This can be very helpful, many times we need to know for a specific field type, the default value, min value, max value, all this when applies of course.
Below we have the examples for doing that.
Task
Example
Get the type of attribute
var attributeType = Xrm.Page.getAttribute(0).getAttributeType();
Assigns the string value that represents the type of attribute for the first attribute to the attributeType variable.
Get how the attribute is formatted
var attributeFormat = Xrm.Page.getAttribute(0).getFormat();
Assigns the string value that represents the format of the first attribute to the attributeFormat variable.
Get the initial value of a Boolean or optionset attribute
var attributeInitialValue = Xrm.Page.getAttribute("address1_addresstypecode").getInitialValue();
Assigns the initial number value of the Address Type field to the attributeInitialValue variable.
Determine whether an attribute value has changed
var isNameChanged = Xrm.Page.getAttribute("name").getIsDirty();
Assigns a Boolean value that indicates whether the Account Name field value has changed to the isNameChanged variable.
Determines whether a lookup attribute represents a partylist lookup.
var isPartyList = Xrm.Page.getAttribute("to").getIsPartyList();
Assigns a Boolean value that indicates whether the Email entity to field represents a party list lookup.
This method is only available for Updated entities.
Get the maximum allowed value for an attribute that contains a number
var newValue = 100000000000001; var newValueBelowMax = (newValue < Xrm.Page.getAttribute("creditlimit").getMax())
Assigns a Boolean value that indicates whether the value of the newValue variable exceeds the maximum value allowed for theCredit Limit field to the newValueBelowMax variable.
Get the maximum allowed length for an attribute that contains a string
var newAccountName = "A Store"; var nameTooLong = (newAccountName.length > Xrm.Page.getAttribute("name").getMaxLength())
Assigns a Boolean value that indicates whether the value of the newAccountName variable exceeds the maximum length allowed for the Account Name field to the nameTooLong variable.
Get the minimum allowed value for an attribute that contains a number
var newValue = -1; var newValueBelowMin = (newValue < Xrm.Page.getAttribute("creditlimit").getMin())
Assigns a Boolean value that indicates whether the value of the newValue variable is below the minimum value allowed for theCredit Limit field to the newValueBelowMin variable.
Gets the logical name of an attribute
var attributeName = Xrm.Page.getAttribute(0).getName();
Assigns the logical name value of the first attribute on the page to the attributeName variable
Get the option object representing a value
var addressTypeOption = Xrm.Page.getAttribute("address1_addresstypecode").getOption(1); alert(addressTypeOption.text); //displays ‘Bill To’
Shows an alert that displays the text of the Address Type field option with a value of 1.
Get a number value representing the level of precision for the number attribute
var creditLimitPrecision = Xrm.Page.getAttribute("creditlimit").getPrecision();
Assigns the precision value of the Credit Limit field to the creditLimitPrecision variable.
Get a string value representing whether the an attribute is required to have a value
var creditLimitRequired = Xrm.Page.getAttribute("creditlimit").getRequiredLevel();
The creditLimitRequired variable value may be none, required, or recommended.
Change whether data is required in a field in order to save a record
Xrm.Page.getAttribute("creditlimit").setRequiredLevel("required");
Makes the Credit Limit field required.
Determine whether the data in an attribute will be submitted when the record is saved
var nameSubmitMode = Xrm.Page.getAttribute("name").getSubmitMode();
The nameSubmitMode variable value will be either always, never, or dirty to represent the submitMode for the Account Name field..
Control whether data in an attribute will be saved when the record is saved
Xrm.Page.getAttribute("name").setSubmitMode("always");
The example will force the Account Name field value to always be saved even when it has not changed.
When field level security has been applied to an attribute, determine whether a user has privileges to perform create, read, or update operations on the attribute. For more information, see How field security can be used to control access to field values in Microsoft Dynamics CRM
var canUpdateNameAttribute = Xrm.Page.getAttribute("name").getUserPrivilege().canUpdate;
Assigns a Boolean value that represents the user’s privilege to update the Account Name field to thecanUpdateNameAttribute variable.