Validating textbox using javascript

09-Feb-2015 17:21

This is a good source of info Startv20/aspnet/doc/validation/second option is to find all textboxes and display the message Required field validators would work great.

However, if you prefer a j Query solution you could try something like this.

With a little work you could easily turn this into a j Query helper method that you could reuse in all sorts of situations. Add("onblur", "Check Required(;"); Text Box3.

Also, there's a large variety of j Query validation plugins that would helpful. Add("onblur", "Check Required(;"); Text Box2.

var validate Text Areas = function() { $("*").remove Class("error"); $("#errormessage").text(""); var valid = true; $("input[type=textarea]").each( function() { if ($(this).val() == "") { $(this)Class("error"); valid = false; } } ); if (!

valid) { $("#errormessage").val(""); } return valid; } You would call this method during your form validation.

It assumes that all textareas on your form must be non-blank but you could easily change that if needed.

This would apply an error css class to highlight your required fields and display an appropriate message to the user.

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set validation group property for all validators, summary and button.

when you click the button , it will validate all validators from its validation group and display the message.

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