DataTypeAttribute Constructors
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Initializes a new instance of the DataTypeAttribute class.
| DataTypeAttribute(DataType) |
Initializes a new instance of the DataTypeAttribute class by using the specified type name. |
| DataTypeAttribute(String) |
Initializes a new instance of the DataTypeAttribute class by using the specified field template name. |
- Source:
- DataTypeAttribute.cs
- Source:
- DataTypeAttribute.cs
- Source:
- DataTypeAttribute.cs
Initializes a new instance of the DataTypeAttribute class by using the specified type name.
public:
DataTypeAttribute(System::ComponentModel::DataAnnotations::DataType dataType);public DataTypeAttribute(System.ComponentModel.DataAnnotations.DataType dataType);new System.ComponentModel.DataAnnotations.DataTypeAttribute : System.ComponentModel.DataAnnotations.DataType -> System.ComponentModel.DataAnnotations.DataTypeAttributePublic Sub New (dataType As DataType)Parameters
- dataType
- DataType
The name of the type to associate with the data field.
Examples
The following example shows how to use the DataTypeAttribute(DataType) constructor to specify an alternative type for a data field.
// Add type information.
[DataType(DataType.EmailAddress)]
public object EmailAddress;
' Add type information.
<DataType(DataType.EmailAddress)> _
Public EmailAddress As Object
Remarks
The name is one of the values that are defined by the System.ComponentModel.DataAnnotations.DataType enumeration.
Applies to
.NET 10 és más verziók
| Termék | Verziók |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0 (package-provided), 2.1 (package-provided) |
| UWP | 10.0 |
- Source:
- DataTypeAttribute.cs
- Source:
- DataTypeAttribute.cs
- Source:
- DataTypeAttribute.cs
Initializes a new instance of the DataTypeAttribute class by using the specified field template name.
public:
DataTypeAttribute(System::String ^ customDataType);public DataTypeAttribute(string customDataType);new System.ComponentModel.DataAnnotations.DataTypeAttribute : string -> System.ComponentModel.DataAnnotations.DataTypeAttributePublic Sub New (customDataType As String)Parameters
- customDataType
- String
The name of the custom field template to associate with the data field.
Exceptions
customDataType is null or an empty string ("").
Remarks
This method provides an alternative to using the UIHintAttribute attribute.
Applies to
.NET 10 és más verziók
| Termék | Verziók |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.0 (package-provided), 2.1 (package-provided) |
| UWP | 10.0 |
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