ReportExpression(T) 结构

Represents an expression in the report.

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(Of T As {Structure, New}) _
    Implements IExpression, IXmlSerializable, IFormattable
用法
Dim instance As ReportExpression(Of T)

public struct ReportExpression<T> : IExpression, 
    IXmlSerializable, IFormattable
where T : struct, new()

generic<typename T>
where T : value class, gcnew()
public value class ReportExpression : IExpression, 
    IXmlSerializable, IFormattable

[<SealedAttribute>]
type ReportExpression<'T when 'T : struct, new()> =  
    struct
        interface IExpression
        interface IXmlSerializable
        interface IFormattable
    end

JScript 不支持一般类型和方法。

类型参数

ReportExpression<(Of <(<'T>)>)> 类型公开以下成员。

构造函数

	名称	说明
	ReportExpression< (Of < ( <'T> ) > ) >(String)	Initializes a new instance of the ReportExpression<(Of <(<'T>)>)> class.
	ReportExpression< (Of < ( <'T> ) > ) >(T)	Initializes a new instance of the ReportExpression<(Of <(<'T>)>)> class.
	ReportExpression< (Of < ( <'T> ) > ) >(String, IFormatProvider)	Initializes a new instance of the ReportExpression<(Of <(<'T>)>)> class.

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属性

	名称	说明
	Expression	The expression value.
	IsEmpty	Indicates whether the expression object is empty.
	IsExpression	Whether this is an expression.
	Value	The calculated value.

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方法

	名称	说明
	Equals	Tests the equality of the Value property with another object. （覆盖 ValueType. . :: . .Equals(Object)。）
	Finalize	（从 Object 继承。）
	GetHashCode	Gets a unique hash code for this instance. （覆盖 ValueType. . :: . .GetHashCode() () () ()。）
	GetType	（从 Object 继承。）
	MemberwiseClone	（从 Object 继承。）
	Parse	Parses a string value into a ReportExpression<(Of <(<'T>)>)> object.
	ToString() () () ()	Converts the current ReportExpression<(Of <(<'T>)>)> object to a string. （覆盖 ValueType. . :: . .ToString() () () ()。）
	ToString(String, IFormatProvider)	Converts the current ReportExpression<(Of <(<'T>)>)> object to a string.

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运算符

	名称	说明
	Equality(String, ReportExpression< (Of < <' (T> ) > > ))	Tests the equality between an expression and a ReportExpression<(Of <(<'T>)>)> object.
	Equality(T, ReportExpression< (Of < <' (T> ) > > ))	Tests the equality between an object and a ReportExpression<(Of <(<'T>)>)> object.
	Equality(ReportExpression< (Of < <' (T> ) > > ), ReportExpression< (Of < <' (T> ) > > ))	Tests the equality between two ReportExpression<(Of <(<'T>)>)> objects.
	Equality(ReportExpression< (Of < <' (T> ) > > ), String)	Tests the equality between an expression and a ReportExpression<(Of <(<'T>)>)> object.
	Equality(ReportExpression< (Of < <' (T> ) > > ), T)	Tests the equality between an object and a ReportExpression<(Of <(<'T>)>)> object.
	Explicit Narrowing Explicit Explicit Explicit(ReportExpression< (Of < <' (T> ) > > ) to T)	Converts the value of a ReportExpression<(Of <(<'T>)>)> to an object of type T.
	Explicit Narrowing Explicit Explicit Explicit(ReportExpression< (Of < <' (T> ) > > ) to String)	Converts the value of a ReportExpression<(Of <(<'T>)>)> to a string.
	Implicit Widening Implicit Implicit Implicit(Nullable< (Of < <' (T> ) > > ) to ReportExpression< (Of < <' (T> ) > > ))	Converts a Nullable<(Of <(<'T>)>)> object to a ReportExpression<(Of <(<'T>)>)>.
	Implicit Widening Implicit Implicit Implicit(T to ReportExpression< (Of < <' (T> ) > > ))	Converts an object of type T to a ReportExpression<(Of <(<'T>)>)>.
	Inequality(String, ReportExpression< (Of < <' (T> ) > > ))	Tests the inequality between an expression and a ReportExpression<(Of <(<'T>)>)> object.
	Inequality(T, ReportExpression< (Of < <' (T> ) > > ))	Tests the inequality between an object of type T and a ReportExpression<(Of <(<'T>)>)> object.
	Inequality(ReportExpression< (Of < <' (T> ) > > ), ReportExpression< (Of < <' (T> ) > > ))	Tests the inequality between two ReportExpression<(Of <(<'T>)>)> objects.
	Inequality(ReportExpression< (Of < <' (T> ) > > ), String)	Tests the inequality between an expression and a ReportExpression<(Of <(<'T>)>)> object.
	Inequality(ReportExpression< (Of < <' (T> ) > > ), T)	Tests the inequality between an object of type T and a ReportExpression<(Of <(<'T>)>)> object.