Validation Articles

Regular Expression (Regex) to accept only Alphanumeric (Alphabets and Numbers) in C# and VB.Net

GST (Goods and Services Tax) Number validation in C# and VB.Net

Aadhaar Number validation using Regular Expressions in C# and VB.Net

Validate File in INPUT Type File (FileUpload) using JavaScript in HTML

Validate File in INPUT Type File (FileUpload) using jQuery in HTML

Filtering Files based on Extensions in ASP.Net FileUpload Control

Numeric validation using RegularExpression Validator in C# and VB.Net

Email Address validation using RegularExpressionValidator in C# and VB.Net

Using Validation in Windows Forms in C# and VB.Net

Implement File Size Restriction Validation using JavaScript

Check (Validate) File (Image) Size before upload using JavaScript and jQuery

Validate (check) File Size before upload using jQuery Uploadify Plugin in ASP.Net

Implement File Size Restriction Validation using HTML5

Make TextBox required in Windows Forms in C# and VB.Net

Validate TextBox in Windows Application using C# and VB.Net

Validate At-least one TextBox from Multiple TextBoxes using JavaScript

ASP.Net MVC: Validate At-least one TextBox from Multiple TextBoxes using jQuery

Validate ASP.Net CheckBoxList control (at least one checked) using JavaScript

At-least one TextBox required validation in ASP.Net Core Razor Pages

ASP.Net Core: Validate At-least one TextBox from Multiple TextBoxes

Validation Articles

Regular Expression (Regex) to accept only Alphanumeric (Alphabets and Numbers) in C# and VB.Net

GST (Goods and Services Tax) Number validation in C# and VB.Net

Aadhaar Number validation using Regular Expressions in C# and VB.Net

Validate File in INPUT Type File (FileUpload) using JavaScript in HTML

Validate File in INPUT Type File (FileUpload) using jQuery in HTML

Filtering Files based on Extensions in ASP.Net FileUpload Control

Numeric validation using RegularExpression Validator in C# and VB.Net

Email Address validation using RegularExpressionValidator in C# and VB.Net

Using Validation in Windows Forms in C# and VB.Net

Implement File Size Restriction Validation using JavaScript

Check (Validate) File (Image) Size before upload using JavaScript and jQuery

Validate (check) File Size before upload using jQuery Uploadify Plugin in ASP.Net

Implement File Size Restriction Validation using HTML5

Make TextBox required in Windows Forms in C# and VB.Net

Validate TextBox in Windows Application using C# and VB.Net

Validate At-least one TextBox from Multiple TextBoxes using JavaScript

ASP.Net MVC: Validate At-least one TextBox from Multiple TextBoxes using jQuery

Validate ASP.Net CheckBoxList control (at least one checked) using JavaScript

At-least one TextBox required validation in ASP.Net Core Razor Pages

ASP.Net Core: Validate At-least one TextBox from Multiple TextBoxes