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DB_E_INVALIDTRANSITION
Meaning
Windows documents DB_E_INVALIDTRANSITION as “Transition from ALL* to MOVE* or EXTEND* was specified”. Here, a watch-region transition attempts to change an ALL-style region directly to a MOVE or EXTEND style that the OLE DB view contract forbids.
Evidence to collect before changing the system
- Evidence 1: the current and requested transition values.
- Evidence 2: the region handle and prior successful operation.
- Evidence 3: thread and event ordering for region modifications.
Relevant OLE DB contract
This result must be interpreted against this contract: OLE DB views and find operations derive row ranges from an accessor, comparison operators, current ordering and region state; handles and containment relationships become stale when the view, filter or rowset generation changes.
Start with the active rowset view, its criteria accessor and the region or row sequence supplied by the consumer when investigating this result.
Specific conditions that produce it
- Cause 1: the caller applies a transition flag incompatible with the current region mode.
- Cause 2: state tracking lost the region's previous transition type.
- Cause 3: concurrent UI operations reorder region updates.
Corrective actions
- Action 1: model region transitions as an explicit state machine.
- Action 2: reset or recreate the region before changing transition families.
- Action 3: serialize updates to one region handle.
Practical incident
A selection model treats an ALL region like an ordinary range and extends it with MOVE semantics; resetting the region first avoids it.
Retry and recovery policy
Retry rule: retry after moving through a documented transition or recreating the region.
Difference from related HRESULT values
DB_E_BADREGIONHANDLE rejects an invalid handle, while DB_E_INVALIDTRANSITION rejects a disallowed state change on an otherwise valid region.
Official Microsoft references
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