How to implement validation check at runtime

[jspodisus]

hi,

I am implementing a email page.The requirement is: when the user clicks on send button widout filling a field then the the lable before the text box should turn red and a asterix should appear. How should i go about it .Please help

[XeNoMoRpH1030]

The easiest way would be to use a JavaScript library such as MooTools. There are then plugins that you can find that will do exactly what you want.

 

That will potentially add more overhead though as that library is capable of doing much more then just that.

 

One quick suggestion though if you haven't already, if a field is required, you shouldn't wait for the user to click "Send", but already show that it is a required field by using an asterisk and of course saying "* Required Field"

[jspodisus]

  Quote

The easiest way would be to use a JavaScript library such as MooTools. There are then plugins that you can find that will do exactly what you want.

 

That will potentially add more overhead though as that library is capable of doing much more then just that.

 

One quick suggestion though if you haven't already, if a field is required, you shouldn't wait for the user to click "Send", but already show that it is a required field by using an asterisk and of course saying "* Required Field"

 

Thanks for response. let me try your mentioned tool.