how to use Grid in xamarin code example

Example: xamarin froms grid view

<Grid> 
<Grid.RowDefinations>
<RowDefination Height = "Auto"/>
<RowDefination Height = "Auto"/>
<Grid.RowDefinations>

<Grid.ColumnDefinations>
<ColumnDefination Width = "Auto"/>
<ColumnDefination Width = "Auto"/>
<Grid.ColumnDefinations>

<Label Grid.Row ="0"
       Grid.Column ="0"//>
<Label Grid.Row ="0"
       Grid.Column ="1"/>
<Label Grid.Row ="0"/>
<Grid>