Google is a marvellous tool. But only if you actually bother to use it...Google[^]Top hit: How to Restrict user to enter only alphabates in TextBox by javascript in asp.net[^]In future, please try to do at least basic research yourself, and not waste your time or ours.

Javascript

ASP.NET

validation

ASP.NET GridView Client Side Validation

30 Jul 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

We will explore the technique in jQuery to validate the ASP.NET GridView.

Preventing XSS Attacks in ASP.NET MVC using ValidateInput and AllowHTML

28 May 2015 by Shivprasad koirala

In this blog we will try to understand how we can prevent and fine tune XSS(Cross Site Security) security attacks in ASP.NET MVC.

StringBox Control with Keystroke Validation

22 Jul 2020 by siliconvideo

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

Testing e.FormattedValue.ToString Against IsDBNull or IsNothing

5 Feb 2011 by fjdiewornncalwe

Try using the String.IsNullOrEmpty method. MSDN Documentation.It is likely that your FormattedValue equals string.Empty. An empty string is still a value so IsNothing won't work and IsDBNull won't work because the string value won't equal System.DBNull.Value.

validation

Textbox validation for year 2013

15 Jul 2012 by Mohamed Mitwalli

Hi , Did you noticed that you post the same Question www.codeproject.com/Answers/422080/how-to-validate-textbox-with-previous-year[^]Go and Check there it's already AnswerBest RegardsM.Mitwalli

ASP.NET

validation

Restricting the values inside textbox to only numbers but that text box is within grid view

29 Jan 2013 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Please follow the solution in How to validate textbox inside gridview to accept numeric values only[^].HTML:JAVASCRIPT://Restrict the user to key-in chrectors and other special...

validation

Gridview

Use Ajax Validation in Knockout

3 Jul 2014 by DiponRoy

How to use Ajax validation in Knockout

Allow (+) sign in email validation

3 Nov 2014 by Sergey Alexandrovich Kryukov

I don't know what do you want to achieve and why, but '+' is a part of Regular Expression syntax, so the only possible problem I can see is knowing that you can escape any character, in this case, '\+'. I did not see this combination of two characters in your Regex sample, that makes me think...

jQuery

ASP.NET

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 Wendelius

As far as I can see you check if the text boxes are empty but you don't exit from the calling method if validation fails.In other words the validation should be something likePublic Function CheckEmptyTextbox(ByVal groupbox As GroupBox) As Boolean Dim txt As Control For...

validation

Web Page Form Validations with Angular

3 Jan 2023 by Han Bo Sun

Several ways of form field validation using Angular framework

C# --fluentvalidation | system.invalidcastexception

15 Jul 2020 by ||Memo||

Guys i found the solution. public class ValidatorTool { public static void FluentValidate(IValidator validator, object entity) { var context = new ValidationContext(entity); var result...

Fluent

validation

How to Disable spacebar in TextBox1.Text?

7 Dec 2009 by Pete O'Hanlon

I would look at using the KeyPress event on the textbox and set e.Handled=true if the key was a spacebar (e is the KeyPressEventArgs for the event handler). Your code might look something like this:private void TextBox1_KeyPress(object sender, KeyPressEventArgs e){ e.Handled = e.KeyChar ==...

buttons

validation

sorting

How to Disable spacebar in TextBox1.Text?

7 Dec 2009 by jasonpang2011

To add onto the answer above, the KeyPress event handler won't work unless you set KeyPreview to true. The KeyPreview property is on the Windows Form (click your form, look to the property box to the right, find KeyPreview, and set it to True). Or you can manually add the following to the...

buttons

validation

sorting

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

How do I get cell value after change in CellValidating Event within DataGridView

5 Feb 2011 by OriginalGriff

Use the DataGridViewCellValidatingEventArgs.FormattedValue property[^]

DataGridView

validation

Basic Data Validation Using Data Annotations: ASP.NET MVC 3

22 Feb 2011 by imsauravroy

A basic introduction on how to use data annotations for validating MVC models, which solves basic validation issues

ASPX Custom Validator to Prohibit Certain Selections From A DropDownList

7 Jul 2011 by Sergey Alexandrovich Kryukov

First of all, even if you implement such behavior, it cannot be called "validator". A "validator" is something which validates data after it is entered, but you want to filter out the input (selection) itself.I fear to say such behavior is too far from expected UI behavior and would be very...

