Dynamics Community Forum Thread Details

Want to add a custom field that displays both 12 hours and 24 hours time format option to choose.

Hi Salahuddin,

Date and time field is controlled by personal settings or system settings, so your requirement could be achieved by changing current user settings: the method I gave out is based on that we can change Current Format to different countries In Set Personal Options dialog, in English(US) format, the time is 12 hour format while in Italian(Italy), it's 24h.

My core logic is below,

// localeid: 1033 -> USA, 1040 -> Italy

var entity = {};

entity.LocaleId = 1033;

var userid = Xrm.Page.context.getUserId().replace("{", "").replace("}", "");

var req = new XMLHttpRequest();

req.open("POST", Xrm.Page.context.getClientUrl() + "/XRMServices/2011/OrganizationData.svc/UserSettingsSet(guid\'"+ userid +"\')", true);

req.setRequestHeader("Accept", "application/json");

req.setRequestHeader("Content-Type", "application/json; charset=utf-8");

req.setRequestHeader("X-HTTP-Method", "MERGE");

req.onreadystatechange = function() {

if (this.readyState === 4) {

this.onreadystatechange = null;

if (this.status === 204 || this.status === 1223) {

// Perform your success action

} else {

alert(this.statusText);

}

};

req.send(JSON.stringify(entity));

I send a PATCH Ajax request to update current user format settings.

You could find supported methods and writable attributes for updating user's settings in this official doc:

https://docs.microsoft.com/en-us/dynamics365/customer-engagement/developer/entities/usersettings#BKMK_LocaleId

Note:

I tried to update single time format, but it didn't change time format so I have to update country format directly.
By updating at country level, all format attributes will be changed, you could customize format settings for different countries to meet your business requirement.
I just gave a part of implementation, you could create a web resource with an option lists and a button to execute the update for your form, then refresh page. (Because its a back-end action).

If you're not familiar with JavaScript and how to work with web resource, i'm glad to give more steps.