValid[^] property to check if validation succeed. if it returns false then you should not insert your record in database.So this property will be checked before insert function.Thanks-Amit Gajjar

ASP.NET

validation

Validation Errors in Validation Summary only

30 Jul 2015 by Amrik Singh

Display="None" is the trick.

ASP.NET

validation

How Do I Make Input Mandatory And Start With A 99 Or 98

15 Sep 2015 by Andy Lanng

HTML 5 supports pattern and number type:Note: The pattern attribute of the input tag is not supported in Internet Explorer 9 and earlier versions, or in Safari.

jQuery

forms

validation

How to use angularjs in ASP.NET textbox with having runat server

5 Feb 2019 by Anilananda

Hy guys can anyone tell how to do form validation with angularjs in asp.net (.aspx page Not MVC) i want to use runat="server" and angularjs bouth from form validation , can any one tell is it possible or not. if possible how to do this? What I have tried: Here is my code

RequireFieldValidator nor working in Client-Side in my project

29 Jul 2015 by Animesh Datta

Hello ,You have to add ValidationGroup="A" in TextBox also .thanks

client-side

validation

date of birth regular expression validation for dd/mm/yyyy format issue

6 Mar 2015 by AnoopkumarS

objLoanApp.birthdate = DateTime.ParseExact(txtbirthdate.Text,"dd/MM/yyyy",null)

Allow (+) sign in email validation

3 Nov 2014 by Anubhav Goel

I am using the regular expression to validate emails./^([\w-]+(?:.[\w-]+))@((?:[\w-]+.)\w[\w-]{0,66}).([a-z]{2,6}(?:.[a-z]{2})(\".+\")?)$/iSo i want to allow the + sign only other special characters are not allowed.What change I need to make in this pattern?Thanks Anubhav

jQuery

ASP.NET

validation

Need help .... Unable to Apply ClientSide validation using Fluent Validation...

4 Jun 2013 by Anubhava Dimri

Hi Everybody,I have a class Customermodel in which have birthday,birthmonth,birthyear properties.So i am trying to create a valid date Rules for client side that but i am not able to create it.I am facing issues at the time of birthday. because it is depend on birthmonth and...

Confirm Date must be greater than Join Date using customeValidator

20 Aug 2012 by Anuja Pawar Indore

Try thisvar dt = new Date(joinDate); var dt2 = new Date(confDate); var myDate = dt.getDate() var myDate2 = dt2.getDate(); if (myDate

Javascript

ASP.NET

validation

requiredfieldvalidator to html control without runat="server"

27 May 2014 by April Fans

Hi, you can validate your html text box with javascript:*Requiredfunction...

Validate pan card in vb6

31 May 2022 by Aravindba

Hi, First spilt pan numbers and pass the spilt values for each functions for verify it, Here all function must return false, otherwise PAN number is incorrect. In fourth position i pass characters to check as "ABCFGHLJPT", bcz u mention 4...

VB6

validation

Want validation expression for Email in all condition asp.net

1 Jul 2013 by aravindnass

heyy.. I am using a regular expression validation for Email Address... There is two type of Email like 1. xxx@xxx.com2. xxx@xx.co.inCurrently My validation expression is :-ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"But in this condition it...

ASP.NET

validation

regular-expression

want regular expression for allow alphanumeric,space and hypen

8 Jul 2013 by aravindnass

heyy.. I want a regular expression for allow only alphanumeric,space and hypen in a textbox Any regular expressions??

ASP.NET

validation

regular-expression

html 5 required validation not working in button tag ( in IE 10)

28 Nov 2013 by aravindnass

heyy.. I am using a textbox and a button tag ...when I use html 5 validation (required) ..it is not working ...in IE ..here is my code :- ...

HTML5

validation

buttons

required field validation and button click

15 Oct 2012 by arshad alam

Code for designer page :

ASP.NET

validation

How do I put an input validation

22 Jan 2017 by Arun Maiya

change the code fromif (needInput = false)toif (needInput == false)that should work!

