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| ArcObjects namespaces > Geoprocessing > ESRI.ArcGIS.Geoprocessing > Constants > E > esriModelDiagramLevelConstraint Constants (ArcObjects .NET 10.4 SDK) | 
Model Diagram Level Constraint.
| Constant | Value | Description | 
|---|---|---|
| esriModelDiagramLevelConstraintNone | 0 | No level constraint. | 
| esriModelDiagramLevelConstraintTowardsInput | 1 | Level constraint towards input. | 
| esriModelDiagramLevelConstraintTowardsOutput | 2 | Level constraint towards output. |