ReportParameter 类

Represents a report parameter.

继承层次结构

System. . :: . .Object
  ReportExecution2005..::..ReportParameter

命名空间：  ReportExecution2005
程序集：  ReportExecution2005（在 ReportExecution2005.dll 中）

语法

声明
<SerializableAttribute> _
Public Class ReportParameter
用法
Dim instance As ReportParameter

[SerializableAttribute]
public class ReportParameter

[SerializableAttribute]
public ref class ReportParameter

[<SerializableAttribute>]
type ReportParameter =  class end

public class ReportParameter

ReportParameter 类型公开以下成员。

构造函数

	名称	说明
	ReportParameter	Initializes a new instance of the ReportParameter class.

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属性

	名称	说明
	AllowBlank	Indicates whether an empty string is a valid value for the parameter. Read-only.
	AllowBlankSpecified	Indicates that the AllowBlank property has been specified.
	DefaultValues	Gets or sets the default values of the parameter.
	DefaultValuesQueryBased	Indicates whether the default values of the parameter are based on a query. Boolean. Read-only.
	DefaultValuesQueryBasedSpecified	Indicates whether the DefaultValuesQueryBased property has been specified.
	Dependencies	Gets or sets a list of parameters whose values are used to retrieve additional parameter values in a query.
	ErrorMessage	An error message, returned when the parameter has failed validation.
	MultiValue	Indicates whether the parameter can be a multivalue parameter.
	MultiValueSpecified	Indicates whether the MultiValue property has been specified.
	Name	Gets or sets the name of the parameter.
	Nullable	Indicates whether the value of the parameter can be nullNothingnullptrunitnull 引用（在 Visual Basic 中为 Nothing）.
	NullableSpecified	Indicates whether the Nullable property has been specified.
	Prompt	Gets or sets the text that prompts the user to provide parameter values.
	PromptUser	Indicates whether the user is prompted for the value of the parameter.
	PromptUserSpecified	Indicates whether a value for the PromptUser property is specified.
	QueryParameter	Indicates whether the parameter is used in a query to an external data source.
	QueryParameterSpecified	Indicates whether the ReportParameter property has been specified.
	State	Describes the state (ParameterStateEnum) of the parameter.
	StateSpecified	Indicates whether the State property has been specified.
	Type	The data type (ParameterTypeEnum) of the parameter.
	TypeSpecified	Indicates whether the Type property has been specified.
	ValidValues	The available valid values for the parameter. Read-only.
	ValidValuesQueryBased	Indicates whether the parameter's valid values are based on a query. Read-only.
	ValidValuesQueryBasedSpecified	Indicates whether the ValidValuesQueryBased property has been specified.

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方法

	名称	说明
	Equals	（从 Object 继承。）
	Finalize	（从 Object 继承。）
	GetHashCode	（从 Object 继承。）
	GetType	（从 Object 继承。）
	MemberwiseClone	（从 Object 继承。）
	ToString	（从 Object 继承。）

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注释

A ReportParameter object is returned as output by the GetReportParameters method and is passed as input to the SetReportParameters method.

The value of the ReportParameter may change if the user calls SetReportDefinition.

线程安全

此类型的任何公共 static（在 Visual Basic 中为 Shared） 成员都是线程安全的。不保证所有实例成员都是线程安全的。

请参阅

参考

ReportExecution2005 命名空间

其他资源

设置已发布报表的参数属性