In this course, we will learn to lock and unlock the fields using JavaScript in Microsoft Dynamics CRM. Before we start make sure to go through the below links.

• Understanding JavaScript in Dynamics CRM
• How to use JavaScript in Dynamics CRM?
• Using formContext in JavaScript
• Get & Set value in fields using JavaScript
• Hide / Show fields using JavaScript
• Hide / Show tabs using JavaScript

In Microsoft Dynamics 365, we can dynamically lock (enable) and unlock (disable) fields with help of JavaScript.

JavaScript snippet for locking a field

We will use the property called “setDisable” to lock a particular field dynamically as shown below. In the below example, we will lock the field “Account Address” when field “Account Name” is empty.

function LockUnlock(executionContext) {

    //Initiated Form Context.
    var formContext = executionContext.getFormContext();

    //Getting Value From Field Account Name.
    var AccountName = formContext.getAttribute("accountname").getValue();

    //Condition If Account Name Is Null.
    if (AccountName === null || AccountName === undefined) {

        //Using SetVisible propertly for locking field Account Address.
        formContext.getControl("accountaddress").setDisabled(true);
    }

JavaScript snippet for unlocking a field

We will use the property called “setDisable” to unlock a particular field dynamically as shown below. In the below example, we will unlock the field “Account Address” when field “Account Name” is having valid data.

function LockUnlock(executionContext) {

    //Initiated Form Context.
    var formContext = executionContext.getFormContext();

    //Getting Value From Field Account Name.
    var AccountName = formContext.getAttribute("accountname").getValue();

    //Condition If Account Name Is Null.
    if (AccountName !== null || AccountName !== undefined) {

        //Using SetVisible propertly for unlocking field Account Address.
        formContext.getControl("accountaddress").setDisabled(false);
    }
}

Thus, we learned how to lock and unlock fields using JavaScript in Microsoft Dynamics 365 CRM.