Класс ReportParameter
Represents a report parameter.
Иерархия наследования
System. . :: . .Object
ReportExecution2005..::..ReportParameter
Пространство имен: ReportExecution2005
Сборка: ReportExecution2005 (в ReportExecution2005.dll)
Синтаксис
'Декларация
<SerializableAttribute> _
Public Class ReportParameter
'Применение
Dim instance As ReportParameter
[SerializableAttribute]
public class ReportParameter
[SerializableAttribute]
public ref class ReportParameter
[<SerializableAttribute>]
type ReportParameter = class end
public class ReportParameter
Тип ReportParameter обеспечивает доступ к следующим элементам.
Конструкторы
| Имя | Описание | |
|---|---|---|
.gif "Открытый метод") |
ReportParameter | Initializes a new instance of the ReportParameter class. |
В начало
Свойства
| Имя | Описание | |
|---|---|---|
.gif "Открытое свойство") |
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 nullNothingnullptrunitпустая ссылка (Nothing в Visual Basic). |
|
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. |
В начало
Методы
| Имя | Описание | |
|---|---|---|
|
Equals | (Производный от Object.) |
.gif "Защищенный метод") |
Finalize | (Производный от Object.) |
|
GetHashCode | (Производный от Object.) |
|
GetType | (Производный от Object.) |
|
MemberwiseClone | (Производный от Object.) |
|
ToString | (Производный от Object.) |
В начало
Замечания
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.
Безопасность многопоточности
Любые открытые статический (Shared в Visual Basic) элементы этого типа потокобезопасны. Потокобезопасность с элементами экземпляров не гарантируется.
См. также