CodeViewer: Implement HeaderContent - #640

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Non-nullable field '_timeHourFormat' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

The type 'T' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T' doesn't match 'notnull' constraint.

The type 'T' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'T' doesn't match 'notnull' constraint.

Illegal Attribute 'ChildContent' on 'MudFileUpload' using pattern 'LowerCase' source location '(201,16)-(499,18)' (https://mudblazor.com/features/analyzers)

The variable 'warning' is assigned but its value is never used

Dereference of a possibly null reference.

'MudFileUpload<IBrowserFile>.InputStyle' is obsolete: 'Prefer the InputClass property with CSS https://github.com/MudBlazor/MudBlazor/issues/12047'

Found markup element with unexpected name 'ActivatorContent'. If this is intended to be a component, add a @using directive for its namespace.

Illegal Attribute 'ChildContent' on 'MudFileUpload' using pattern 'LowerCase' source location '(201,16)-(499,18)' (https://mudblazor.com/features/analyzers)

The variable 'warning' is assigned but its value is never used

Dereference of a possibly null reference.

'MudFileUpload<IBrowserFile>.InputStyle' is obsolete: 'Prefer the InputClass property with CSS https://github.com/MudBlazor/MudBlazor/issues/12047'

Found markup element with unexpected name 'ActivatorContent'. If this is intended to be a component, add a @using directive for its namespace.

Illegal Attribute 'ChildContent' on 'MudFileUpload' using pattern 'LowerCase' source location '(201,16)-(499,18)' (https://mudblazor.com/features/analyzers)

The variable 'warning' is assigned but its value is never used

Dereference of a possibly null reference.

'MudFileUpload<IBrowserFile>.InputStyle' is obsolete: 'Prefer the InputClass property with CSS https://github.com/MudBlazor/MudBlazor/issues/12047'