ReportExpression 结构

2013-04-26

Represents a report expression.

命名空间： Microsoft.ReportingServices.RdlObjectModel
程序集： Microsoft.ReportingServices.Designer.Controls（在 Microsoft.ReportingServices.Designer.Controls.dll 中）

语法

声明
Public Structure ReportExpression _
    Implements IExpression, IXmlSerializable, IFormattable
用法
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 支持使用结构，但不支持声明新结构。

ReportExpression 类型公开以下成员。

构造函数

	名称	说明
	ReportExpression(Boolean)	基础结构。Initializes a new instance of the ReportExpression class.
	ReportExpression(DateTime)	基础结构。Initializes a new instance of the ReportExpression class.
	ReportExpression(Double)	基础结构。Initializes a new instance of the ReportExpression class.
	ReportExpression(Int32)	基础结构。Initializes a new instance of the ReportExpression class.
	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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属性

	名称	说明
	DataType	Gets or sets the data type of the evaluated expression.
	Empty	基础结构。Gets the empty report expression object.
	EvaluationMode	Gets or sets the evaluation mode for the report expression.
	Expression	Gets or sets the expression string.
	IsEmpty	基础结构。Gets whether the report expression is empty.
	IsExpression	Gets a value that indicates whether this is an expression.
	Value	Gets or sets the value of the expression.

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方法

	名称	说明
	BuildFieldReference(String)	基础结构。Builds a reference to the field.
	BuildFieldReference(String, String)	基础结构。Builds a reference to the field.
	BuildFunctionCall	基础结构。Builds a function call expression.
	BuildGlobalReference	基础结构。Builds a global reference expression.
	BuildNullValue	基础结构。Builds a null value expression.
	BuildParameterReference(String)	基础结构。Builds a parameter reference.
	BuildParameterReference(String, String)	基础结构。Builds a parameter reference.
	BuildStringLiteral	基础结构。Builds a string literal expression.
	BuildUserReference	基础结构。Builds a user reference expression.
	Equals	Tests the equality of the current instance with another expression. （覆盖 ValueType.Equals(Object)。）
	GetDependencies	Gets dependencies from the parent object.
	GetFieldReference	基础结构。Gets a field reference for the expression.
	GetHashCode	Gets a unique hash code for the current instance. （覆盖 ValueType.GetHashCode()。）
	GetType	（从 Object 继承。）
	IsAggregateExpression	基础结构。Specifies whether the report expression is an aggregate expression.
	IsExpressionString	Indicates whether a string is an expression.
	ToString()	Converts the current ReportExpression instance to a string. （覆盖 ValueType.ToString()。）
	ToString(String, IFormatProvider)	Converts the current ReportExpression instance to a string.

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运算符

	名称	说明
	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.

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显式接口实现

	名称	说明
	IXmlSerializable.GetSchema	Returns the xml schema.
	IXmlSerializable.ReadXml	Reads xml documentation.
	IXmlSerializable.WriteXml	Writes xml documentation.
	IExpression.Value	Gets or sets the expression value.