# OSGeo::FDO::Expression::Parameter Class Reference
[OSGeo::FDO::Expression]

Inheritance diagram for OSGeo::FDO::Expression::Parameter:

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List of all members.

## Detailed Description

The Parameter class derives from ValueExpression and represents a substitution parameter in the expression. Parameters are represented by a name: when expressions are evaluated, the caller must supply a value to be bound to each parameter name.

()

Remarks:
  For information on how to set the value of a parameter, see the ICommand interface and ParameterValue.

## Public Member Functions
__property System::String * | get_Name ()
| Gets the name of the parameter.
| Parameter (System::IntPtr unmanaged, System::Boolean autoDelete)
| Constructs a Parameter object based on an unmanaged instance of the object.
| Parameter (System::String *name)
| Constructs an instance of a parameter using the specified arguments.
| Parameter ()
| Constructs a default instance of a parameter.
System::Void | Process (OSGeo::FDO::Expression::IExpressionProcessor *processor)
| Overrides Expression.Process to pass the Parameter to the appropriate expression processor operation.
__property System::Void | set_Name (System::String *value)
| Sets the name of the parameter.
System::String * | ToString ()
| Returns the well defined text representation of this expression.