Forced Decision methods for the C# SDK
These methods help test and debug various flows of your client applications by forcing users into a specific variation.
The C# SDK checks if any Forced Decision methods were implemented before making any decisions. If a matching item is found for the requested flag, the C# SDK returns the forced decision immediately (audience conditions and traffic allocations are ignored) before making normal decisions.
The C# SDK checks for forced decisions at the start of each decision process. If a matching forced decision is found, it returns the decision immediately.
- Flag-to-Decision – The SDK checks at the start of any decide call for the given flag.
- Experiment-Rule-to-Decision – The SDK checks at the start of the decision for the given experiment rule of the flag key.
- Delivery-Rule-to-Decision – The SDK checks at the start of the decision for the given delivery rule of the flag key.
Warning You must associate your variations to a flag rule before calling any Forced Decision methods.
On forced decisions, the C# SDK fires impression events and notifications just like other normal decisions (unless disabled by the disableDecisionEvent option).
Note These forced decisions are not persistent and are cleared when the OptimizelyUserContext is re-initialized.
For information about each forced decision method, click on the method name.
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 given OptimizelyDecisionContext.
Parameters
The following table lists the required and optional parameters for the C# SDK.
Parameter | Type | Description |
|---|---|---|
context *required* | Class | An instance of `OptimizelyDecisionContext` with the required `flagKey` and optional `ruleKey` for the forced decision you want to set. |
decision\ *required* | Class | An instance of `OptimizelyForcedDecision` with the required `variationKey` for the forced decision you want to set. |
Returns
A boolean value that indicates if setting the forced decision (variationKey) was completed.
Example
See the full C# SDK example in the Full code example section.
Get Forced Decision method – GetForcedDecision()
Version
3.11.0
Description
Returns the forced decision (variationKey) for a given OptimizelyDecisionContext. Returns the OptimizelyForcedDecision instance or null if there is no matching item.
Parameters
The following table lists the required and optional parameters for the C# SDK.
Parameter | Type | Description |
|---|---|---|
context *required* | Class | An instance of `OptimizelyDecisionContext` with the required `flagKey` and optional `ruleKey` for the forced decision you want to get. |
Returns
A forced decision OptimizelyForcedDecision instance for the context or null if there is no matching item.
Example
See the full C# SDK example in the Full code example section.
Remove Forced Decision method – RemoveForcedDecision()
Version
3.11.0
Description
Removes the forced decision (variationKey) for a given OptimizelyDecisionContext.
Parameters
This table lists the required and optional parameters for the C# SDK.
Parameter | Type | Description |
|---|---|---|
context *required* | Class | An instance of `OptimizelyDecisionContext` with the required `flagKey` and optional `ruleKey` for the forced decision you want to remove. |
Returns
A success or failure boolean status if the forced decision (variationKey) was removed.
Example
See the full C# SDK example in the Full 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.
Parameters | Type | Description |
|---|---|---|
None | N/A | N/A |
Returns
A success or failure boolean status.
Example
See the full C# SDK example in the Full 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 flag
var success = user.SetForcedDecision(flagContext, variationAForcedDecision);
var decision = user.Decide("flag-1");
// set a forced decision for an ab-test rule
success = user.SetForcedDecision(flagAndABTestContext, variationBForcedDecision);
decision = user.Decide("flag-1");
// set a forced variation for a delivery rule
success = user.SetForcedDecision(flagAndDeliveryRuleContext, variationOnForcedDecision);
decision = user.Decide("flag-1");
// get forced variations
var forcedDecision = user.GetForcedDecision(flagContext);
Console.WriteLine(string.Format("ForcedDecision variationKey = {0}", forcedDecision.VariationKey));
// remove forced variations
success = user.RemoveForcedDecision(flagAndABTestContext);
success = user.RemoveAllForcedDecisions();