You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.&nbsp;<br /> You add a DataGrid named gridContacts that is data-bound to a collection of Contacts. Each item has the ContactName and Phone properties.&nbsp;&nbsp;<br /> The DataGrid contains a column named ContactNameColumn that is bound to ContactName.&nbsp;<br /> You write the following code fragment.&nbsp;<br /> <img src="https://img.ppkao.com/2018-07/yiyu/2018072715242379695.jpg" /><br /> You need to ensure that the application meets the following requirements:&nbsp;<br /> Phone number is shown as a row detail when the row is selected.<br /> Only ContactName can be edited.&nbsp;<br /> What should you do?（）<p> You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.&nbsp;<br /> You add a DataGrid named gridContacts that is data-bound to a collection of Contacts. Each item has the ContactName and Phone properties.&nbsp;&nbsp;<br /> The DataGrid con