C++

validation

want regular expression for allow alphanumeric,space and hypen

8 Jul 2013 by ArunRajendra

You should be able to find it in this site. http://regexlib.com/[^]

ASP.NET

validation

regular-expression

How can I count the number of commas "," in a TextBox.text ?

6 Dec 2009 by Ashish Sheth

No need to count the commas.Use Textbox1.Text.Split(',').Length. It gives you the count of the numbers added in the textbox separated by comma.

How to give Validation to enter only numbers in Textbox.... not alphabets

25 Jun 2012 by AshishChaudha

For this you can also use FilterTextboxExtender of Ajax. You can also set only for alphabets or both.

SQL-Server

ASP.NET

validation

How to validate for Text box in Javascript

26 Jul 2012 by AshishChaudha

Try this function CalculateGPer() { var Form = document.frmReg; var txt1= Form.txtBox1.value; var txt2= Form.txtBox2.value; var addition1= (Number(txt1)+Number(txt2)); if(!isNaN(Per) &&...

Javascript

validation

Custom validation msg for datatype int

21 May 2015 by AshishSarang

portion of my code is as below @for (int i = 0; i @Html.DisplayFor(x => x.UtilityLineItems[i].Line_Item_Name) @Html.TextBoxFor(x => x.UtilityLineItems[i].Value_1) }Value_1 is having...

MVC

validation

Client Side Validation

5 Nov 2012 by Ashok26

Hi,I have few panels on page.In one of the panels, there is a button with few editable controls.User can edit these controls' values and use the button to see derived values.However, we have a requirement to prompt user if the user moves out of the panel and goes to another panel...

ASP.NET

validation

Restrict user to fix the client validation error

5 Nov 2012 by Ashok26

We are using validation controls and callout extender to show validation messages.Can we restrict user to fix the error before moving to next field?

ASP.NET

validation

Input Field Validation If Adjoining Checkbox Is Checked

25 Jun 2014 by Ashok8033

Javascript

CheckBoxList

validation

I want to validate empty textbox, it works but it gives error when at Convert.ToInt32(student.Text) as Input String is not in correct format. Please help me how to validate.

9 Jan 2016 by Ashutosh Dutondkar

Public Sub CheckEmptyTextbox(ByVal groupbox As GroupBox) Dim txt As Control For Each txt In groupbox.Controls If TypeOf txt Is TextBox Then If txt.Text = "" Then MsgBox("Fill Details To Proceed",MsgBoxStyle.Exclamation) Exit...

validation

OnServerValidate function is not being called in custom validator.

11 Jan 2016 by Ashutosh shukla207

hello friends ... i have to use custom validation in my asp form . but OnServerValidate function is not being called. my code is below :-source code :

ASP.NET

validation

validate input fields with finest technique using jquery

26 Jun 2013 by askquez

i have html form which include Five input text fields and one drop-down (select) field.These text fields are showing in form with respect to drop-down options mean if i selected option 1 then three text fields will be showing and for option 2 ( 4 text fields ).I am using jquery for hide...

Input and Data Validation

11 Oct 2013 by ASP.NET Community

Garbage in, garbage out. You can avoid data cleanup tasks on the backend by avoiding bad data coming in. ASP.NET validation controls and third party

Validation Controls

11 Oct 2013 by ASP.NET Community

ASP.NET Validation Controls are powerful server controls that are used for validating user input. These controls provides both server side and

server

controls

validation

requiredfieldvalidator

11 Oct 2013 by ASP.NET Community

The RequiredFieldValidator control is used to ensures that a input field is not skiped inthe entry. The control fails validation if the value it

MSDN

validation

customvalidator

11 Oct 2013 by ASP.NET Community

The CompareValidator control compares the value of one control to another, or to an explicit value in the control's ValueToCompare property.

validator

properties

validation

RegularExpressionValidator

11 Oct 2013 by ASP.NET Community

The RegularExpressionValidator control confirms that the entry matches a pattern defined by a regular expression. This type of validation allows you

CompareValidator

11 Oct 2013 by ASP.NET Community

The CompareValidator control compares the value of one control to another, or to an explicit value in the control's ValueToCompare property.

