how to add treeview inside datagridview

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C#

DataGridView

I've bind datagridview dynamically, there are some items in one column which are same for few records and i want to add one "+" on the first one, while click on the "+" all the items with same name will display.
Here is my datagridview IMAGE[^].
Please help me to add treeview like structure inside datagridview.

Thanks in advance.