How to create tree view using grid system

I want to make a tree view using grid system below my example, please can anyone help me with that.

this is explained in the docs:

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thanks for you reply @mikrochipkid i saw but i want to make a tree view which i have mention above please can you suggest me how can i do that

by giving each col the desired size. so the first one would be something like:

<ion-row>
    <ion-col size="10"></ion-col>
    <ion-col size="1"></ion-col>
    <ion-col size="1"></ion-col>
</ion-row>