LESS

properties

validation

ValidationSummary

11 Oct 2013 by ASP.NET Community

A ValidationSummary control is displayed when the IsValid property of the page is false. It "polls" each of the validation controls on the page and

customvalidator

11 Oct 2013 by ASP.NET Community

The customvalidator control allows writing custom validation for a control. So, if the others validators: RangeValidator, RequiredFieldValidator,

server

validation

Customized Message Bar

11 Oct 2013 by ASP.NET Community

Today I will show you the message bar which I normally used to display the standard place to display the messages like confirmation, errors,

bar

message

validation

Validation & remeber values of selected checkboxes in grid controls using javascript

11 Oct 2013 by ASP.NET Community

This article explains how to make validation on checkboxes and remember the selected checkboxes' values in DataGrid/GridView etc, together. This will

validation

grid

Validation of Numeric Values On keyPress Event USing Javascript

11 Oct 2013 by ASP.NET Community

It is better to use javascript functions for validating numeric values rather than Validation Controls.We can restrict a textbox to allow only

Javascript

validation

How to Disable spacebar in TextBox1.Text?

7 Dec 2009 by AspDotNetDev

VB does not use a double equal sign to test for equality. It only uses a single equal sign. Try:e.Handled = (e.KeyChar = " ")Also, it doesn't use semicolons to end lines.

buttons

validation

sorting

3 Sorting Algorithms using the same Textbox ???

7 Dec 2009 by AspDotNetDev

This seems like a homework question...What do you need help with specifically? Sorting algorithms are well documented online. Have you searched online yet? Wikipedia has some good information. Once you've done that, then come here with specific questions and we'll be happy to assist (so long...

validation

sorting

How to Regular Express real numbers with commas?

9 Dec 2009 by AspDotNetDev

Sounds like you want us to make your regular expression for you. What particular trouble are you having creating your regular expression?

How not to save details in text file if validation fails using VB?

16 Mar 2018 by ATeDe

Hi j snooze I think, this is what you might looking for? I'm not very familiar with Forms and all that jazz in VB.NET, also tomorrow we have St Patrick celebration here in Ireland, so I wrote quickly this piece of code. txtBoxes array of string simulates content of your real TextBoxes. This...

VB11

VB14

validation

How not to save details in text file if validation fails using VB?

17 Mar 2018 by ATeDe

Public Class Form1 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click ' Button to validate Phone numbers typed into TextBoxes Dim emptyTextBoxes = From txt In Me.Controls.OfType(Of TextBox)() ...

VB11

VB14

validation

Please explaion how the tryparse is used for validation

30 Jul 2012 by atjoshi

private void button1_Click(object sender, EventArgs e){ int number2; if (int.TryParse(textBox1.Text, out number2)) { textBox2.Text = ("tryparse method succeed"); } else { textBox2.Text=("value entered is not numeric"); }}

validation

How to show error message if user misspelled gmail.com(like gaiml.com)

1 Jul 2014 by Ayush1857

How to show error message if user misspelled gmail.com(like gaiml.com),yahoo.com in email id of registration form then show error message in asp.netthanks in advance

ASP.NET

validation

How to create email address checker to check only valid email registered with valid domain like gmail,yahoo.

1 Jul 2014 by Ayush1857

How to create email address checker to check only valid email registered with valid domain like gmail,yahoo.

ASP.NET

validation

How do I validate a hiddenfor field in ASP.NET MVC razor view?

16 Nov 2020 by Barcelonista Naser

I have a jQuery selectable widget in my razor view which displayed as an and updated from a comma separated string in SQL Server table just like below:@{ var color = Model.AvailableColors.Split(','); foreach (var clr...

MVC5

ASP.NET

validation

How can i validate Dataset ? How can i display if it returns no record?

22 May 2013 by Basmeh Awad

If ds.Tables(0).Rows.Count > 0 Then'Do what you want to doelseMessagebox.Show("No Records Found")End If