Bdtjtk

Here is my Listview
Inside Listview button IsEnabled Property not working,IsEnabled False not working.
I followed This step but still its not working
https://forums.xamarin.com/discussion/47857/setting-buttons-isenabled-to-false-does-not-disable-button
Inside My ViewModel

OrderItems=PopuldateOrders();// getting List Items



<ListView x:Name="OrderItems" VerticalOptions="Fill" 

                                  BackgroundColor="White" HasUnevenRows="True" 

                                  SeparatorVisibility="None" ItemsSource="{Binding OrderItems}">

                            <ListView.ItemTemplate>

                                <DataTemplate>

                                    <ViewCell>

                                        <ContentView BackgroundColor="White">

                                            <Grid BackgroundColor="Transparent" Margin="0" VerticalOptions="FillAndExpand" x:Name="Item">

                                                <Grid.RowDefinitions>

                                                    <RowDefinition Height="*" />

                                                </Grid.RowDefinitions>

                                                <Grid.ColumnDefinitions>

                                                    <ColumnDefinition Width="10*"/>

                                                    <ColumnDefinition Width="18*"/>

                                                    <ColumnDefinition Width="18*"/>

                                                    <ColumnDefinition Width="17*"/>

                                                    <ColumnDefinition Width="20*"/>

                                                    <ColumnDefinition Width="17*"/>

                                                </Grid.ColumnDefinitions>

                                                <Label Text="{Binding PullSheetId}" Grid.Row="0" IsVisible="False"/>

                                                <controls:CheckBox Checked="{Binding IsChecked}" Grid.Row="0" Grid.Column="0" IsVisible="{Binding IsEnableShipBtn}" Scale=".8"/>

                                                <Label Text="{Binding KitSKU}" Grid.Row="0" Grid.Column="1" 

                                                   HorizontalTextAlignment="Center" VerticalOptions="Center" FontSize="Small" TextColor="Black"/>

                                                <Label Text="{Binding SKU}" Grid.Row="0" Grid.Column="2" 

                                                   HorizontalTextAlignment="Center" VerticalOptions="Center" FontSize="Small" TextColor="{Binding ItemColor}"/>

                                                <Label Text="{Binding ReqPackQty}" Grid.Row="0" Grid.Column="3" 

                                                   HorizontalTextAlignment="Center" VerticalOptions="Center" FontSize="Small" TextColor="Black"/>

                                                <local:EntryStyle Scale=".6" Text="{Binding ScanQuantity}" Grid.Row="0" Keyboard="Numeric"

                                                                  Grid.Column="4" HorizontalTextAlignment="Center" 

                                                                  VerticalOptions="Center" Placeholder="Qty" IsEnabled="True" x:Name="QtyEntry"

                                                                  >

                                                    <local:EntryStyle.Behaviors>

                                                        <eventToCommand:EventToCommandBehavior EventName="TextChanged"  

                                                                                               Command="{Binding Source={x:Reference OrderItems}, Path=BindingContext.ChangeItemQty}"

                                                                                                CommandParameter="{Binding Source={x:Reference Item}, Path=BindingContext}"

                                                                                               />

                                                    </local:EntryStyle.Behaviors>

                                                </local:EntryStyle>

                                                <Button Text="Ship" Scale=".6" Grid.Row="0" Grid.Column="5"  

                                                    VerticalOptions="Center" BackgroundColor="#6eb43a" TextColor="White" 

                                                    BorderRadius="20" CornerRadius="20" BorderColor="{Binding isError}" BorderWidth="3" 

                                                    MinimumWidthRequest="60"

                                                        x:Name="ShipBtn" 

                                                        Command="{Binding Source={x:Reference OrderItems}, Path=BindingContext.SubmitSingleItem}" 

                                                        IsEnabled="{Binding IsEnableShipBtn}" IsVisible="{Binding IsEnableShipBtn}"

                                                        CommandParameter="{Binding .}" 

                                                        />



                                            </Grid>

                                        </ContentView>

                                    </ViewCell>

                                </DataTemplate>

                            </ListView.ItemTemplate>

                            <ListView.Behaviors>

                                <eventToCommand:EventToCommandBehavior EventName="ItemTapped" Command="{Binding PackerItemsItemTapped}"/>

                            </ListView.Behaviors>

                        </ListView>

How to solve this?