Description

When declaring a private field in a razor.cs file, and bind it by ref in the related razor file, sonar marks it as not assigned. Sonar should check the related razor file for S3459 as well.

Repro steps

Create a Blazor component with two files:

MyBlazorComponent.razor

<Modal @ref="@_myModalRef">
</Modal>

MyBlazorComponent.razor.cs

public partial class MyBlazorComponent
{
  private Modal _myModalRef; // Sonar marks this field as not assigned
}

Expected behavior

Recognize that the field actually is being assigned by ref in razor file.

Actual behavior

Mark every occurrence as false positive, or disable rule csharpsquid:S3459 for **/*.razor.cs completely.

Probably not using code in separate *razor.cs file but declare the private field in the razor file itself. Did not test that.

Known workarounds

Please provide a description of any known workarounds.

Related information

• C# 12
• Rider 2023.3.2
• .Net 8
• SonarLint plugin 10.2.1.77304 connected to SonarCloud
• Windows 11