RelationalTypeMappingSource.FindMapping Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| FindMapping(Type, String, Boolean, Nullable<Boolean>, Nullable<Int32>, Nullable<Boolean>, Nullable<Boolean>, Nullable<Int32>, Nullable<Int32>) |
Finds the type mapping for a given Type and additional facets. |
| FindMapping(Type, IModel, CoreTypeMapping) |
Finds the type mapping for a given Type, taking pre-convention configuration into the account. |
| FindMapping(Type) |
Finds the type mapping for a given Type. |
| FindMapping(String) |
Finds the type mapping for a given database type name. |
| FindMapping(Type, IModel) |
Finds the type mapping for a given Type, taking pre-convention configuration into the account. |
| FindMapping(TypeMappingInfo) |
Call Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingSource.FindMapping(Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingInfo@) instead |
| FindMapping(RelationalTypeMappingInfo) |
Overridden by relational database providers to find a type mapping for the given info. |
| FindMapping(IProperty) |
Finds the type mapping for a given IProperty. |
| FindMapping(IElementType) |
Finds the type mapping for the given IElementType. |
| FindMapping(MemberInfo) |
Finds the type mapping for a given MemberInfo representing a field or a property of a CLR type. |
FindMapping(Type, String, Boolean, Nullable<Boolean>, Nullable<Int32>, Nullable<Boolean>, Nullable<Boolean>, Nullable<Int32>, Nullable<Int32>)
Finds the type mapping for a given Type and additional facets.
public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping FindMapping (Type type, string storeTypeName, bool keyOrIndex = false, bool? unicode = default, int? size = default, bool? rowVersion = default, bool? fixedLength = default, int? precision = default, int? scale = default);public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? FindMapping (Type type, string? storeTypeName, bool keyOrIndex = false, bool? unicode = default, int? size = default, bool? rowVersion = default, bool? fixedLength = default, int? precision = default, int? scale = default);override this.FindMapping : Type * string * bool * Nullable<bool> * Nullable<int> * Nullable<bool> * Nullable<bool> * Nullable<int> * Nullable<int> -> Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingPublic Overridable Function FindMapping (type As Type, storeTypeName As String, Optional keyOrIndex As Boolean = false, Optional unicode As Nullable(Of Boolean) = Nothing, Optional size As Nullable(Of Integer) = Nothing, Optional rowVersion As Nullable(Of Boolean) = Nothing, Optional fixedLength As Nullable(Of Boolean) = Nothing, Optional precision As Nullable(Of Integer) = Nothing, Optional scale As Nullable(Of Integer) = Nothing) As RelationalTypeMappingParameters
- type
- Type
The CLR type.
- storeTypeName
- String
The database type name.
- keyOrIndex
- Boolean
If true, then a special mapping for a key or index may be returned.
Returns
The type mapping, or null if none was found.
Implements
Remarks
Note: Only call this method if there is no IProperty available, otherwise call FindMapping(IProperty)
Note: providers should typically not need to override this method.
Applies to
FindMapping(Type, IModel, CoreTypeMapping)
Finds the type mapping for a given Type, taking pre-convention configuration into the account.
[System.Runtime.CompilerServices.PreserveBaseOverrides]
public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? FindMapping (Type type, Microsoft.EntityFrameworkCore.Metadata.IModel model, Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping? elementMapping = default);[<System.Runtime.CompilerServices.PreserveBaseOverrides>]
override this.FindMapping : Type * Microsoft.EntityFrameworkCore.Metadata.IModel * Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping -> Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingPublic Overridable Function FindMapping (type As Type, model As IModel, Optional elementMapping As CoreTypeMapping = Nothing) As RelationalTypeMappingParameters
- type
- Type
The CLR type.
- model
- IModel
The model.
- elementMapping
- CoreTypeMapping
The element mapping to use, if known.
Returns
The type mapping, or null if none was found.
Implements
- Attributes
Remarks
Note: Only call this method if there is no IProperty, otherwise call FindMapping(IProperty).
Applies to
FindMapping(Type)
Finds the type mapping for a given Type.
public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping FindMapping (Type type);public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping? FindMapping (Type type);[System.Runtime.CompilerServices.PreserveBaseOverrides]
public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? FindMapping (Type type);override this.FindMapping : Type -> Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping[<System.Runtime.CompilerServices.PreserveBaseOverrides>]
override this.FindMapping : Type -> Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingPublic Overrides Function FindMapping (type As Type) As CoreTypeMappingPublic Overridable Function FindMapping (type As Type) As RelationalTypeMappingParameters
- type
- Type
The CLR type.
Returns
The type mapping, or null if none was found.
Implements
- Attributes
Remarks
Note: Only call this method if there is no IProperty or IModel available, otherwise call FindMapping(IProperty) or FindMapping(Type, IModel, CoreTypeMapping)
Note: providers should typically not need to override this method.
Applies to
FindMapping(String)
Finds the type mapping for a given database type name.
public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping FindMapping (string storeTypeName);public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? FindMapping (string storeTypeName);override this.FindMapping : string -> Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingPublic Overridable Function FindMapping (storeTypeName As String) As RelationalTypeMappingParameters
- storeTypeName
- String
The database type name.
Returns
The type mapping, or null if none was found.
