Dynamics CRM Javascript制作表单只读-TypeError：control.getDisabled不是函数

Question

Attempting to make the price list form and price items form read only and using the below java script however keep getting the following error; One of the scripts for this record has caused an error. For more details, download the log file. TypeError: control.getDisabled is not a function at makeFieldsReadOnly

Using Dynamics CRM 2016 and this JS runs on load of the form

function onLoad() {
    var formType = Xrm.Page.ui.getFormType();

    if (formType == 2)
        makeFieldsReadOnly(); }


function makeFieldsReadOnly() {
    var controls = Xrm.Page.ui.controls.get();
    for (var i in controls) {
        var control = controls[i];
        if (!control.getDisabled()) {
            control.setDisabled(true);
       }
    } }

Any suggestions on why this may be failing , working fine in CRM 2011?

Answer 1

Not all the controls you are iterating over can be disabled and thus the code is failing. It throws an error when it tries to execute getDisabled on a control, which does not have this function declared.

This can be fixed by checking if the necessary functions exist on the control first:

function onLoad() {
    var formType = Xrm.Page.ui.getFormType();

    if (formType == 2)
        makeFieldsReadOnly(); }


function makeFieldsReadOnly() {
    var controls = Xrm.Page.ui.controls.get();
    for (var i in controls) {
        var control = controls[i];
        if (control.getDisabled && control.setDisabled && !control.getDisabled()) {
            control.setDisabled(true);
       }
    } 
}