DataColumnSelectionConverter.CanConvertFrom(ITypeDescriptorContext, Type) 方法

定义

指示指定的源类型是否可转换为关联控件属性的类型。Indicates whether the specified source type can be converted to the type of the associated control property.

public:
 override bool CanConvertFrom(System::ComponentModel::ITypeDescriptorContext ^ context, Type ^ sourceType);
public override bool CanConvertFrom (System.ComponentModel.ITypeDescriptorContext context, Type sourceType);
override this.CanConvertFrom : System.ComponentModel.ITypeDescriptorContext * Type -> bool
Public Overrides Function CanConvertFrom (context As ITypeDescriptorContext, sourceType As Type) As Boolean

参数

context
ITypeDescriptorContext

可用于获取附加上下文信息的 ITypeDescriptorContext 实现。An ITypeDescriptorContext implementation that can be used to gain additional context information.

sourceType
Type

要转换的类型。The type to convert from.

返回

Boolean

如果转换器能执行转换,则为 true;否则为 falsetrue if the converter can perform the conversion; otherwise, false.

注解

调用 CanConvertFrom 方法以确定此方法是否 ConvertFrom 支持转换源类型。Call the CanConvertFrom method to determine whether the ConvertFrom method supports converting the source type.

ConvertFrom方法只可从字符串进行转换,因此 CanConvertFrom true 当是一个字符串时,此方法将返回 sourceTypeThe ConvertFrom method can convert only from a string, so the CanConvertFrom method returns true when sourceType is a string.

适用于