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using System;
using System.Windows.Markup;
namespace Gestor.Common.Helpers;
public class EnumBindingSourceExtension : MarkupExtension
{
private Type _enumType;
public Type EnumType
{
get
{
return _enumType;
}
set
{
if (!(value == _enumType))
{
if (null != value && !(Nullable.GetUnderlyingType(value) ?? value).IsEnum)
{
throw new ArgumentException("Type must be for an Enum.");
}
_enumType = value;
}
}
}
public EnumBindingSourceExtension()
{
}
public EnumBindingSourceExtension(Type enumType)
{
EnumType = enumType;
}
public override object ProvideValue(IServiceProvider serviceProvider)
{
if (null == _enumType)
{
throw new InvalidOperationException("The EnumType must be specified.");
}
Type type = Nullable.GetUnderlyingType(_enumType) ?? _enumType;
Array values = Enum.GetValues(type);
if (type == _enumType)
{
return values;
}
Array array = Array.CreateInstance(type, values.Length + 1);
values.CopyTo(array, 1);
return array;
}
}
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