ASP.NET

drop-down

validation

Validation Errors in Validation Summary only

9 May 2012 by member60

Simple ! Set Display="None" in the Validator tag as: Name :

ASP.NET

validation

YaldaValidation For FileUpload Control

11 Jun 2012 by taha bahraminezhad Jooneghani

A custom validation control for FileUpload controls that validate like required validator, and have two more methods for extensions and file size!

Need validations for 2 logins in one asp.net webpage

10 Sep 2012 by sanwar_mal_jat

Hi dude use ValidationGroup property as like in aspx page TxtStudentName -> ValidationGroup ="stu"TxtStuPassword -> ValidationGroup ="stu"BtnStudentSubmit -> ValidationGroup ="stu"TxtTeacherName-> ValidationGroup ="teac"TxtTeachPassword-> ValidationGroup...

ASP.NET

validation

How to Get the return value from form submit using javascript

3 Apr 2013 by Prasad Khandekar

Hello,Rather than attaching the validation engine to a form you can use .validate method in your own submit handler. That way you can chose to take an appropriate action based on the return value. See doc here[^]Regards,

Validation check is only checking the first if statement and ignoring the second

3 Jul 2013 by santosh_131

If the cell has to be checked for both the conditions try the following code:If (e.ColumnIndex = 0) Then 'checking value for column 1 only Dim cellData As Integer IF Not DataGridView1.Rows(e.RowIndex).Cells(e.ColumnIndex).Value is DBNull.Value Then If...

DataGridView

validation

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

4 Oct 2013 by Ranesh M Raj

validate.js[^][Edit member="Tadit"]Link text added to reflect the Article/QA title.[/Edit]

Javascript

validation

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

20 Feb 2014 by Sergey Alexandrovich Kryukov

Please see my comment to the question.You just need to learn System.DateTime and methods of parsing of string into date data. Please see all the methods named Parse, ParseExact, TryParse and TryParseExact (and avoid using Convert, in most cases; after all, this is parsing, not...

Regex for alphanumeric

6 May 2014 by CHill60

Try this ^(?=.*[a-zA-Z]+.*)[0-9a-zA-Z]{6,15}$Which I adapted after typing "Password" into the search engine at Regxlib.com[^]

Regex for Multiple Check Box

7 May 2014 by Peter Leow

It has got nothing to do with regex, just use javascript to validate before submissioncheck-box-validation-for-atleast-one-check-box-should-cheked-in-asp-net[^]

Gmail-style Emails Input Control using WPF C#, with Validation

26 May 2014 by Tkach Aleksey

WPF Gmail-style emails input control using C#, with email validation

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

1 Jul 2014 by Nguyen.H.H.Dang

Try this :Email Address Validation Using Regular Expression[^]That link show you how to check if input is an valid Email Address, but if you just wanna use Gmail or Yahoo, try this :"\w+([-+.]\w+)*@(yahoo|gmail)\.com)"

ASP.NET

validation

Validating Textboxes and skipping Validations on form close

22 Oct 2014 by CHill60

Let's deal with TxtEmail_Validating first...All those checks that could finally lead to the message "Email cannot be left blank" are a waste of time - if you choose an appropriate regex to test against.But if you were going to leave them in, you need to exit appropriately once you have...

WinForms

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 validate parentheses position in C#?

20 May 2016 by George Jonsson

Regular expressions are not the best tool for this, because you will have nested parts of your input text.In this case it with be more robust to use a parser, but that has a bit of a learning threshold. ANTLR4 is a free parser originally for Java, but it has a version for C# as well. See...

I want to check textbox validation

30 Nov 2016 by Karthik_Mahalingam

try like thisint value1 ,value2; bool isValid1 = int.TryParse(textbox1.Text, out value1); bool isValid2 = int.TryParse(textbox2.Text, out value2); if (isValid1 && isValid2) { if (value1 > value2) { // your...

TextBoxBase

validation

How to validate postcode ( british) ?

23 Dec 2017 by OriginalGriff

If in doubt, google: validate postcode ( british) - Google Search[^] This links to Wikipedia: Postcodes in the United Kingdom - Wikipedia[^] which includes the UK Government validation Regex ... In future, please try to do at least basic research yourself, and not waste your time or ours -...

Visual-Studio

validation

Validate excel worksheets

7 Mar 2019 by Gerry Schmitz

Considering that a work book can contain practically anything, I don't see how anyone can come up with a "generic" solution to satisfy your curiosity as to the "validity" of its content. Better you come up with a "standard" workbook that you insist the client uses. If that's not possible, then...

