How to create a custom property sir, in backoffice itself or through code, is there any reference to do this, please share me

Thank You sir, And another doubt, is it possible to use regex for restrict past dates in datepicker editor custom validation on umbraco itself

No, regex has no concept of time.

Okay, sir. If I create the files according to the Umbraco documentation in the solution, where can I set the restriction to disable past dates in the date picker?

This is the umbraco src for the datepicker.

https://github.com/umbraco/Umbraco-CMS/tree/6d4809132815b41a6e048904d0769c042abde1cc/src/Umbraco.Web.UI.Client/src/views/propertyeditors/datepicker

You could use these as the template for your own DatePicker and add a check either in the onValueChanged or SetDate functions

Hi sir, i have create custom editor by the use of umbraco document https://docs.umbraco.com/umbraco-cms/v/10.latest-lts/tutorials/creating-a-property-editor i added all the files , which is mentioned in this document, but the property are not showned in the backoffice Did i miss anything in this.

Please help me to rectify this sir.

Where in your project structure have you placed the files?

I have created a "App_Plugins" folder in project like this in picture

the package.manifest.json should just be package.manifest

Sir i have create package.manifest by using json file, is it ok to use that?

yes, you just need to remove the .json extension otherwise Umbraco will not find it.

Yes, I tried this, still the editor didn't displayed in Backoffice sir.

Hi, sir. I am currently working on an Umbraco migration. If you are aware of this, please help me clear this why we need to upgrade 8 to umbraco 8 latest version before umbraco 10 migration?