function ValidateField(){
var bAllow= true;
//some checking here
if (bAllow == true && apl.val().trim() == "")
{
showDialog();
showDialog().done(function() {
return true; // wanna return true, but not success
}).fail(function() {
return false; //wanna return false, but not success
});
return false; //stop it to execute to next line
}
return bAllow; //success return }
function showDialog(){
var def = $.Deferred();
var modPop = '<div id="diaCom" title="Information?"><p>something something</p></div>';
$("#diaCom").remove();
$(modPop).appendTo('body');
$("#diaCom").dialog({
resizable: false,
draggable: false,
height:150,
width:300,
modal: true,
buttons: {
"Ok": function() {
def.resolve();
$(this).dialog("close");
},
"Cancel": function() {
def.reject();
$(this).dialog("close");
}
}
});
return def.promise();
}
//on click
if (validateField() == true){
//do something
}else{
//do something
}
hi everyone, any chance to return the value? I wish to return the true and false through showDialog().done() and fail for validatefield() function, but it not working as what I want, I can't assign to bAllow as I had already have a return false to hold the dialog to execute its next line, any idea? Or it is correct to do like these?
Deferred() A factory function that returns a chainable utility object with methods to register multiple callbacks into callback queues, invoke callback queues, and relay the success or failure state of any synchronous or asynchronous function.
A promise represents a value that is not yet known. This can better be understood as a proxy for a value not necessarily known when the promise is created. A deferred represents work that is not yet finished. A deferred (which generally extends Promise) can resolve itself, while a promise might not be able to do so.
promise() will attach the methods onto it and then return this object rather than create a new one. This can be useful to attach the Promise behavior to an object that already exists. If you are creating a Deferred, keep a reference to the Deferred so that it can be resolved or rejected at some point.
The defer attribute is a boolean attribute. If the defer attribute is set, it specifies that the script is downloaded in parallel to parsing the page, and executed after the page has finished parsing. Note: The defer attribute is only for external scripts (should only be used if the src attribute is present).
Well, This can work.
Your dialog function... showDialog()
function confirmation(question) {
var defer = $.Deferred();
$('<div></div>')
.html(question)
.dialog({
autoOpen: true,
modal: true,
title: 'Confirmation',
buttons: {
"Yes": function () {
defer.resolve(true); //answer
$(this).dialog("close");
},
"No": function () {
defer.resolve(false); //answer
$(this).dialog("close");
}
},
close: function () {
$(this).remove(); //removes this dialog div from DOM
}
});
return defer.promise();
}
and then the code where you use the function...
function onclick(){
var question = "Do you want to start a war?";
confirmation(question).then(function (answer) {
if (answer) {
alert("this is obviously " + answer);//TRUE
} else {
alert("and then there is " + answer);//FALSE
}
});
}
This may seem wrong for most people. But there is always some situations where you just can't go without return from JQuery Dialog.
This will basically mimic the confirm() function. But with ugly code and a nice confirm box look :)
I hope this helps some people out.
function bsConfirm(question) {
var defer = $.Deferred();
BootstrapDialog.show({
type: BootstrapDialog.TYPE_PRIMARY,
title: 'Confirmation',
message: question,
closeByBackdrop: false,
closeByKeyboard: false,
draggable: true,
buttons: [{
label: 'Yes',
action: function (dialog) {
defer.resolve(true);
dialog.close();
}
}, {
label: 'No',
action: function (dialog) {
defer.resolve(false);
dialog.close();
}
}],
close: function (dialog) {
dialog.remove();
}
});
return defer.promise();
}
function bsAlert(error, message) {
BootstrapDialog.show({
type: error ? BootstrapDialog.TYPE_DANGER : BootstrapDialog.TYPE_SUCCESS,
title: error ? "Error" : "Success",
message: message,
closeByBackdrop: false,
closeByKeyboard: false,
draggable: true,
buttons: [{
label: 'OK',
action: function (d) {
d.close();
}
}]
});
}
and using it (Pretty much the same way)
bsConfirm("Are you sure Bootstrap is what you wanted?").then(function (answer) {
if (answer) {
bsAlert("Well done! You have made the right choice");
} else {
bsAlert("I don't like you!");
}
});
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