The C# SDK checks if anyForced Decision methods were implemented before making any decisions. If a matching item is found for the requested flag, the C# SDK will return the forced decision immediately (audience conditions andtraffic allocations are ignored) before making normal decisions.

The following describes specific scenarios the C# SDK follows:

Flag-to-Decision

• SDK will look up at the beginning of anydecide call for the given flag. If a matching Flag-to-Decision forced decision is found for the flag, it returns the decision.

Experiment-Rule-to-Decision

• SDK will look up at the beginning of the decision for the given experiment rule (of the flag key). If a matching Experiment-Rule-to-Decision forced decision is found for the flag, it returns the decision.

Delivery-Rule-to-Decision

• SDK will look up at the beginning of the decision for the given delivery rule (of the flag key). If a matching Delivery-Rule-to-Decision forced decision is found, it returns the decision.

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Warning

You must associate your variations to aflag rule before calling any Forced Decision methods.

On forced decisions, the C# SDK will fire impression events and notifications just like other normal decisions (unless disabled by thedisableDecisionEvent option).

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Note

These forced decisions are not persistent and are cleared when theOptimizelyUserContext is re-initialized.

For information about each forced decision method, click on the method name below:

• SetForcedDecision()
• GetForcedDecision
• RemoveForcedDecision
• RemoveAllForcedDecisions

OptimizelyDecisionContext

public class OptimizelyDecisionContext {    public OptimizelyDecisionContext(string flagKey, string? ruleKey = null);      public string FlagKey;      public string RuleKey;}

OptimizelyForcedDecision

public class OptimizelyForcedDecision {    public OptimizelyForcedDecision(string variationKey);        public string VariationKey;}

Set Forced Decision method –SetForcedDecision()

Version

3.11.0

Description

Sets a forced decision (variationKey) for a givenOptimizelyDecisionContext.

Parameters

This table lists the required and optional parameters for the C# SDK.

Returns

A boolean value that indicates if setting the forced decision (variationKey) was completed successfully.

Example

See the full C# SDK example in theFull code example section.

Get Forced Decision method –GetForcedDecision()

Version

3.11.0

Description

Returns the forced decision (variationKey) for a givenOptimizelyDecisionContext. Returns theOptimizelyForcedDecision instance or null if there is no matching item.

Parameters

This table lists the required and optional parameters for the C# SDK.

Returns

A forced decisionOptimizelyForcedDecision instance for the context or null if there is no matching item.

Example

See the full C# SDK example in theFull code example section.

Remove Forced Decision method –RemoveForcedDecision()

Version

3.11.0

Description

Removes the forced decision (variationKey) for a givenOptimizelyDecisionContext.

Parameters

This table lists the required and optional parameters for the C# SDK.

Returns

A success or failure boolean status if the forced decision (variationKey) was removed.

Example

See the full C# SDK example in theFull code example section.

Remove All Forced Decisions method –RemoveAllForcedDecisions()

Version

3.11.0

Description

Removes all forced decisions (variationKey) for the user context.

Parameters

This table lists the required and optional parameters for the C# SDK.

Returns

A success or failure boolean status.

Example

See the full C# SDK example in theFull code example section.

Full code example

An example of how to use the C# methods for managing forced decisions

var Optimizely = OptimizelyFactory.NewDefaultInstance("<your sdk key>");var attributes = new UserAttributes();var user = Optimizely.CreateUserContext(RandomUserId(), attributes);var flagContext = new OptimizelyDecisionContext("flag-1", null);var flagAndABTestContext = new OptimizelyDecisionContext("flag-1", "ab-test-1");var flagAndDeliveryRuleContext = new OptimizelyDecisionContext("flag-1", "delivery-1");var variationAForcedDecision = new OptimizelyForcedDecision("variation-a");var variationBForcedDecision = new OptimizelyForcedDecision("variation-b");var variationOnForcedDecision = new OptimizelyForcedDecision("on");// set a forced decision for a flagvar success = user.SetForcedDecision(flagContext, variationAForcedDecision);var decision = user.Decide("flag-1");// set a forced decision for an ab-test rulesuccess = user.SetForcedDecision(flagAndABTestContext, variationBForcedDecision);decision = user.Decide("flag-1");// set a forced variation for a delivery rulesuccess = user.SetForcedDecision(flagAndDeliveryRuleContext, variationOnForcedDecision);decision = user.Decide("flag-1");// get forced variationsvar forcedDecision = user.GetForcedDecision(flagContext);Console.WriteLine(string.Format("ForcedDecision variationKey = {0}", forcedDecision.VariationKey));// remove forced variationssuccess = user.RemoveForcedDecision(flagAndABTestContext);success = user.RemoveAllForcedDecisions();

See also

OptimizelyUserContext

Updated 18 days ago