Regular expression for validating date in asp net

Below is my code: This works, but the caveat is that this allows dates that may be out of range of SQL dates less than 1753 or you may have a date range (no future date entries).

This does work, but Chris Van Opstal's may be needed for SQL date edits.

: Jan|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec))))(?

It accepts either '-', '/', or nothing as separators between year, month, and day, no matter the order.

Here Mudassar Ahmed Khan has explained how to validate Check Boxes inside Grid View and perform at least one checked validation using Java Script in ASP. Validation of Check Boxes inside Grid View is performed using ASP.

Net Custom Validator with a client side Java Script validation function.

This is the simplest way to validate a dd/MM/yyyy date format string.

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Net Check Box List control using Custom Validator and perform at least one Check Box Checked Validation in it. Net Custom Validator will make us eof Java Script function to validate the Check Box List control. j Query Validation Engine plugin is used to perform validation of ASP. Validations such at least one (minimum one) checkbox must be checked, at least two (minimum two) checkbox must be checked, etc.

How can I use the range validator to validate a valid date?

If I enter 1 January 1000 as the min or max value I get an error saying value cannot be converted to type date, but if I use another format it picks up my entered text as invalid.

Validation controls are used to: Client side validation is good but we have to be dependent on browser and scripting language support. NET Web pages for user input is to be able to check that the information users enter is valid. NET provides a set of validation controls that provide an easy-to-use but powerful way to check for errors and, if necessary, display messages to the user. NETUsually, Validation is invoked in response to user actions like clicking submit button or entering data.

Client side validation is considered convenient for users as they get instant feedback. Suppose, you wish to perform validation on page when user clicks submit button. To make this happen, simply set the Cause Validation property to true for submit button as shown below: Lets understand validation controls one by one with practical demonstration: Required Field Validation Control The Required Field Validator control is simple validation control, which checks to see if the data is entered for the input control.

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