MS-Excel

validation

How to get Windows version on combo SeletIndexChanged?

10 Dec 2009 by nGrafix

Hi guys,I finished my project in VB.NET (VS.NET 2008). This project supports three languages; English (UK), Kazakh (Kazakstan) and Hausa (Nigeria). The program allows the user to swtich between the languages at runtime via ComboBox's SelectedIndexChanged event.The problem is Hausa (a...

How to get Windows version on combo SeletIndexChanged?

10 Dec 2009 by MaasOne

Check the Windows version from System.Environment-class. Vista has version 6 and Win 7 has (what a surprise :)) version 7. Private Function IsVistaOrHigher() As Boolean Return Environment.OSVersion.Version.Major >= 6 End FunctionMaas

Describe different kinds of application validation and where they should occur?

8 Feb 2010 by William Winner

Or maybe this was asked on an application? Or maybe this is homework for a class?If you posted your response, it might get more replies.

validation

application

ASP.NET: Custom Validator not working!

15 Mar 2010 by goldeneyeonline

Hi nishantsagar83!Thank you very much for your answer!Since I usually only use the sourcecode tab, i was really hoping this would do it... but it didn't:(I mean, even when i click on the error text in design view, then my cursor jumps to the function for the Custom Validator, but it still...

ASP.NET

validation

Business layer Validation design pattern

28 Nov 2010 by thedude9

Thanks Uwe, yes that is a great book. But it doesn't have anything about validation.

Design

validation

How do you localize validation messages?

12 Dec 2010 by thedude9

How do you localize validation messages?Assume business layer validation.I am thinking of "error codes + target name", that could be translated to some localized message in the presentation layer. A good idea?Can someone please share good practices?

validation

locale

"e.cancel" gives Build Error in DataGridView CellValidating Event

5 Feb 2011 by Estys

You handle the wrong event.It must be :private void dgvPhysCME_CellValidating(object sender, DataGridViewCellValidatingEventArgs e) Handles dgvPhysCME.CellValidatingThe DataGridViewCellValidatingEventArgs has a Cancel property.Cheers

DataGridView

validation

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

8 Feb 2011 by thomas struss

Hey guys, I'm really new to C++ and I'm trying to figure out how to validate a char var--to see if it's an int between 1 and 6, basically. The program I have so far catches all the exceptions I want it to except for numbers over 9 and negative numbers.When the number entered is 9 or higher it...

C++

validation

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

8 Feb 2011 by Yusuf

The easiest way is to change your input to int. After that life will be a whole lot easier int myInt; myInt = atoi (choice);SEE Cplusplus[^] and MSDN[^] for details

C++

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

validation for aspx page

10 May 2011 by Om Prakash Pant

One option is to store the existing data in javascript variables and when form is submitted, compare the data. If the data is same then show alert box to user.Another option is to use hidden fieldand comparing the data.you can also submit the form and do the comparision and show the...

ASP.NET

validation

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[^].

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...

JavaScript - Validation Function

1 Feb 2012 by Sanjay K. Gupta

1. for code var result1 = args.Value (intelisense not supported)2. use var rsult2 = document.getElementById('').value; instead ofvar rsult2 = document.getElementById("ddl1").value;

Javascript

ASP.NET

validation

JavaScript - Validation Function

1 Feb 2012 by Sarvesh Kumar Gupta

Hi,ddl does not works like this.use below code for access ddl in JS.ddlObj = document.getElementById('');ddlVal = ddlObj.options[ddlObj.selectedIndex].value;

Javascript

ASP.NET

validation

Inside GridView required Field validation is not working

15 Feb 2012 by Jeevitha royapathi

HI,Add different validation group for two requiredfieldvalidtor and to respective linkbuttons..like

ASP.NET

validation

Gridview

Validation fired but Red Border does not appear with User Control in Silverlight 4

1 Mar 2012 by Sunasara Imdadhusen

Hi All,Now i resolved issue using following code. I have replaced following linetxtTextBox.SetBinding(TextBox.VisibilityProperty, new Binding("Redactable") { Source = this, Converter = new BoolToVisibilityConverterReverse() });with this.MapBinding(RestrictedControl.ValueProperty,...

ValidationRequest Problem . how to handle?

7 Mar 2012 by Saeid.Babaei86

i have a problem . if i want to save html tags icluded text such as i get below problem :" A potentially dangerous Request.Form value was detected from the client... "i dont want to disable page ValidationRequest . what i do ?

