Článek
05/23/2011

ReportExpression Structure

Represents a report expression.

Namespace: Microsoft.ReportingServices.RdlObjectModel
Assembly: Microsoft.ReportingServices.Designer.Controls (in Microsoft.ReportingServices.Designer.Controls.dll)

Syntax

'Declaration
Public Structure ReportExpression _
    Implements IExpression, IXmlSerializable, IFormattable
'Usage
Dim instance As ReportExpression

public struct ReportExpression : IExpression, 
    IXmlSerializable, IFormattable

public value class ReportExpression : IExpression, 
    IXmlSerializable, IFormattable

[<SealedAttribute>]
type ReportExpression =  
    struct
        interface IExpression
        interface IXmlSerializable
        interface IFormattable
    end

JScript suports the use of structures, but not the declaration of new ones.

The ReportExpression type exposes the following members.

Constructors

	Name	Description
	ReportExpression(Boolean)	Infrastructure.
	ReportExpression(DateTime)	Infrastructure.
	ReportExpression(Double)
	ReportExpression(Int32)	Infrastructure.
	ReportExpression(String)	Initializes a new instance of the ReportExpression class.
	ReportExpression(String, EvaluationMode)	Initializes a new instance of the ReportExpression class.

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Properties

	Name	Description
	DataType	The data type of the evaluated expression.
	Empty	Infrastructure.
	EvaluationMode	The evaluation mode.
	Expression	The expression string.
	IsEmpty	Infrastructure.
	IsExpression	Indicates whether this is an expression.
	Value	The value of the expression.

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Methods

	Name	Description
	BuildFieldReference(String)	Infrastructure.
	BuildFieldReference(String, String)	Infrastructure.
	BuildFunctionCall	Infrastructure.
	BuildGlobalReference	Infrastructure.
	BuildNullValue
	BuildParameterReference(String)	Infrastructure.
	BuildParameterReference(String, String)	Infrastructure.
	BuildStringLiteral
	BuildUserReference	Infrastructure.
	Equals	Tests the equality of the current instance with another expression. (Overrides ValueType.Equals(Object).)
	Finalize	(Inherited from Object.)
	GetDependencies
	GetFieldReference	Infrastructure.
	GetHashCode	Gets a unique hash code for the current instance. (Overrides ValueType.GetHashCode().)
	GetType	(Inherited from Object.)
	IsAggregateExpression	Infrastructure.
	IsExpressionString	Indicates whether a string is an expression.
	MemberwiseClone	(Inherited from Object.)
	ToString()	Converts the current ReportExpression instance to a string. (Overrides ValueType.ToString().)
	ToString(String, IFormatProvider)	Converts the current ReportExpression instance to a string.

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Operators

	Name	Description
	Equality(String, ReportExpression)	Tests the equality of two expressions.
	Equality(ReportExpression, ReportExpression)	Tests the equality of two expressions.
	Equality(ReportExpression, String)	Tests the equality of two expressions.
	Explicit(ReportExpression to String)	Converts a ReportExpression object to an expression string.
	Implicit(String to ReportExpression)	Converts an expression string to a ReportExpression object.
	Inequality(String, ReportExpression)	Tests the inequality of two expressions.
	Inequality(ReportExpression, ReportExpression)	Tests the inequality of two expressions.
	Inequality(ReportExpression, String)	Tests the inequality of two expressions.