dojo - programmatic way to show invalid message - dojo

Question

dojo newbie - giving it a shot.
After submitting a form, If an error is returned from the server I would like to show that message on the dijit.form.ValidationTextBox
var user_email = dijit.byId("login_user_email");
user_email.set("invalidMessage", data["result"]["user_email"]);
//need to force show the tooltip but how???
Any help much appreciated.

Answer 1

See it in action at jsFiddle.
Just show tooltip:
var textBox = bijit.byId("validationTextBox");
dijit.showTooltip(
textBox.get("invalidMessage"),
textBox.domNode,
textBox.get("tooltipPosition"),
!textBox.isLeftToRight()
);
Temporarily switch textBox validator, force validation, restore the original validator:
var originalValidator = textBox.validator;
textBox.validator = function() {return false;}
textBox.validate();
textBox.validator = originalValidator;
Or do both at once.

Answer 2

I think you can show the tooltip via myVTB.displayMessage('this is coming from back end validation'); method

Answer 3

you need to do the validation in the validator-method. like here http://docs.dojocampus.org/dijit/form/ValidationTextBox-tricks
you also need to focus the widget to show up the message! dijit.byId("whatever").focus()

Answer 4

#arber solution is the best when using the new dojo. Just remember to set the focus to the TextBox before calling the "displayMessage" method.
I am using dojo 1.10 which works create as follows:
function showCustomMessage(textBox, message){
textBox.focus();
textBox.set("state", "Error");
textBox.displayMessage(message);
}
Dojo reference guid for ValidationTextBox: https://dojotoolkit.org/reference-guide/1.10/dijit/form/ValidationTextBox.html

Answer 5

I know this question is ancient, but hopefully this'll help someone. Yes, you should use validators, but if you have a reason not to, this will display the message and invalidate the field:
function(textbox, state /*"Error", "Incomplete", ""*/, message) {
textbox.focus();
textbox.set("state", state);
textbox.set("message", message);
}

Answer 6

You can call directly the "private" function:
textBox._set('state', 'Error');
You get the same result as #phusick suggested but with less code and arguably in a more direct and clean way.
Notes:
_set is available to ValidationTextBox as declared on its base class dijit/_WidgetBase.
Live demo:
http://jsfiddle.net/gibbok/kas7aopq/
dojo.require("dijit.form.Button");
dojo.require("dijit.form.ValidationTextBox");
dojo.require("dijit.Tooltip");
dojo.ready(function() {
var textBox = dijit.byId("validationTextBox");
dojo.connect(dijit.byId("tooltipBtn"), "onClick", function() {
dijit.showTooltip(
textBox.get('invalidMessage'),
textBox.domNode,
textBox.get('tooltipPosition'), !textBox.isLeftToRight()
);
});
dojo.connect(dijit.byId("validatorBtn"), "onClick", function() {
// call the internal function which set the widget as in error state
textBox._set('state', 'Error');
/*
code not necessary
var originalValidator = textBox.validator;
textBox.validator = function() {return false;}
textBox.validate();
textBox.validator = originalValidator;
*/
});
});