Prevent saving crm record using preventDefault is nor working

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Posted on by FikriHailal

115

I want to cancel saving process if the new_name is existing in the current entity.
Here's what i have tried:

function preventsave(context){
	var login_name = Xrm.Page.getAttribute("new_name").getValue();
	var Entity = "new_parentrecord";
	var Select = "?$select=new_name";
	var Filter = "&$filter=new_name eq '"  login_name  "'";
	 
	var saveEvent = context.getEventArgs();
//alert(login_name);
	Xrm.WebApi.retrieveMultipleRecords(Entity, Select   Filter).then(
		function success(result) {
			alert("Login Name Exist !!");
			if (result.entities[0].new_name !== null) {
				SetPageNotification("Login Name Exist !", "INFO", "InfoNotification");
				saveEvent.preventDefault(); //1st prevent
			}
		},
		function (error) {
			console.log(error.message);
		}
	);
	saveEvent.preventDefault(); //2nd prevent
}

function SetPageNotification(aMessage, aType, aNotificationName) {

       Xrm.Page.ui.setFormNotification(
         aMessage,
         aType,
         aNotificationName
       );
   }

function ClearAllNotifications() {
       ClearPageNotification("InfoNotification");
}

after trial and error i noticed that the 1st prevent is not working. but the 2nd prevent is working. Can you help me to make the 1st prevent to work ?

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FikriHailal 115 on at

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RE: Prevent saving crm record using preventDefault is nor working

Thanks for helping me :)
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Fubar 2,752 on at

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RE: Prevent saving crm record using preventDefault is nor working

Just played with await:

async function savetest(ex){ await Xrm.WebApi.retrieveMultipleRecords("account", "?$select=name&$top=3").then( function success(result) { alert('alert 1'); for (var i = 0; i < result.entities.length; i ) { console.log(result.entities[i]); } }, function (error) { console.log(error.message); } ); alert('alert 2'); }

My form on save calls savetest

alert 1 occurs before alert 2

Edit: after a bit more trial an error I found that the await plays havoc with the preventDefault, it appears to make it work you would need a global variable, preventDefault prior to the await, inside the success set the global variable and then initiate a re-save - a little similar to some of the code here butenko.pro/.../
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Community Member on at

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RE: Prevent saving crm record using preventDefault is nor working

Hi FikriHailal,

As LA said, the 2^nd prevent excute before 1^st because that WebApi is by default asynchronous.

So you can try to use synchronous odata to build request.

var req = new XMLHttpRequest(); req.open("GET", Xrm.Page.context.getClientUrl() "/api/data/v9.1/new_customs?$select=new_name&$filter=new_name eq 'A'", false); req.setRequestHeader("OData-MaxVersion", "4.0"); req.setRequestHeader("OData-Version", "4.0"); req.setRequestHeader("Accept", "application/json"); req.setRequestHeader("Content-Type", "application/json; charset=utf-8"); req.setRequestHeader("Prefer", "odata.include-annotations=\"*\""); req.onreadystatechange = function() { if (this.readyState === 4) { req.onreadystatechange = null; if (this.status === 200) { var results = JSON.parse(this.response); for (var i = 0; i < results.value.length; i ) { var new_name = results.value[i]["new_name"]; } } else { Xrm.Utility.alertDialog(this.statusText); } } }; req.send();

And the function that you need is check existing name, why not use duplicate detection, which is OOB function of the system.

1.Enable Duplicate detection.

Go Setting > Data management > Duplicate detection settings.

2.set Duplicate detection rule.

Go Setting > Data management > Duplicate detection rules.

Save and publish it.

3.Test.

You can refer following link to learn more about duplicate detection:

https://rocketcrm.co.uk/dynamics-365-duplicate-detection-rules/

Regards,

Leah Ju

Please mark as verified if the answer is helpful. Welcome to join hot discussions in Dynamics 365 Forums.
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Fubar 2,752 on at

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RE: Prevent saving crm record using preventDefault is nor working

WebApi is by default asynchronous as such the code will complete (or get to your last preventDefault) before the success function has completed.

Last time I had to do something similar we used oData with a synchronous call, but I believe I saw someone the other day suggest that you can a use a JavaScript 'await' as the WebApi uses promises.