incell grid editing as textbox with validate to confirmation dialog

[shashank]

I have a set of custom filters(Country, state, county, Missing city) and if I select all three and click a <generate report> button ,
I want to see a custom grid (Custom Editing in ASP.NET Core Grid Component Demo | Telerik UI for ASP.NET Core) with columns 
Country; State; County; 
and Missing City ID as textbox with validate for each as shown in image attached. 
If I 
1. enter the missing city ID inside the cell and click validate, a confirmation dialog should open with city ID and name. 
2. confirmation dialog will have the city id with details as Name and Zipcode, as shown in image
3. Upon confirmation I want to save the city id to missing records and update the grid.

How do I achieve this using the demo from above?

[Peter]

Hello Shashank,

Thank you for contacting us!

I have forwarded your inquiry to a Sales representative and he will contact you shortly to address all your questions.

Let me know if there's anything else we can do.

Regards,
Peter
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