Change border and background color of asp.net controls on validation failure using javascript and CSS

Introduction :  In this article I am going to explain how to highlight i.e. change border and background color of asp.net controls on vali...

Highlight asp.net textbox,dropdownlist controls on validation failure error using JavaScript

Introduction : In this article i am going to share the trick to highlight asp.net controls like textbox and dropdownlist by changing the bo...

How to use CustomValidator validation control with example in asp.net

Introduction : While creating user input form e.g. registration where user inputs the details like Name, email address, password and confir...

How to use RangeValidator validation control with example in asp.net

Introduction : While creating user input form e.g. registration where user inputs the details like Name, email address,Age,Date of Birth, p...

How to use RegularExpressionValidator validation control with example in asp.net

Introduction : While creating user input form e.g. registration form where user enters the details like Name, email address, password and c...

How to use CompareValidator validation control with example in asp.net

Introduction : While creating user input form e.g. registration where user inputs the details like Name, email address, password and confir...

How to use RequiredFieldValidator validation control with example in asp.net

Introduction : While creating user input form e.g. registration form  or contact us form etc where user enters the details, we have to impl...

How to validate CheckBoxList using JavaScript in Asp.net(C#, VB)

Introduction : In previous articles I explained How to Fill CheckBoxList from Sql Server table in asp.net(C#,VB)   and Fill CheckBoxList b...

How to show Validation guidelines in web forms using JavaScript in Asp.net ?

Introduction :  In previous articles i explained how to show  Message box in asp.net website using JavaScript and  Highlight gridview row ...

What is Page.IsValid and Page.Validate in Asp.net ?

Introduction :  In previous articles i explained the Difference between Delete and Truncate in sql server and Difference between Response....

Validate and upload image files in asp.net

Introduction :  In previous articles i explained How to resize image in Asp.net and How to create thumbnail, small and large version of th...

JavaScript validation in asp.net website

Introduction :  In previous articles i explained the Example to implement Jquery form validations in asp.net and Message box in asp.net we...

How to check and validate file extension before uploading a file through FileUpload control in asp.net | Use of RegularExpressionValidator control to validate file extension before uploading file through FileUpload control in asp.net

Introduction: In previous articles i explained Drag & drop to upload multiple files using AjaxFileUpload like Facebook in asp.net and...

Validate file extension while uploading image or file through File Upload control using JavaScript in asp.net | Use of CustomValidator control to validate file extension before uploading image or file through FileUpload control in asp.net

Introduction :   In previous articles i explained How to Drag & drop to upload multiple files using AjaxFileUpload like Facebook  and  ...