Hi Venkata,
In short, you want to add a button with a microflow to the datagrid header. The microflow should have a parameter of the ECR object and use this in a show page action to open a page and give the object as context. On this page use a dataview with context as the datasource. Within this view you can use text with parameters to lay out all the details of the ECR.
But this is all pretty basic, I would advice you check out some learning paths like this one: https://academy.mendix.com/link/paths/56/Create-an-App-with-Advanced-Page-Building