DataVerse JavaScript Useful Things

JavaScript to save a form:

function saveRecordOnChange(executionContext) {

    try {
        let formContext = executionContext.getFormContext();
        if (formContext) {
            let confirmStrings = { text: "This is the text in the dialog box", title: "This is the Title" };
            let confirmOptions = { height: 200, width: 450 };

            // Open Confirm Dialog
            Xrm.Navigation.openConfirmDialog(confirmStrings, confirmOptions).then(
                function (success) {
                    if (success.confirmed) {
                        // Save the Record if OK is clicked
                        formContext.data.save();
                    }
                });
        }
    }
    catch (ex) {
        throw new Error(ex.message);
    }
}

Get and Set Values:

// get a field value
formContext.getAttribute("cds_myfieldname").getValue();
// set a field value
formContext.getAttribute(schemaname).setValue("myvalue");

Set entities to search on a look up: See MS Docs

function onFormRestrictEntity(executionContext) {
        var formContext = executionContext.getFormContext();

        //formContext.getControl(arg).setEntityTypes([entityLogicalNames]);

        formContext.getControl('customerid').setEntityTypes(['contact']);
    }

Get User Info including GUID

For full user context see the MS doc.

// Get the User GUID
var UserId = Xrm.Utility.getGlobalContext().userSettings.userId.replace("{", "").replace("}", "");

Use the built in dialogs

Xrm.Navigation.openErrorDialog({ message: 'The important Date field needs to be populated.'});