The ExpressionNodeConstant object represents an constant value that is used in an expression.
继承层次结构
System.Object
Microsoft.SqlServer.Management.Dmf.ExpressionNode
Microsoft.SqlServer.Management.Dmf.ExpressionNodeConstant
命名空间： Microsoft.SqlServer.Management.Dmf
程序集： Microsoft.SqlServer.Dmf（在 Microsoft.SqlServer.Dmf.dll 中）
语法
声明
<StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey := "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")> _
Public NotInheritable Class ExpressionNodeConstant _
Inherits ExpressionNode
用法
Dim instance As ExpressionNodeConstant
[StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")]
public sealed class ExpressionNodeConstant : ExpressionNode
[StrongNameIdentityPermissionAttribute(SecurityAction::LinkDemand, PublicKey = L"0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")]
public ref class ExpressionNodeConstant sealed : public ExpressionNode
[<SealedAttribute>]
[<StrongNameIdentityPermissionAttribute(SecurityAction.LinkDemand, PublicKey = "0024000004800000940000000602000000240000525341310004000001000100272736ad6e5f9586bac2d531eabc3acc666c2f8ec879fa94f8f7b0327d2ff2ed523448f83c3d5c5dd2dfc7bc99c5286b2c125117bf5cbe242b9d41750732b2bdffe649c6efb8e5526d526fdd130095ecdb7bf210809c6cdad8824faa9ac0310ac3cba2aa0523567b2dfa7fe250b30facbd62d4ec99b94ac47c7d3b28f1f6e4c8")>]
type ExpressionNodeConstant =
class
inherit ExpressionNode
end
public final class ExpressionNodeConstant extends ExpressionNode
ExpressionNodeConstant 类型公开以下成员。
构造函数
| 名称 | 说明 | |
|---|---|---|
.gif "公共方法") |
ExpressionNodeConstant | Initializes a new instance of the ExpressionNodeConstant class that has the specified object. |
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属性
| 名称 | 说明 | |
|---|---|---|
.gif "公共属性") |
Tag | Gets the tag text that is associated with the expression node. （从 ExpressionNode 继承。） |
|
Type | Gets the type of expression node. （从 ExpressionNode 继承。） |
|
TypeClass | Gets the class type when the expression node represents a constant value or a variable. （从 ExpressionNode 继承。） |
|
Value | Gets the object value that is the expression node constant. |
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方法
| 名称 | 说明 | |
|---|---|---|
|
ConvertToFilterNode | Creates a filter node by converting the expression node. （从 ExpressionNode 继承。） |
|
DeepClone | Returns the a copy of the expression node including properties. （覆盖 ExpressionNode.DeepClone()。） |
|
EnumChildren | Returns an enumerated list of dependent expression nodes. （从 ExpressionNode 继承。） |
|
Equals | Returns a Boolean value that specifies whether the referenced expression node object is equal to the specified object. （从 ExpressionNode 继承。） |
|
Evaluate(FacetEvaluationContext) | Evaluates the expression node with the given facet context. （从 ExpressionNode 继承。） |
|
Evaluate(FacetEvaluationContext, Boolean) | Evaluates the expression node with the given facet context and checks the script as a proxy. （从 ExpressionNode 继承。） |
|
GetHashCode | Gets the hash code for the object. （从 ExpressionNode 继承。） |
|
GetResult | Gets the result that is returned when an expression is deserialized. （从 ExpressionNode 继承。） |
|
GetResultString | Gets the result in string format that is returned when an expression is deserialized. （从 ExpressionNode 继承。） |
|
GetType | （从 Object 继承。） |
|
Serialize | Serializes the expression node to the specified XML Writer. （从 ExpressionNode 继承。） |
|
ToString | Returns the expression node constant in string format. （覆盖 ExpressionNode.ToString()。） |
|
ToStringForDisplay | Returns the expression node constant in string format with display formatting. （覆盖 ExpressionNode.ToStringForDisplay()。） |
|
ToStringForUrn | Returns the referenced object in URN format. （从 ExpressionNode 继承。） |
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注释
仅 Microsoft .NET Framework 的 2.0 版本支持此命名空间、类或成员。
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。