Implements
Remarks
Note: Only call this method if there is no IProperty available, otherwise call FindMapping(IProperty)
Note: providers should typically not need to override this method.
Applies to
FindMapping(Type, IModel)
Finds the type mapping for a given Type, taking pre-convention configuration into the account.
public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping? FindMapping (Type type, Microsoft.EntityFrameworkCore.Metadata.IModel model);[System.Runtime.CompilerServices.PreserveBaseOverrides]
public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? FindMapping (Type type, Microsoft.EntityFrameworkCore.Metadata.IModel model);override this.FindMapping : Type * Microsoft.EntityFrameworkCore.Metadata.IModel -> Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping[<System.Runtime.CompilerServices.PreserveBaseOverrides>]
override this.FindMapping : Type * Microsoft.EntityFrameworkCore.Metadata.IModel -> Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingPublic Overrides Function FindMapping (type As Type, model As IModel) As CoreTypeMappingPublic Overridable Function FindMapping (type As Type, model As IModel) As RelationalTypeMappingParameters
- type
- Type
The CLR type.
- model
- IModel
The model.
Returns
The type mapping, or null if none was found.
Implements
- Attributes
Remarks
Note: Only call this method if there is no IProperty, otherwise call FindMapping(IProperty).
Applies to
FindMapping(TypeMappingInfo)
Call Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingSource.FindMapping(Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingInfo@) instead
protected override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping FindMapping (in Microsoft.EntityFrameworkCore.Storage.TypeMappingInfo mappingInfo);override this.FindMapping : TypeMappingInfo -> Microsoft.EntityFrameworkCore.Storage.CoreTypeMappingProtected Overrides Function FindMapping (mappingInfo As TypeMappingInfo) As CoreTypeMappingParameters
- mappingInfo
- TypeMappingInfo
The mapping info to use to create the mapping.
Returns
The type mapping, or null if none could be found.
Applies to
FindMapping(RelationalTypeMappingInfo)
Overridden by relational database providers to find a type mapping for the given info.
protected abstract Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping FindMapping (in Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingInfo mappingInfo);protected virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping FindMapping (in Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingInfo mappingInfo);protected virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? FindMapping (in Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingInfo? mappingInfo);override this.FindMapping : RelationalTypeMappingInfo -> Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingProtected MustOverride Function FindMapping (mappingInfo As RelationalTypeMappingInfo) As RelationalTypeMappingProtected Overridable Function FindMapping (mappingInfo As RelationalTypeMappingInfo) As RelationalTypeMappingParameters
- mappingInfo
- RelationalTypeMappingInfo
The mapping info to use to create the mapping.
Returns
The type mapping, or null if none could be found.
Remarks
The mapping info is populated with as much information about the required type mapping as is available. Use all the information necessary to create the best mapping. Return null if no mapping is available.
Applies to
FindMapping(IProperty)
Finds the type mapping for a given IProperty.
public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping FindMapping (Microsoft.EntityFrameworkCore.Metadata.IProperty property);public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping? FindMapping (Microsoft.EntityFrameworkCore.Metadata.IProperty property);override this.FindMapping : Microsoft.EntityFrameworkCore.Metadata.IProperty -> Microsoft.EntityFrameworkCore.Storage.CoreTypeMappingPublic Overrides Function FindMapping (property As IProperty) As CoreTypeMappingParameters
- property
- IProperty
The property.
Returns
The type mapping, or null if none was found.
Implements
Remarks
Note: providers should typically not need to override this method.
Applies to
FindMapping(IElementType)
Finds the type mapping for the given IElementType.
public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping? FindMapping (Microsoft.EntityFrameworkCore.Metadata.IElementType elementType);override this.FindMapping : Microsoft.EntityFrameworkCore.Metadata.IElementType -> Microsoft.EntityFrameworkCore.Storage.CoreTypeMappingPublic Overrides Function FindMapping (elementType As IElementType) As CoreTypeMappingParameters
- elementType
- IElementType
The collection element.
Returns
The type mapping, or null if none was found.
Implements
Remarks
Note: providers should typically not need to override this method.
Applies to
FindMapping(MemberInfo)
Finds the type mapping for a given MemberInfo representing a field or a property of a CLR type.
public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping FindMapping (System.Reflection.MemberInfo member);public override Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping? FindMapping (System.Reflection.MemberInfo member);[System.Runtime.CompilerServices.PreserveBaseOverrides]
public virtual Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? FindMapping (System.Reflection.MemberInfo member);override this.FindMapping : System.Reflection.MemberInfo -> Microsoft.EntityFrameworkCore.Storage.CoreTypeMapping[<System.Runtime.CompilerServices.PreserveBaseOverrides>]
override this.FindMapping : System.Reflection.MemberInfo -> Microsoft.EntityFrameworkCore.Storage.RelationalTypeMappingPublic Overrides Function FindMapping (member As MemberInfo) As CoreTypeMappingPublic Overridable Function FindMapping (member As MemberInfo) As RelationalTypeMappingParameters
- member
- MemberInfo
The field or property.
Returns
The type mapping, or null if none was found.
Implements
- Attributes
Remarks
Note: Only call this method if there is no IProperty available, otherwise call FindMapping(IProperty)
Note: providers should typically not need to override this method.
Applies to
Entity Framework
Feedback
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: https://aka.ms/ContentUserFeedback.
Submit and view feedback for