Untitled

<AbsoluteLayout>
            <Grid RowDefinitions="Auto, *" Margin="10" ColumnSpacing="10" AbsoluteLayout.LayoutBounds="0,0,1,1"
              AbsoluteLayout.LayoutFlags="All">
                <Label Grid.Row="0" Text="School Modification" Margin="10,0"
                VerticalOptions="Center" FontSize="30" FontAttributes="Bold"
                HorizontalOptions="Start" TextColor="{StaticResource TextColorWhite}"/>
                <Frame CornerRadius="10" Grid.Row="1" VerticalOptions="CenterAndExpand" BackgroundColor="{StaticResource FrameColor_1}">
                    <Grid Margin="10" RowDefinitions="Auto,Auto">
                        <Grid Grid.Row="0" RowDefinitions="Auto,Auto,Auto,Auto,Auto">
                            <Entry Grid.Row="0" Placeholder="School ID" BackgroundColor="{StaticResource FrameColor_1}" 
                               x:Name="entryschid" IsEnabled="False"
                               PlaceholderColor="{StaticResource TextSoft}" TextColor="{StaticResource TextColorWhite}"/>
                            <Entry Grid.Row="1" Placeholder="School Name" BackgroundColor="{StaticResource FrameColor_1}"
                               x:Name="entryschname"
                               PlaceholderColor="{StaticResource TextSoft}" TextColor="{StaticResource TextColorWhite}"/>
                            <Entry Grid.Row="2" Placeholder="School Address" BackgroundColor="{StaticResource FrameColor_1}"
                               x:Name="entryschaddress"
                               PlaceholderColor="{StaticResource TextSoft}" TextColor="{StaticResource TextColorWhite}"/>
                            <Entry Grid.Row="3" Placeholder="Subscription" BackgroundColor="{StaticResource FrameColor_1}"
                               x:Name="entrysubscription"
                               PlaceholderColor="{StaticResource TextSoft}" TextColor="{StaticResource TextColorWhite}"/>
                            <Entry Grid.Row="4" Placeholder="Status" BackgroundColor="{StaticResource FrameColor_1}"
                               x:Name="entrystatus"
                               PlaceholderColor="{StaticResource TextSoft}" TextColor="{StaticResource TextColorWhite}"/>
                        </Grid>
                        <Button Grid.Row="1" BackgroundColor="{StaticResource ButtonColor}"
                            Text="Modify" TextTransform="None" TextColor="{StaticResource TextColorBlack}"
                            x:Name="btnmodify" CornerRadius="8" Clicked="btnmodify_Clicked"/>
                    </Grid>
                </Frame>
            </Grid>
            <StackLayout
            x:Name="progressLoading"
            IsVisible="False"
            AbsoluteLayout.LayoutBounds="0,0,1,1"
            AbsoluteLayout.LayoutFlags="All"
            Opacity="0.5"
            BackgroundColor="Black">
                <ActivityIndicator
                x:Name="ai"
                IsRunning="True" IsVisible="True"
                VerticalOptions="CenterAndExpand"
                HorizontalOptions="CenterAndExpand"
                Color="{StaticResource ButtonColor}" Margin="0,300,0,0" />
                <Label Text="We're processing your request, please wait..." Margin="0" VerticalOptions="CenterAndExpand" HorizontalOptions="CenterAndExpand" TextColor="WhiteSmoke"/>
            </StackLayout>
        </AbsoluteLayout>