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ActivityMetadata.AddVariable Method (Variable)

Adds the specified variable to the metadata’s collection of variables.

Namespace:  System.Activities
Assembly:  System.Activities (in System.Activities.dll)

public void AddVariable(
	Variable variable
)

Parameters

variable
Type: System.Activities.Variable

The variable to add.

Variables added using this method are considered part of the activity’s publicly configurable surface, that is, they are to be provided by the consumer of the activity. For example, Sequence adds the variables in its Variables collection using this method. An activity’s implementation cannot access variables added using this method. Activities added through AddImportedChild (and any of their non-implementation child activities) can access variables added using this method. For example, Sequence adds its Activities collection in this manner.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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