'宣言
Public Overloads Overrides Function ConvertFrom( _
ByVal As System.ComponentModel.ITypeDescriptorContext, _
ByVal As System.Globalization.CultureInfo, _
ByVal As System.Object _
) As System.Object
public override System.object ConvertFrom(
System.ComponentModel.ITypeDescriptorContext ,
System.Globalization.CultureInfo ,
System.object
)