PropertyBuilder.HasConversion 方法
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
多載
HasConversion(Type, Type, Type)
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Type conversionType, Type? comparerType, Type? providerComparerType);abstract member HasConversion : Type * Type * Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Type * Type * Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (conversionType As Type, comparerType As Type, providerComparerType As Type) As PropertyBuilder參數
- conversionType
- Type
要轉換到 和 的類型，或繼承 的類型。ValueConverter
- comparerType
- Type
一種繼承自 ValueComparer的類型。
- providerComparerType
- Type
一種繼承 到 ValueComparer 用於提供者值的型別。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion(Type, ValueComparer)
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Type conversionType, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? valueComparer);public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Type providerClrType, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer valueComparer);abstract member HasConversion : Type * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Type * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderabstract member HasConversion : Type * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Type * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (conversionType As Type, valueComparer As ValueComparer) As PropertyBuilderPublic Overridable Function HasConversion (providerClrType As Type, valueComparer As ValueComparer) As PropertyBuilder參數
- providerClrTypeconversionType
- Type
那種需要轉換和轉回的類型。
- valueComparer
- ValueComparer
比較器在換算前用於數值。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion(ValueConverter, ValueComparer, ValueComparer)
設定屬性，使屬性值能利用給定 ValueConverter的 與資料庫 之間轉換。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter? converter, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? valueComparer, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? providerComparer);abstract member HasConversion : Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (converter As ValueConverter, valueComparer As ValueComparer, providerComparer As ValueComparer) As PropertyBuilder參數
- converter
- ValueConverter
使用轉換器。
- valueComparer
- ValueComparer
比較器在換算前用於數值。
- providerComparer
- ValueComparer
比較器用於提供者的價值。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion(Type, ValueComparer, ValueComparer)
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Type conversionType, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? valueComparer, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? providerComparer);abstract member HasConversion : Type * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Type * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (conversionType As Type, valueComparer As ValueComparer, providerComparer As ValueComparer) As PropertyBuilder參數
- conversionType
- Type
要轉換到 和 的類型，或繼承 的類型。ValueConverter
- valueComparer
- ValueComparer
比較器在換算前用於數值。
- providerComparer
- ValueComparer
比較器用於提供者的價值。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion(Type)
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Type? conversionType);public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Type providerClrType);abstract member HasConversion : Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderabstract member HasConversion : Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (conversionType As Type) As PropertyBuilderPublic Overridable Function HasConversion (providerClrType As Type) As PropertyBuilder參數
- providerClrTypeconversionType
- Type
那種需要轉換和轉回的類型。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion(ValueConverter, ValueComparer)
設定屬性，使屬性值能利用給定 ValueConverter的 與資料庫 之間轉換。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter? converter, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? valueComparer);public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter converter, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer valueComparer);abstract member HasConversion : Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (converter As ValueConverter, valueComparer As ValueComparer) As PropertyBuilder參數
- converter
- ValueConverter
使用轉換器。
- valueComparer
- ValueComparer
比較器在換算前用於數值。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion(ValueConverter)
設定屬性，使屬性值能利用給定 ValueConverter的 與資料庫 之間轉換。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter? converter);public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter converter);abstract member HasConversion : Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Microsoft.EntityFrameworkCore.Storage.ValueConversion.ValueConverter -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (converter As ValueConverter) As PropertyBuilder參數
- converter
- ValueConverter
使用轉換器。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion(Type, Type)
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion(Type conversionType, Type? comparerType);abstract member HasConversion : Type * Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Type * Type -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion (conversionType As Type, comparerType As Type) As PropertyBuilder參數
- conversionType
- Type
要轉換到 和 的類型，或繼承 的類型。ValueConverter
- comparerType
- Type
一種繼承自 ValueComparer的類型。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion<TConversion,TComparer,TProviderComparer>()
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion<TConversion,TComparer,TProviderComparer>() where TComparer : Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer where TProviderComparer : Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer;abstract member HasConversion : unit -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder (requires 'Comparer :> Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer and 'ProviderComparer :> Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer)
override this.HasConversion : unit -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder (requires 'Comparer :> Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer and 'ProviderComparer :> Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer)Public Overridable Function HasConversion(Of TConversion, TComparer, TProviderComparer) () As PropertyBuilder類型參數
- TConversion
要轉換到 和 的類型，或繼承 的類型。ValueConverter
- TComparer
一種繼承自 ValueComparer的類型。
- TProviderComparer
一種繼承 到 ValueComparer 用於提供者值的型別。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion<TConversion,TComparer>()
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion<TConversion,TComparer>() where TComparer : Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer;abstract member HasConversion : unit -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder (requires 'Comparer :> Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer)
override this.HasConversion : unit -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder (requires 'Comparer :> Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer)Public Overridable Function HasConversion(Of TConversion, TComparer) () As PropertyBuilder類型參數
- TConversion
要轉換到 和 的類型，或繼承 的類型。ValueConverter
- TComparer
一種繼承自 ValueComparer的類型。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion<TConversion>(ValueComparer, ValueComparer)
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion<TConversion>(Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? valueComparer, Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? providerComparer);abstract member HasConversion : Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer * Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion(Of TConversion) (valueComparer As ValueComparer, providerComparer As ValueComparer) As PropertyBuilder類型參數
- TConversion
要轉換到 和 的類型，或繼承 的類型。ValueConverter
參數
- valueComparer
- ValueComparer
比較器在換算前用於數值。
- providerComparer
- ValueComparer
比較器用於提供者的價值。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion<TConversion>()
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion<TConversion>();public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion<TProvider>();abstract member HasConversion : unit -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : unit -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion(Of TConversion) () As PropertyBuilderPublic Overridable Function HasConversion(Of TProvider) () As PropertyBuilder類型參數
- TConversion TProvider
要轉換到 和 的類型，或繼承 的類型。ValueConverter
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
適用於
HasConversion<TConversion>(ValueComparer)
設定屬性，使得在寫入資料庫前先轉換屬性值，讀取資料庫時又會再轉換回來。
public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion<TConversion>(Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer? valueComparer);public virtual Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder HasConversion<TProvider>(Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer valueComparer);abstract member HasConversion : Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder
override this.HasConversion : Microsoft.EntityFrameworkCore.ChangeTracking.ValueComparer -> Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilderPublic Overridable Function HasConversion(Of TConversion) (valueComparer As ValueComparer) As PropertyBuilderPublic Overridable Function HasConversion(Of TProvider) (valueComparer As ValueComparer) As PropertyBuilder類型參數
- TConversion TProvider
要轉換到 和 的類型，或繼承 的類型。ValueConverter
參數
- valueComparer
- ValueComparer
比較器在換算前用於數值。
傳回
同一個建構器實例，這樣可以串接多個設定呼叫。
