What causes System.ArgumentNullException?

The calling code passed null for a parameter marked as non-nullable.

How to fix System.ArgumentNullException?

Check for null before calling the method. Use the null-coalescing operator (??) to provide defaults. Fix the caller to provide a valid value.

System.ArgumentNullException — System.ArgumentNullException — Argument Is Null | Error Code Encyclopedia | akousa.net

Errori WindowsErrore

ERROR_PATH_NOT_FOUND (3)

ERROR_PATH_NOT_FOUND (3) — Path Not Found

The system cannot find the specified path.

windows

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Errori WindowsErrore

ERROR_BAD_NETPATH (53)

ERROR_BAD_NETPATH (53) — Network Path Not Found

The network path could not be found.

windows

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Errori WindowsFatale

CLOCK_WATCHDOG_TIMEOUT (0x00000101)

CLOCK_WATCHDOG_TIMEOUT (0x00000101) — Clock Watchdog Timeout

A processor core did not respond to a clock interrupt in time.

windows

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Errori WindowsErrore

ERROR_SERVICE_DEPENDENCY_DELETED (1075)

ERROR_SERVICE_DEPENDENCY_DELETED (1075) — Dependency Deleted

A dependency service that should exist has been removed.

windows

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Errori WindowsErrore

System.InvalidOperationException

System.InvalidOperationException — Invalid Operation

The object is not in a valid state for the requested operation.

windows

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Errori WindowsFatale

PAGE_FAULT_IN_NONPAGED_AREA (0x00000050)

PAGE_FAULT_IN_NONPAGED_AREA (0x00000050) — Page Fault in Nonpaged Area

The system tried to access non-paged memory that does not exist.

windows

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System.ArgumentNullException — Argument Is Null

Cause di questo errore

Come correggerlo

Codici di errore correlati

ERROR_PATH_NOT_FOUND (3) — Path Not Found

ERROR_BAD_NETPATH (53) — Network Path Not Found

CLOCK_WATCHDOG_TIMEOUT (0x00000101) — Clock Watchdog Timeout

ERROR_SERVICE_DEPENDENCY_DELETED (1075) — Dependency Deleted

System.InvalidOperationException — Invalid Operation

PAGE_FAULT_IN_NONPAGED_AREA (0x00000050) — Page Fault in Nonpaged Area

System.ArgumentNullException — Argument Is Null

Cause di questo errore

Come correggerlo

Codici di errore correlati

ERROR_PATH_NOT_FOUND (3) — Path Not Found

ERROR_BAD_NETPATH (53) — Network Path Not Found

CLOCK_WATCHDOG_TIMEOUT (0x00000101) — Clock Watchdog Timeout

ERROR_SERVICE_DEPENDENCY_DELETED (1075) — Dependency Deleted

System.InvalidOperationException — Invalid Operation

PAGE_FAULT_IN_NONPAGED_AREA (0x00000050) — Page Fault in Nonpaged Area