WPF

Collin Jasnoch wrote:

Your respnoce was simply a "You shouldn't do that." Nothing more nothing less.
No explanation other than the claim of over engineering.

Collin Jasnoch wrote:

So, how are you going to handle a 3rd party controlled model? Or an object that
you control that is used elsewhere and has embedded objects of which are not
INOC?
You make the assumption that the developer controls all aspects. In
reality most patterns (Including MVVM) are created because we can not control
all components. For the few, hey great. Code how you want. For the rest of the
world we follow the patterns for easy transition, upgrades, extensions, testing
etc. etc. etc

Collin Jasnoch wrote:

I doubt you have actually implimented a large scale MVVM project. The poster
asked what is the common way to deal with that scenerio (you may want to go back
and look... cause again you did not answer his question. You said he is over
engineering).

Collin Jasnoch wrote:

You stating it is an abuse of technology is like stating OOP should not be used
in simple apps. If you don't understand that, then it is likely you really don't
understand what DI is.

Collin Jasnoch wrote:

First off, your claim here is insane. Do you really think Gates or Balmer
invented those platforms???
Secondly they use them only in 'AUTO GENERATED
CODE'. The purpose is quite obvious (well atleast to most I guess). If I have
some auto generated code that resides in the same file as that which the
developer is modifying I have a high risk of the developer modifying code that
will be overritten when 'AUTO GENERATED' again. Or it is possible the developer
simple breaks the logic because they do not fully understand the logic flow or
meaning of the code. This was why partial classes were created and this is WHEN
they should be used. Not because you want to EXTEND a class. In fact, there is a
thing called Extensions[^].
In any other case you should be refactoring and
making new objects.

Collin Jasnoch wrote:

I did not vote on any of your 'Partial Class' posts. I will inform you I voted
for you comment on IValueConvertor

SledgeHammer01 wrote:

In MVVM, IValueConverter and IMultiValueConverter

are very rarely used because the VM does that work.

 
That is because that statement is completely false.
Maybe in your
applications you have programmed this way, but a small search on google will
show you they deffinately have their place.

Dim intAnswerChoiceID As Integer
    Public Property AnswerChoiceID As Integer
        Get
            Return intAnswerChoiceID
        End Get
        Set(ByVal value As Integer)
            intAnswerChoiceID = value
        End Set
    End Property
    Dim strAnswerChoice As String
    Public Property AnswerChoice As String
        Get
            Return strAnswerChoice
        End Get
        Set(ByVal value As String)
            strAnswerChoice = value
        End Set
    End Property

<DataGrid ItemsSource="{Binding CurrentBoxEmployeePermissions}"
          x:Name="BoxesPageEmployeesGrid"
          AutoGenerateColumns="False" SelectionMode="Extended"
          Style="{DynamicResource MyDataGridStyle}"
          ColumnHeaderStyle="{StaticResource GridHeaderStyle}"
          IsSynchronizedWithCurrentItem="True"
          ColumnWidth="SizeToCells"
          CanUserResizeRows="False"
          SelectionChanged="OnReevaluateAppliedBoxParameters">
    <DataGrid.Columns>
        <DataGridTextColumn x:Name="ColumnEmployeeName"
                            Header="Employee Name"
                            Binding="{Binding EmployeeName}"
                            Width="Auto"
                            MinWidth="180"
                            IsReadOnly="True">
            <DataGridTextColumn.ElementStyle>
                <Style>
                    <Setter Property="TextBlock.FontSize"
                            Value="16" />
                    <Setter Property="TextBlock.FontWeight"
                            Value="Bold" />
                    <Setter Property="TextBlock.TextAlignment"
                            Value="Center" />
                    <Setter Property="TextBlock.VerticalAlignment"
                            Value="Center" />
                </Style>
            </DataGridTextColumn.ElementStyle>
        </DataGridTextColumn>

