Which event is fired on Save Button in Dev Express Grid View in C# ASP.NET

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ASP.NET

DevExpress

I am using Dev Express version 9 Grid View in my ASP.Net C# Project .... This grid is generated dynamically , and some data is also showing here which is coming from sql database , now when a user clicks this NEW button Inside this Grid, another window (Refer to Picture 2) inside this grid opens and shows some fields which are also related to my database and is dynamically generated , there’s also a save button inside that window , now i want to know which event is fired when that Save button is clicked ? this main grid id is masterGrid ..... i have tried masterGrid_rowInserting and masterGrid_rowInserted ... but that dosen’t effect that save button .....
Pictures can be downloaded from this link :
https://drive.google.com/file/d/0B8NFUJX6CxVzdzR0WkhQYUxRYUU/edit?usp=sharing[^]