prs/prs.mobile.new/PRS.Mobile/Modules/Requisitions/Edit/RequisitionEdit.xaml

<mobile:MobilePage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:mobile="clr-namespace:InABox.Mobile;assembly=InABox.Mobile.Shared"
             xmlns:local="clr-namespace:PRS.Mobile;assembly=PRS.Mobile"
             x:Class="PRS.Mobile.RequisitionEdit">
    
    <mobile:MobilePage.BindingContext>
        <local:RequisitionEditViewModel x:Name="_viewmodel" />
    </mobile:MobilePage.BindingContext>
    
    <mobile:MobilePage.Resources>
        <mobile:BooleanToBooleanConverter x:Key="NotTrue" Invert="True" />
        <mobile:IntToBooleanConverter x:Key="NotesPageVisible" Value="1" Result="True" />
        <mobile:IntToBooleanConverter x:Key="ItemsPageVisible" Value="2" Result="True" />
        <mobile:IntToBooleanConverter x:Key="ImagesPageVisible" Value="3" Result="True" />
        <mobile:BooleanMatcher x:Key="MatchAll" Type="All" Value="True" />
        <local:RequisitionEditModeToBooleanConverter x:Key="IsEditMode" PickValue="False" EditValue="True"/>
        <local:RequisitionEditModeToBooleanConverter x:Key="IsPickMode" PickValue="True" EditValue="False"/>
    </mobile:MobilePage.Resources>
    
    <mobile:MobilePage.PrimaryMenu>
    
        <mobile:MobileMenuButton
            x:Name="_save"
            Image="save"
            IsVisible="{Binding IsChanged}"
            Clicked="_save_OnClicked"/>
    
        <mobile:MobileMenuButton
            Image="camera" >
            <mobile:MobileMenuButton.IsVisible>
                <MultiBinding Converter="{StaticResource MatchAll}">
                    <Binding Path="IsChanged" Converter="{StaticResource NotTrue}"/>
                    <Binding Source="{x:Reference _tabStrip}" Path="SelectedIndex" Converter="{StaticResource ImagesPageVisible}" />
                </MultiBinding>
            </mobile:MobileMenuButton.IsVisible>
            <mobile:MobileMenuButton.Items>
                <mobile:MobileMenuItem Text="Take Photo" Clicked="TakePhoto_Clicked" />
                <mobile:MobileMenuItem Text="Browse Library" Clicked="BrowseLibrary_Clicked" />
            </mobile:MobileMenuButton.Items>
    
        </mobile:MobileMenuButton>
    
        <mobile:MobileMenuButton
            Image="plus" Clicked="AddNote_Clicked">
            <mobile:MobileMenuButton.IsVisible>
                <MultiBinding Converter="{StaticResource MatchAll}">
                    <Binding Path="IsChanged" Converter="{StaticResource NotTrue}"/>
                    <Binding Source="{x:Reference _tabStrip}" Path="SelectedIndex" Converter="{StaticResource NotesPageVisible}" />
                </MultiBinding>
            </mobile:MobileMenuButton.IsVisible>
        </mobile:MobileMenuButton>
    
        <mobile:MobileMenuButton
            Image="plus" Clicked="AddItem_Clicked">
            <mobile:MobileMenuButton.IsVisible>
                <MultiBinding Converter="{StaticResource MatchAll}">
                    <Binding Path="IsChanged" Converter="{StaticResource NotTrue}"/>
                    <Binding Source="{x:Reference _tabStrip}" Path="SelectedIndex" Converter="{StaticResource ItemsPageVisible}" />
                    <Binding Path="Mode" Converter="{StaticResource IsEditMode}" />
                </MultiBinding>
            </mobile:MobileMenuButton.IsVisible>
        </mobile:MobileMenuButton>
    
        <mobile:MobileMenuButton
            Image="barcode" Clicked="ScanItem_Clicked">
            <mobile:MobileMenuButton.IsVisible>
                <MultiBinding Converter="{StaticResource MatchAll}">
                    <Binding Path="IsChanged" Converter="{StaticResource NotTrue}"/>
                    <Binding Source="{x:Reference _tabStrip}" Path="SelectedIndex" Converter="{StaticResource ItemsPageVisible}" />
                    <Binding Path="Mode" Converter="{StaticResource IsPickMode}" />
                </MultiBinding>
            </mobile:MobileMenuButton.IsVisible>
        </mobile:MobileMenuButton>
    
    </mobile:MobilePage.PrimaryMenu>
    
    <mobile:MobilePage.PageContent>
        
        <Grid
            RowSpacing="5"
            Margin="5">
        
            <Grid.RowDefinitions>
                <RowDefinition Height="*"/>
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
        
            <mobile:MobilePageStack
                x:Name="_tabView"
                Grid.Row="0"
                SelectedIndex="{Binding Source={x:Reference _tabStrip}, Path=SelectedIndex}">
        
                <mobile:MobilePageStack.Items>
        
                    <mobile:MobilePageStackItem>
                        <mobile:MobilePageStackItem.Content>
                            <local:RequisitionEditDetailsView x:Name="Details" BindingContext="{Binding .}" Changed="Details_OnOnDetailsChanged"/>
                        </mobile:MobilePageStackItem.Content>
                    </mobile:MobilePageStackItem>
        
        
                    <mobile:MobilePageStackItem>
                        <mobile:MobilePageStackItem.Content>
                            <local:RequisitionEditNotesView x:Name="Notes" BindingContext="{Binding .}"/>
                        </mobile:MobilePageStackItem.Content>
                    </mobile:MobilePageStackItem>
        
                    <mobile:MobilePageStackItem>
                        <mobile:MobilePageStackItem.Content>
                            <local:RequisitionEditItemsView x:Name="Items" BindingContext="{Binding .}"/>
                        </mobile:MobilePageStackItem.Content>
                    </mobile:MobilePageStackItem>
        
                    <mobile:MobilePageStackItem>
                        <mobile:MobilePageStackItem.Content>
                            <local:RequisitionEditDocumentsView x:Name="Documents" BindingContext="{Binding .}"/>
                        </mobile:MobilePageStackItem.Content>
                    </mobile:MobilePageStackItem>
        
                </mobile:MobilePageStack.Items>
            </mobile:MobilePageStack>
        
            <mobile:MobileTabStrip
                x:Name="_tabStrip"
                Grid.Row="1"
                SelectionChanged="_tabStrip_OnSelectionChanged">
                <mobile:MobileTabStrip.Items>
                    <mobile:MobileTabStripItem Text="Info"/>
                    <mobile:MobileTabStripItem Text="Notes"/>
                    <mobile:MobileTabStripItem Text="Items"/>
                    <mobile:MobileTabStripItem Text="Images"/>
                </mobile:MobileTabStrip.Items>
            </mobile:MobileTabStrip>
        
        </Grid>

    </mobile:MobilePage.PageContent>
</mobile:MobilePage>