Method SetArgument

SetArgument(int, object)

Sets the value of the ref or out argument at a given index. Replacing an argument value is supported only in some advices and is silently ignored in non-supported scenarios. See Remarks for details.

Declaration

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public virtual void SetArgument(int index, object value)

Parameters

Type	Name	Description
int	index	Argument index.
object	value	New value of the ref or out argument at position `index`.

Remarks

Replacing a parameter value is supported in the following scenarios:

In OnSuccess(MethodExecutionArgs) and OnExit(MethodExecutionArgs) advices, to replace the value of ref and out parameters.
In any interception advice (such as OnInvoke(MethodInterceptionArgs) or OnSetValue(LocationInterceptionArgs)), to set the value passed to the next node in the chain of responsibility, or the value of ref and out parameters.

Setting the value in a different situation is unsupported and has unspecified behavior.

Exceptions

Type	Condition
InvalidCastException	`value` is not assignable to parameter at position `index`.
ArgumentOutOfRangeException	`index` is lower than zero or greater or equal than Count.