INASolver.Solve Method

Perform the network analysis and construct results.

[Visual Basic .NET]
Public Function Solve ( _
    ByVal NAContext As INAContext, _
    ByVal messages As IGPMessages, _
    ByVal TrackCancel As ITrackCancel _
) As Boolean

[C#]
public bool Solve (
    INAContext NAContext,
    IGPMessages messages,
    ITrackCancel TrackCancel
);

[C++]
HRESULT Solve(
  INAContext* NAContext,
  IGPMessages* messages,
  ITrackCancel* TrackCancel,
  VARIANT_BOOL* isPartialSolution
);

[C++]
Parameters
NAContext [in]
  NAContext is a parameter of type INAContext
messages [in]
  messages is a parameter of type IGPMessages
TrackCancel [in]
  TrackCancel is a parameter of type ITrackCancel
isPartialSolution [out, retval]
  isPartialSolution is a parameter of type VARIANT_BOOL

Product Availability

Remarks

Solve performs network analysis based on the solver properties and network locations in the NAContext.

It returns :

• True if a partial solution has been found (e.g., some stops are unreachable but a partial route exists).
• False if the whole solution has been found.

Additionnally, Solve returns informational messages in the GPMessages object. Each GPMessage contains a description and may have an naError code. Message types returned are:

• esriGPMessageTypeError when the solve fails (the analysis problem is incorrectly defined or the problem is unsolvable).
• esriGPMessageTypeWarning when a partial solution is found.
• esriGPMessageTypeAbort when the user aborts the analysis by pressing the ESC key.

See Also