Is ThemeManager Broken in version 7? MissingMethodException: Method not found: 'MudBlazor.Palette MudBlazor.MudTheme.get_Palette()'.

[aarondglover]

I'm using

• MudBlazor v7 preview 4
• MudBlazor.ThemeManager1.1.0

When running my application I recieve the following exception.

MissingMethodException: Method not found: 'MudBlazor.Palette MudBlazor.MudTheme.get_Palette()'.

Question
Is this a problem with version 7 where they changed "Palette" to "LightPallet" to match the "DarkPallet" naming scheme?

Thanks In Advance

[ScarletKuro]

Hi. Yes, it's obviously not supported for now as many things changed, ThemeManager is referencing v6, not v7. The update will happen probably after v7 release.

[aarondglover]

Yep forked it and kind of got it working. Just an issue to resolve regarding MudColor and conversion to hexStr... The RGBA colors etc... is some refactoring since the Palette class was made abstract.

Nice work.

[ScarletKuro]

Yep forked it and kind of got it working. Just an issue to resolve regarding MudColor and conversion to hexStr... The RGBA colors etc... is some refactoring since the Palette class was made abstract.

Maybe you want to PR your changes? Since we need that anyway.

[Eagle3386]

@ScarletKuro Did you find the time to work on this, yet?
Because ce5ceec's commit message, Add MudBlazor v7 support suggests that it works while in reality, it gives:

Microsoft.AspNetCore.Components.WebAssembly.Rendering.WebAssemblyRenderer[100]
    Unhandled exception rendering component: Method not found: MudBlazor.Palette MudBlazor.MudTheme.get_Palette()
System.MissingMethodException: Method not found: MudBlazor.Palette MudBlazor.MudTheme.get_Palette()
    at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
    at Microsoft.AspNetCore.Components.ErrorBoundaryBase.Microsoft.AspNetCore.Components.IErrorBoundary.HandleException(Exception exception)
    at Microsoft.AspNetCore.Components.RenderTree.Renderer.HandleExceptionViaErrorBoundary(Exception error, ComponentState errorSourceOrNull)

… and that's while I'm on latest .NET 8.0.8 & MudBlazor 7.7.0! 😞

[ScarletKuro]

@Eagle3386 Did you update ThemeManager to 2.0.0?

[Eagle3386]

Of course! 😎

[ScarletKuro]

Of course! 😎

Can you upload the project? I tested, and the test app from this repo is working just fine with the 7.7.0 mud. If there was method missing, it wouldn't compile.

[Eagle3386]

I can't due to IP of the source code.
It only happens when I enable these 2 lines within my MainLayout.razor file:

<MudThemeManagerButton OnClick="_ => OpenThemeManager(true)" />
<MudThemeManager Open="IsThemeManagerOpen" OpenChanged="OpenThemeManager" Theme="ThemeManager" ThemeChanged="UpdateTheme" />

At the top, there's of course

<MudThemeProvider @ref="ThemeProvider" Theme="ThemeManager.Theme" @bind-IsDarkMode="IsThemeDarkMode" />

and the code for the mentioned methods looks like this:

protected override async Task OnAfterRenderAsync(bool isFirstRender)
{
  if (isFirstRender)
  {
    await Task.WhenAll(OnIsDarkModeChangedAsync(null), ThemeProvider.WatchSystemPreference(OnPreferenceChangedAsync));
  }

  await base.OnAfterRenderAsync(isFirstRender);
}

/// … left out for brevity

private static MudTheme Theme { get; } = new()
{
  LayoutProperties = new() { DefaultBorderRadius = "6px" },
  PaletteLight = new()
  {
    AppbarBackground      = new("…"),
    Primary               = new("…"),
    Secondary             = new("…"),
    SecondaryContrastText = new("…"),
    Tertiary              = new("…"),
    TextSecondary         = new("…")
  },
  ZIndex = new() { Popover = new ZIndex().AppBar + 1 } // Workaround until MudBlazor/#6909 is fixed
};

private static ThemeManagerTheme ThemeManager { get; set; } = new()
{
  AppBarElevation     = 5,
  DefaultBorderRadius = int.Parse(Theme.LayoutProperties.DefaultBorderRadius[..^2]),
  DrawerClipMode      = DrawerClipMode.Always,
  DrawerElevation     = 5,
  Theme = Theme
};

private static MudThemeProvider ThemeProvider { get; set; }

private async Task OnIsDarkModeChangedAsync(bool? newValue) =>
  await OnPreferenceChangedAsync((IsDarkMode = newValue) ?? await ThemeProvider!.GetSystemPreference());

private Task OnPreferenceChangedAsync(bool newValue)
{
  IsThemeDarkMode = newValue;

  return InvokeAsync(StateHasChanged);
}

private static Task<bool> OpenThemeManager(bool isOpen) => Task.FromResult(IsThemeManagerOpen = isOpen);

private Task UpdateTheme(ThemeManagerTheme theme)
{
  ThemeManager = theme;

  return InvokeAsync(StateHasChanged);
}

[ScarletKuro]

I can't due to IP of the source code.

Make a small reproduction from what you got, otherwise can't help you or fix it if there is a problem indeed.

[Eagle3386]

I actually supposed - given my snippets above - you're able to create it yourself, but meanwhile found out that the problem must lay somewhere else as it even works with my original MainLayout now.