ASP.NET

validation

ValidationRequest Problem . how to handle?

7 Mar 2012 by walterhevedeich

See here:ASP.NET 4.0 potentially dangerous Request.Form value was detected[^]

ASP.NET

validation

ValidationRequest Problem . how to handle?

7 Mar 2012 by Ganesan Senthilvel

You should use JavaScript (or a server-side script) to properly escape any user input. Here's another JavaScript function you could tryString.prototype.escapeHTML = function () { return( this.replace(/>/g,'>'). replace(/

ASP.NET

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

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

25 Jun 2012 by Sanjay Kunjam

Try this..Text box to accept only number[^]

SQL-Server

ASP.NET

validation

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

25 Jun 2012 by Prasad_Kulkarni

Try this:void NumberValidation(object sender, KeyPressEventArgs e) { if ((e.KeyChar >= 48 && e.KeyChar

SQL-Server

ASP.NET

validation

Validation control for entering numbers

7 Jul 2012 by Mohd Imran Saifi

You Can use it by two ways:-1. Javascriptjust add this script on page's HTML sidefunction checking(){ var check1 = document.getElementById("").length; if(var4) { alert('Please Enter Only 4 digit no.'); ...

ASP.NET

validation

How to validate enabled empty textboxes disregarding the disabled textboxes

7 Jul 2012 by OriginalGriff

Add a check for the Enabled property:if ((myControl.GetType() == typeof(TextBox)) || (myControl.GetType() == typeof(ComboBox))) { //myControl.Text = myControl.Text.Trim(); if (myControl.Enabled && string.IsNullOrWhiteSpace(myControl.Text)) { ...

Windows

form

validation

how do I set a value to controls?

9 Jul 2012 by Destiny777

There are many solutions to this problem.You want to keep it simple and easy to understand!Try writing the pseudo code first then walk through it on paper before you code it to see if you really understand how it works. If your pseudo code does not work, then clean it up until it does...

textbox to enter only alphabets.

15 Jul 2012 by Sandeep Mewara

There are ways to make this happen, using regular expression, JavaScript validation, etc. I would prefer Masked Textbox for it, something like: Enhanced Textbox Control[^]

Javascript

ASP.NET

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

textbox to enter only alphabets.

15 Jul 2012 by S.Dwaik

you must add from Toolbox in Validation and select RequiredExpressionValidator;and in properties "ControlToValidat" select filed name ex: Textbox1and select Expression mask from ValidationExpression for alphabets "\w+"S.Dwaik

Javascript

ASP.NET

validation

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

how to validate textbox with previous year

16 Jul 2012 by Mohamed Mitwalli

Hi , Check this solution , Just use CompareValidator ValueToCompare="2012" Operator="GreaterThan" only this proprieties you have to care about to cause the validation and ErrorMessage to Give the Error message you want . ...

SQL-Server

ASP.NET

validation

Textbox validation for year 2013

15 Jul 2012 by Pankaj Nikam

You can use CompareValidator for that. Follow the steps:1. Drag and drop a CompareValidator from the toolbox to a suitable place you like.2. Set the Operator to GreaterThan3. Set the ControlToValidate property to the TextBox (which has the year)4. Set the ValueToCompare on the Page...

ASP.NET

validation

How to validate textbox inside gridview to enter date correctly

20 Jul 2012 by Christian Graus

The most obvious way to do this, is to have a javascript method that is called in the onblur, because that is easy to write and to put in to the template for your gridview, so it's called for each textbox. Using a decent date control makes more sense, but if you're stuck with a textbox, that's...

ASP.NET

validation

regular expression not working correct

26 Jul 2012 by Raghunatha_Reddy_S

Try this function validate(){var n=document.getElementById("name").value;var q=document.getElementById("quantity").value;var p=document.getElementById("price").value;var na=/^[a-z ]*$/;var no=/^[0-9 ]*$/; if (!na.test(n)) { alert("Please enter valid name."); ...

Javascript

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

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

Need validations for 2 logins in one asp.net webpage

10 Sep 2012 by Mohamed Mitwalli

Hi ,Check this Article http://www.codedigest.com/Articles/ASPNET/26_Validation_group_in_ASPNet_20.aspx[^]Best RegardsM.Mitwalli

ASP.NET

validation

Server side validation function from Business Logic Layer

11 Sep 2012 by Predator008

Hi Dear developers, I am having 2 textboxes which I want to check for string lenght (more than 2 characters) and for requirement. the problem is that I can't put this server-side validation in code behind of my page, instead I should call a function I should create in BLL file in my project. I...

