preventing event from happening on attached onkeypress function

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Posted on by okank

function AttachKeyPressValidation(){
    Xrm.Page.getControl("new_field").addOnKeyPress(ValidateOnlyNumber);
}

var ValidateOnlyNumber = function (context) {
    var field_value = context.getEventSource().getValue();   
    if (isNaN(field_value )) {
         /// EVENT MUST RETURN FALSE HERE TO PREVENT INPUT
    }
}

How can I reach to the event from the context here to make it return false to prevent invalid input on key press event.

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okank 70 on at

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RE: preventing event from happening on attached onkeypress function

I couldn't find a way to access the key press event and return false so I did it like you, setting the attribute.
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RaviKashyap 55,410 on at

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RE: preventing event from happening on attached onkeypress function

Hi okank,

I am not sure if you would be able to get the context abd return false but you can achieve this requirement by following script. I have added this on account number field of account entity-

============

function AttachKeyPressValidation() {

var keyPressFcn = function () {

var userInput = Xrm.Page.getControl("accountnumber").getValue();

if (isNaN(userInput)) {

var f = userInput.substring(0, userInput.length);

Xrm.Page.getAttribute("accountnumber").setValue(f);

}

};

Xrm.Page.getControl("accountnumber").addOnKeyPress(keyPressFcn);

}

================

Hope this helps.