Besides, after having a hard time & multiple headaches, I finally found the culprit: for some reason, VS didn't really rebuild the solution after upgrading both MudBlazor packages.
Only after Clean Solution & then (re) building the solution, everything worked as expected - even with my previously "faulty" code.. 🙈😅

[Eagle3386]

Have to add: while in Debug builds everything runs just fine, I do get an exception that sounds like what @aarondglover mentioned earlier:

System.NotSupportedException: ConstructorContainsNullParameterNames, MudBlazor.Utilities.MudColor
  at System.Text.Json.ThrowHelper.ThrowNotSupportedException_ConstructorContainsNullParameterNames(Type )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.PopulateParameterInfoValues(JsonTypeInfo )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.CreateTypeInfoCore(Type , JsonConverter , JsonSerializerOptions )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.CreateJsonTypeInfo(Type , JsonSerializerOptions )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.GetTypeInfo(Type , JsonSerializerOptions )
  at System.Text.Json.JsonSerializerOptions.GetTypeInfoNoCaching(Type )
  at System.Text.Json.JsonSerializerOptions.CachingContext.CreateCacheEntry(Type type, CachingContext context)
--- End of stack trace from previous location ---
at System.Text.Json.JsonSerializerOptions.CachingContext.CacheEntry.GetResult()
at System.Text.Json.JsonSerializerOptions.CachingContext.GetOrAddTypeInfo(Type , Boolean )
at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , Boolean , Nullable`1 , Boolean , Boolean )
at System.Text.Json.Serialization.Metadata.JsonPropertyInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.ConfigureProperties()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.<EnsureConfigured>g__ConfigureSynchronized|172_0()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.EnsureConfigured()
at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , Boolean , Nullable`1 , Boolean , Boolean )
at System.Text.Json.Serialization.Metadata.JsonPropertyInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.ConfigureProperties()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.<EnsureConfigured>g__ConfigureSynchronized|172_0()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.EnsureConfigured()
at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , Boolean , Nullable`1 , Boolean , Boolean )
at System.Text.Json.JsonSerializerOptions.GetTypeInfoForRootType(Type , Boolean )
at System.Text.Json.JsonSerializer.GetTypeInfo(JsonSerializerOptions , Type )
at System.Text.Json.JsonSerializer.GetTypeInfo[MudTheme](JsonSerializerOptions )
at System.Text.Json.JsonSerializer.Serialize[MudTheme](MudTheme , JsonSerializerOptions )
at MudBlazor.ThemeManager.Extensions.Extension.DeepClone[MudTheme](MudTheme )
at MudBlazor.ThemeManager.MudThemeManager.OnInitialized()
at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
at MudBlazor.State.ParameterContainer.SetParametersAsync(Func`2 , ParameterView )

System.NotSupportedException: ConstructorContainsNullParameterNames, MudBlazor.Utilities.MudColor
  at System.Text.Json.ThrowHelper.ThrowNotSupportedException_ConstructorContainsNullParameterNames(Type )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.PopulateParameterInfoValues(JsonTypeInfo )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.CreateTypeInfoCore(Type , JsonConverter , JsonSerializerOptions )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.CreateJsonTypeInfo(Type , JsonSerializerOptions )
  at System.Text.Json.Serialization.Metadata.DefaultJsonTypeInfoResolver.GetTypeInfo(Type , JsonSerializerOptions )
  at System.Text.Json.JsonSerializerOptions.GetTypeInfoNoCaching(Type )
  at System.Text.Json.JsonSerializerOptions.CachingContext.CreateCacheEntry(Type type, CachingContext context)
--- End of stack trace from previous location ---
at System.Text.Json.JsonSerializerOptions.CachingContext.CacheEntry.GetResult()
at System.Text.Json.JsonSerializerOptions.CachingContext.GetOrAddTypeInfo(Type , Boolean )
at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , Boolean , Nullable`1 , Boolean , Boolean )
at System.Text.Json.Serialization.Metadata.JsonPropertyInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.ConfigureProperties()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.<EnsureConfigured>g__ConfigureSynchronized|172_0()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.EnsureConfigured()
at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , Boolean , Nullable`1 , Boolean , Boolean )
at System.Text.Json.Serialization.Metadata.JsonPropertyInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.ConfigureProperties()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.Configure()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.<EnsureConfigured>g__ConfigureSynchronized|172_0()
at System.Text.Json.Serialization.Metadata.JsonTypeInfo.EnsureConfigured()
at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type , Boolean , Nullable`1 , Boolean , Boolean )
at System.Text.Json.JsonSerializerOptions.GetTypeInfoForRootType(Type , Boolean )
at System.Text.Json.JsonSerializer.GetTypeInfo(JsonSerializerOptions , Type )
at System.Text.Json.JsonSerializer.GetTypeInfo[MudTheme](JsonSerializerOptions )
at System.Text.Json.JsonSerializer.Serialize[MudTheme](MudTheme , JsonSerializerOptions )
at MudBlazor.ThemeManager.Extensions.Extension.DeepClone[MudTheme](MudTheme )
at MudBlazor.ThemeManager.MudThemeManager.OnInitialized()
at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
at MudBlazor.State.ParameterContainer.SetParametersAsync(Func`2 , ParameterView ) 

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[ScarletKuro]

I do get an exception that sounds like what @aarondglover mentioned earlier:

This is totally two different unrelated exceptions.
I would try to disable trimming dotnet/aspnetcore#52947

[Eagle3386]

But I neither publish with enabled AOT nor did I enable trimming within my Blazor WASM project file nor the Directory.Build.props one:

<!--<PublishTrimmed>true</PublishTrimmed>
<PublishAot>false</PublishAot>

🤷🏻‍♂️🤔

[ScarletKuro]

But I neither publish with enabled AOT nor did I enable trimming within my Blazor WASM project file nor the Directory.Build.props one:

Trimming is the default behavior starting from net8.