WinForms DataGridView: Search for row index of value from column name?

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C#

I have a DataGridView on a form, the gridview has 5 columns, and x amount of rows.
The user can fill out a form to add a new row to the table and delete a selected index.
DataTable:

Name Type Event Container Image

obj1 typ1 event1 cn1 c:/obj1.png

obj2 typ2 event2 cn2 c:/obj2.png




I need to loop through all of the row names to find "obj2" from column "Name".

I need to find out if the first cell in a row contains "obj", something to tell me if it exists or not.

How do I do this in code?