protected static DescriptorPropertyInfo CreatePropertyInfo(System.ComponentModel.PropertyDescriptor propertyDescriptor, object propertyProvider)
{
var typeDescriptorContext = new TypeDescriptorContext(propertyProvider, propertyDescriptor);
var valueSources = ValueSources.Local | ValueSources.Default;
if (propertyDescriptor.PropertyType.IsEnum)
{
if (propertyDescriptor.PropertyType.IsDefined(typeof(FlagsAttribute), inherit: false))
{
return(new FlagDescriptorPropertyInfo(typeDescriptorContext, valueSources));
}
return(new EnumDescriptorPropertyInfo(typeDescriptorContext, valueSources));
}
if (propertyDescriptor.PropertyType.IsAssignableFrom(typeof(Core.FilePath)))
{
//var isDirectoryPropertyDescriptor = GetPropertyDescriptor (propertyDescriptor.GetChildProperties (), nameof (Core.FilePath.IsDirectory));
//if (isDirectoryPropertyDescriptor != null && (bool)isDirectoryPropertyDescriptor.GetValue (propertyItem)) {
// return new DirectoryPathPropertyInfo (propertyDescriptor, PropertyProvider, valueSources);
//}
return(new FilePathPropertyInfo(typeDescriptorContext, valueSources));
}
if (HasStandardValues(propertyDescriptor))
{
var standardValues = propertyDescriptor.Converter.GetStandardValues(typeDescriptorContext);
if (standardValues.Count > 0)
{
return(new StringStandardValuesPropertyInfo(standardValues, typeDescriptorContext, valueSources));
}
}
return(new DescriptorPropertyInfo(typeDescriptorContext, valueSources));
}
public EnumDescriptorPropertyInfo(TypeDescriptorContext typeDescriptorContext, ValueSources valueSources)
: base(typeDescriptorContext, valueSources)
{
values = Enum.GetValues(PropertyDescriptor.PropertyType);
var fields = PropertyDescriptor.PropertyType.GetFields();
names = new Hashtable();
foreach (System.Reflection.FieldInfo f in fields)
{
var att = (DescriptionAttribute)Attribute.GetCustomAttribute(f, typeof(DescriptionAttribute));
if (att != null)
{
names [f.Name] = att.Description;
}
else
{
names [f.Name] = f.Name;
}
}
for (int i = 0; i < values.Length; i++)
{
//name
var value = values.GetValue(i);
string str = PropertyDescriptor.Converter.ConvertToString(value);
if (names.Contains(str))
{
str = (string)names [str];
}
predefinedValues.Add(str, i.ToString());
}
}
public FlagDescriptorPropertyInfo(TypeDescriptorContext typeDescriptorContext, ValueSources valueSources) : base(typeDescriptorContext, valueSources)
{
IsValueCombinable = true;
elements = Enum.GetValues(typeDescriptorContext.PropertyDescriptor.PropertyType);
foreach (object value in elements)
{
ulong uintVal = Convert.ToUInt64(value);
predefinedValues.Add(value.ToString(), uintVal.ToString());
}
}
public DescriptorPropertyInfo(TypeDescriptorContext typeDescriptorContext, ValueSources valueSources)
{
this.typeDescriptorContext = typeDescriptorContext;
this.ValueSources = valueSources;
}
public FilePathPropertyInfo(TypeDescriptorContext typeDescriptorContext, ValueSources valueSources) : base(typeDescriptorContext, valueSources)
{
}
public StringStandardValuesPropertyInfo(TypeConverter.StandardValuesCollection standardValuesCollection, TypeDescriptorContext typeDescriptorContext, ValueSources valueSources) : base(typeDescriptorContext, valueSources)
{
foreach (object stdValue in standardValuesCollection)
{
var value = PropertyDescriptor.Converter.ConvertToString(stdValue);
if (value == ComponentModelObjectEditor.ComboSeparatorString)
{
//TODO: we need implement in proppy a way to allow separators
continue;
}
standardValues.Add(value, stdValue);
predefinedValues.Add(value, value);
}
}
