web api crud own methods

Thanks Piyush for answer.But I need web api at runtime modify data and send.

Yes, You can create one application which will get the data from SQL to datatable as per your requirement.

Set it into datagrid and modified it.

Than on button click you can pass modified data to web api.

This is simple way to achive it. 

Hello 

For example I need to get data from mssql to datatable to modify it and then pass it to web api crud method.Not directly from mssql.To select data from two sql table then modify it and pass.

thanks 

Yes it is always possible,

But if you can share your code, so it will more clear what to want to do exactly.