        <ATC_Admin:AutoCommitCheckBoxColumn Header="System User"
                                ElementStyle="{StaticResource CheckBoxStyle}"
                                EditingElementStyle="{StaticResource CheckBoxStyle}"
                                Width="Auto"
                                  Binding="{Binding SystemUser, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></ATC_Admin:AutoCommitCheckBoxColumn>
        <ATC_Admin:AutoCommitCheckBoxColumn Header="Maintenance"
                                ElementStyle="{StaticResource CheckBoxStyle}"
                                EditingElementStyle="{StaticResource CheckBoxStyle}"
                                Width="Auto"
                                            Binding="{Binding Maintenance, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></ATC_Admin:AutoCommitCheckBoxColumn>
        <ATC_Admin:AutoCommitCheckBoxColumn Header="Administrator"
                                ElementStyle="{StaticResource CheckBoxStyle}"
                                EditingElementStyle="{StaticResource CheckBoxStyle}"
                                Width="Auto"
                                            Binding="{Binding Administrator, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></ATC_Admin:AutoCommitCheckBoxColumn>
         <DataGridTextColumn Header="Applied Permission"
                            Binding="{Binding AppliedPermission}"
                            Width="Auto"
                            MinWidth="180"
                            IsReadOnly="True">
            <DataGridTextColumn.ElementStyle>
                <Style>
                    <Setter Property="TextBlock.FontSize"
                            Value="16" />
                    <Setter Property="TextBlock.FontWeight"
                            Value="Bold" />
                    <Setter Property="TextBlock.TextAlignment"
                            Value="Center" />
                    <Setter Property="TextBlock.VerticalAlignment"
                            Value="Center" />
                </Style>
            </DataGridTextColumn.ElementStyle>
        </DataGridTextColumn>
    </DataGrid.Columns>
</DataGrid>

public class BoxEmployeePermissions : INotifyPropertyChanged
{
    private AdminMediator mMediator;

    public BoxEmployeePermissions(AdminMediator mediator)
    {
        mMediator = mediator;
    }

    /// <summary>
    /// Name of the Employee.
    /// </summary>
    public string EmployeeName
    {
        get { return mEmployeeName; }
        set
        {
            mEmployeeName = value;
            OnPropertyChanged("EmployeeName");
        }
    }
    private string mEmployeeName;

    /// <summary>
    /// Employee's unique ID.
    /// </summary>
    public int EmployeeId
    {
        get { return mEmployeeId; }
        set
        {
            mEmployeeId = value;
            OnPropertyChanged("EmployeeId");
        }
    }
    private int mEmployeeId;

    /// <summary>
    /// Basic system user for this box.
    /// </summary>
    public bool SystemUser
    {
        get { return mSystemUser; }
        set
        {
            mSystemUser = value;
            if (value)
            {
                Maintenance = false;
                Administrator = false;
            }
            OnPropertyChanged("SystemUser");
            mMediator.BoxEventAggregator.GetEvent<ReevaluateAppliedBoxParameters>().Publish(new object());
        }
    }
    private bool mSystemUser;

    /// <summary>
    /// Maintenance level access to the box.
    /// </summary>
    public bool Maintenance
    {
        get { return mMaintenance; }
        set
        {
            mMaintenance = value;
            if (value)
            {
                SystemUser = false;
                Administrator = false;
            }
            OnPropertyChanged("Maintenance");
            mMediator.BoxEventAggregator.GetEvent<ReevaluateAppliedBoxParameters>().Publish(new object());
        }
    }
    private bool mMaintenance;

    /// <summary>
    /// Administrator level access to the box.
    /// </summary>
    public bool Administrator
    {
        get { return mAdministrator; }
        set
        {
            mAdministrator = value;
            if (value)
            {
                SystemUser = false;
                Maintenance = false;
            }
            OnPropertyChanged("Administrator");
            mMediator.BoxEventAggregator.GetEvent<ReevaluateAppliedBoxParameters>().Publish(new object());
        }
    }
    private bool mAdministrator;