Validator.TryValidateObject Method
Definition
Important
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Determines whether the specified object is valid.
Overloads
| TryValidateObject(Object, ValidationContext, ICollection<ValidationResult>) |
Determines whether the specified object is valid using the validation context and validation results collection. |
| TryValidateObject(Object, ValidationContext, ICollection<ValidationResult>, Boolean) |
Determines whether the specified object is valid using the validation context, validation results collection, and a value that specifies whether to validate all properties. |
TryValidateObject(Object, ValidationContext, ICollection<ValidationResult>)
- Source:
- Validator.cs
- Source:
- Validator.cs
- Source:
- Validator.cs
- Source:
- Validator.cs
Determines whether the specified object is valid using the validation context and validation results collection.
public:
static bool TryValidateObject(System::Object ^ instance, System::ComponentModel::DataAnnotations::ValidationContext ^ validationContext, System::Collections::Generic::ICollection<System::ComponentModel::DataAnnotations::ValidationResult ^> ^ validationResults);public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> validationResults);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")]
public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults);public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")]
public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")]
public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults);static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> -> bool[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")>]
static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> -> bool[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")>]
static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> -> bool[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")>]
static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> -> boolPublic Shared Function TryValidateObject (instance As Object, validationContext As ValidationContext, validationResults As ICollection(Of ValidationResult)) As BooleanParameters
- instance
- Object
The object to validate.
- validationContext
- ValidationContext
The context that describes the object to validate.
- validationResults
- ICollection<ValidationResult>
A collection to hold each failed validation.
Returns
true if the object validates; otherwise, false.
- Attributes
Exceptions
instance is null.
instance doesn't match the ObjectInstanceon validationContext.
Remarks
This method evaluates each ValidationAttribute instance that is attached to the object type. It also checks whether each property that is marked with RequiredAttribute is provided. It does not recursively validate the property values of the object.
Applies to
TryValidateObject(Object, ValidationContext, ICollection<ValidationResult>, Boolean)
- Source:
- Validator.cs
- Source:
- Validator.cs
- Source:
- Validator.cs
- Source:
- Validator.cs
Determines whether the specified object is valid using the validation context, validation results collection, and a value that specifies whether to validate all properties.
public:
static bool TryValidateObject(System::Object ^ instance, System::ComponentModel::DataAnnotations::ValidationContext ^ validationContext, System::Collections::Generic::ICollection<System::ComponentModel::DataAnnotations::ValidationResult ^> ^ validationResults, bool validateAllProperties);public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> validationResults, bool validateAllProperties);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")]
public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults, bool validateAllProperties);public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults, bool validateAllProperties);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")]
public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults, bool validateAllProperties);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")]
public static bool TryValidateObject(object instance, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults, bool validateAllProperties);static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> * bool -> bool[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Constructing a ValidationContext without a display name is not trim-safe because it uses reflection to discover the type of the instance being validated in order to resolve the DisplayNameAttribute when a display name is not provided.")>]
static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> * bool -> bool[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered.")>]
static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> * bool -> bool[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The Type of instance cannot be statically discovered and the Type's properties can be trimmed.")>]
static member TryValidateObject : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> * bool -> boolPublic Shared Function TryValidateObject (instance As Object, validationContext As ValidationContext, validationResults As ICollection(Of ValidationResult), validateAllProperties As Boolean) As BooleanParameters
- instance
- Object
The object to validate.
- validationContext
- ValidationContext
The context that describes the object to validate.
- validationResults
- ICollection<ValidationResult>
A collection to hold each failed validation.
- validateAllProperties
- Boolean
true to validate all properties; if false, only required attributes are validated.
Returns
true if the object validates; otherwise, false.
- Attributes
Exceptions
instance is null.
instance doesn't match theObjectInstanceon validationContext.
Remarks
This method evaluates each ValidationAttribute instance that is attached to the object type. It also checks whether each property that is marked with RequiredAttribute is provided. It validates the property values of the object if validateAllProperties is true but does not recursively validate properties of the objects returned by the properties.
