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null-coalescer-values-are-not-visible-in-debugger-until-one-step-later.md

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Null coalescer values are not visible in debugger until one step later

Scope

Edge

Version Introduced

4.5

Version Reverted

4.6

Source Analyzer Status

Not planned

Change Description

A bug in the .NET Framework 4.5 causes values set via a null coalescing operation to not be visible in the debugger immediately after the assignment operation is executed when running on the 64-bit version of the Framework.

  • Quirked
  • Build-time break

Recommended Action

Stepping one additional time in the debugger will cause the local/field's value to be correctly updated. Also, this issue has been fixed in the .NET Framework 4.6; upgrading to that version of the Framework should solve the issue.

Affected APIs

  • Not detectable via API analysis

Category

Debugger

More information