Attribute Usage Required Specifies that a property value is required. StringLength Specifies the minimum and maximum length of characters that are allowed in a string type property. Range Specifies...

Take four text boxes and display their ad in 5th text box

Create a clear button as well

Calculate values as per the attached file formula

Use any 4 attributes in any program as per the attached file

Attribute Usage Required Specifies that a property value is required. StringLength Specifies the minimum and maximum length of characters that are allowed in a string type property. Range Specifies the numeric range constraints for the value of a property. RegularExpression Specifies that a property value must match the specified regular expression. CreditCard Specifies that a property value is a credit card number. CustomValidation Specifies a custom validation method that is used to validate a property. EmailAddress Validates an email address. FileExtension Validates file name extensions. MaxLength Specifies the maximum length of array or string data allowed in a property. MinLength Specifies the minimum length of array or string data allowed in a property. Phone Specifies that a property value is a well-formed phone number.