ASP.NET

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

Office.Interop Excel Care about Validation of Cells

1 Nov 2012 by Maciej Los

First of all, read these articles:http://msdn.microsoft.com/en-us/library/microsoft.office.interop.excel.range.validation%28v=office.11%29.aspx[^]http://msdn.microsoft.com/en-us/library/microsoft.office.interop.excel.validation_properties%28v=office.11%29.aspx[^]If you would like to use...

Validations in asp.net for two logins in same page in ASP.NET

24 Nov 2012 by Mohd Imran Saifi

You have to specify validation group for each Section. Try this.; Untitled Page ...

SQL-Server

ASP.NET

validation

how to identify the changing of value in a particular text field after clicking submit button

17 Jan 2013 by rakesh1503

hi,what i can suggest you to go by is the code like below:suppose,we have this sort of design ...

TextBoxBase

validation

Password Must contain 1 numeric and 5 alphabets

21 Apr 2013 by Thanks7872

Go through these links.Password conditionsRegular Expressions reference

ASP.NET

validation

Password Must contain 1 numeric and 5 alphabets

21 Apr 2013 by Karthik Harve

Hi,you can make use of regular expressionsrefer7 Regular Expressions a C# Developer Must Know[^]Using Regular Expressions in C# .NET[^]try with below expression.^.*(?=.{6,})(?=.\d)(?=.{5,}[a-z,A-Z]).*$ above expression validate for, 1 numeric, 5 alphabets and maximum 6...

ASP.NET

validation

Password Must contain 1 numeric and 5 alphabets

21 Apr 2013 by CPallini

As an alternative to regulare expressions. A simple approach would be:validate length: if password is too short or too long, reject itvalidate charactersFurther details for point 2: set num_count = 0, alpha_count = 0, then, for each character of the password, ifit is a numeric...

ASP.NET

validation

Is there a simple way to allow only whole numbers in datagridview

25 Jun 2013 by Ron Beyer

If CType(cellData, int) cellData ThenAssuming cellData is a numeric value, that should work.

DataGridView

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

want regular expression for allow alphanumeric,space and hypen

8 Jul 2013 by Thanks7872

Try this ^[A-Za-z0-9- ]+$Regards.. :laugh:

ASP.NET

validation

regular-expression

How to make default value of datagridviewcell blank

21 Jul 2013 by Maciej Los

If your DGV is bind with MS Excel Sheet data (using OLEDB), then probably, default value of cell should be DBNull.Value.

DataGridView

validation

How to change the BackColor of a DataGridView Cell if it contains invalid data

24 Jul 2013 by Winston Madiano

You can use DatagridviewCellFormating Event if you want to change the back color of you datagridview row based on cell value.Ex:On your DataGridView1_CellFormatting EventDim row As DataGridViewRow = DataGridView1.Rows(e.RowIndex)Dim obj As Object = row.Cells("ColumnName").Value...

validation

DataGridView

color

How do I pass ValidationRules an Interface List to validate against?

2 Aug 2013 by Clifford Nelson

Not sure this will help you, but here is a CodeProject article: Validation in Windows Presentation Foundation[^]

WPF

XAML

validation

How to make javascript popup window in center of screen for validations.

4 Sep 2013 by Menon Santosh

check this articlehttp://stackoverflow.com/questions/4068373/center-a-popup-window-on-screen[^]

ASP.NET

validation

Asp.net Error about Validation of Viewstate MAC failed

14 Sep 2013 by Rohit kumar6210

Any one Please help me to solve the following error ? Please tell me why the following error occurs ????Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation...

ASP.NET

ViewState

validation

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

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

Custom Validation and Compare validation in asp.net

21 Oct 2013 by bjdestiny

For Range Validator refer ASP.NET RangeValidator Control[^] and follow this code

ASP.NET

ASP

validation

WPF TextBox Validation C#

23 Oct 2013 by Member 10321925

I have 3 TextBoxes (Id,Name and Salary)Id and salary should be integers and Name is only charecters.I need validations for my TextBox as i enter wrong charecters or integers it should show error and also can i do it this in only xaml without codebehind ? I'm new to Wpf and validation please help...

WPF

data-binding

validation