prs/prs.mobile/comal.timesheets/DataGridHeaderRow.xaml

<?xml version="1.0" encoding="UTF-8"?>
<ContentView xmlns="http://xamarin.com/schemas/2014/forms" 
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="comal.timesheets.DataGridHeaderRow">
  <ContentView.Content>
        <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="40"/>
            </Grid.ColumnDefinitions>
            <Button Grid.Column="0" x:Name="headerBtn" Clicked="HeaderBtn_Clicked"/>
            <Image Source="filter.png">
                <Image.GestureRecognizers>
                    <TapGestureRecognizer Tapped="Image_tapped"/>
                </Image.GestureRecognizers>
            </Image>
        </Grid>
  </ContentView.Content>
</ContentView>