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Editorial Team
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Asked: 2026-05-30T22:23:29+00:00

I use C#, MVVM, WPF and Resharper. When using the following code: public bool

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I use C#, MVVM, WPF and Resharper.

When using the following code:

    public bool CombiBanksSelected
    {
        get { return _selectedBanksType == ESelectedBanksType.CombiBanks; }
        set
        {

I get a warning of Resharper: Make set accessor private.

When making the set method private, I get an InvalidOperationException: A TwoWay or OneWayToSource binding cannot work on the read-only property ”CombiBanksSelected” of type ”PcgTools.ViewModels.PcgViewModel.’

Of course I can suppress it by adding:

    public bool CombiBanksSelected
    {
        get { return _selectedBanksType == ESelectedBanksType.CombiBanks; }
// ReSharper disable MemberCanBePrivate.Global
        set
// ReSharper restore MemberCanBePrivate.Global
        {

But this is not looking nice and not feeling good. Is there a better alternative or solution for this problem?

According to the answer I should change the XAML code. Mine is:

<UserControl x:Class="PcgTools.PcgWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:ViewModels="clr-namespace:PcgTools.ViewModels" Height="Auto" Width="Auto" 
    Loaded="Window_Loaded">

<Grid>
  ...
    <RadioButton Content="_Programs" Height="16" HorizontalAlignment="Left" Margin="12,12,0,0" Name="radioButtonPrograms" VerticalAlignment="Top" 
                 IsChecked="{Binding Path=ProgramBanksSelected}" IsEnabled="{Binding Path=ProgramsEnabled}"/>
    <RadioButton Content="_Combis" Height="16" HorizontalAlignment="Left" Margin="85,12,0,0" Name="radioButtonCombis" VerticalAlignment="Top" 
                 IsChecked="{Binding Path=CombiBanksSelected}"  IsEnabled="{Binding Path=CombisEnabled}"/>

I have the Resharper problem for both (and more) properties binded to IsChecked (ProgramBanksSelected and CombiBanksSelected in the code above).

In the answer is shown that I should use a DataTemplate, but I still can’t figure out how exactly (with not using MVVM light’s Locator).

How should I use the data context/template?

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1 Answer

  1. Editorial Team

    In addition to Phil’s excellent suggestions, you can also use the UsedImplicitlyAttribute. You can use Nuget to do add the dll for you

    enter image description here

    And then R# will itself offer to decorate the setter with the attribute:

    public bool CombiBanksSelected
{
    get { return _selectedBanksType == ESelectedBanksType.CombiBanks; }
    [UsedImplicitly] set
    {

    I find it less noisy than a comment, and well suited to a ViewModel where it’s understood that data bindings are typically unknown to R#. (sometimes I actually prefer a comment to remind me why I wanted R# to shut up, but not in this case).

    Cheers,
    Berryl

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