// Token: 0x060007BD RID: 1981 RVA: 0x00018390 File Offset: 0x00016590
private object ResolvePropertyName(string name, object item, Type ownerType, object context, bool throwOnError)
{
string text = name;
int num;
if (PropertyPath.IsParameterIndex(name, out num))
{
if (0 <= num && num < this.PathParameters.Count)
{
object obj = this.PathParameters[num];
if (!PropertyPath.IsValidAccessor(obj))
{
throw new InvalidOperationException(SR.Get("PropertyPathInvalidAccessor", new object[]
{
(obj != null) ? obj.GetType().FullName : "null"
}));
}
return(obj);
}
else
{
if (throwOnError)
{
throw new InvalidOperationException(SR.Get("PathParametersIndexOutOfRange", new object[]
{
num,
this.PathParameters.Count
}));
}
return(null);
}
}
else
{
if (PropertyPath.IsPropertyReference(name))
{
name = name.Substring(1, name.Length - 2);
int num2 = name.LastIndexOf('.');
if (num2 >= 0)
{
text = name.Substring(num2 + 1).Trim();
string text2 = name.Substring(0, num2).Trim();
ownerType = this.GetTypeFromName(text2, context);
if (ownerType == null && throwOnError)
{
throw new InvalidOperationException(SR.Get("PropertyPathNoOwnerType", new object[]
{
text2
}));
}
}
else
{
text = name;
}
}
if (!(ownerType != null))
{
return(null);
}
object obj2 = DependencyProperty.FromName(text, ownerType);
if (obj2 == null && item is ICustomTypeDescriptor)
{
obj2 = TypeDescriptor.GetProperties(item)[text];
}
if (obj2 == null && (item is INotifyPropertyChanged || item is DependencyObject))
{
obj2 = this.GetPropertyHelper(ownerType, text);
}
if (obj2 == null && item != null)
{
obj2 = TypeDescriptor.GetProperties(item)[text];
}
if (obj2 == null)
{
obj2 = this.GetPropertyHelper(ownerType, text);
}
if (obj2 == null && SystemCoreHelper.IsIDynamicMetaObjectProvider(item))
{
obj2 = SystemCoreHelper.NewDynamicPropertyAccessor(item.GetType(), text);
}
if (obj2 == null && throwOnError)
{
throw new InvalidOperationException(SR.Get("PropertyPathNoProperty", new object[]
{
ownerType.Name,
text
}));
}
return(obj2);
}
}
// resolve a single DP name
object ResolvePropertyName(string name, object item, Type ownerType, object context, bool throwOnError)
{
string propertyName = name;
int index;
// first see if the name is an index into the parameter list
if (IsParameterIndex(name, out index))
{
if (0 <= index && index < PathParameters.Count)
{
object accessor = PathParameters[index];
// always throw if the accessor isn't valid - this error cannot
// be corrected later on.
if (!IsValidAccessor(accessor))
{
throw new InvalidOperationException(SR.Get(SRID.PropertyPathInvalidAccessor,
(accessor != null) ? accessor.GetType().FullName : "null"));
}
return(accessor);
}
else if (throwOnError)
{
throw new InvalidOperationException(SR.Get(SRID.PathParametersIndexOutOfRange, index, PathParameters.Count));
}
else
{
return(null);
}
}
// handle attached-property syntax: (TypeName.PropertyName)
if (IsPropertyReference(name))
{
name = name.Substring(1, name.Length - 2);
int lastIndex = name.LastIndexOf('.');
if (lastIndex >= 0)
{
// attached property - get the owner type
propertyName = name.Substring(lastIndex + 1).Trim();
string ownerName = name.Substring(0, lastIndex).Trim();
ownerType = GetTypeFromName(ownerName, context);
if (ownerType == null && throwOnError)
{
throw new InvalidOperationException(SR.Get(SRID.PropertyPathNoOwnerType, ownerName));
}
}
else
{
// simple name in parens - just strip the parens
propertyName = name;
}
}
if (ownerType != null)
{
// get an appropriate accessor from the ownerType and propertyName.
// We prefer accessors in a certain order, defined below.
object accessor;
// 1. DependencyProperty on the given type.
accessor = DependencyProperty.FromName(propertyName, ownerType);
// 2. PropertyDescriptor from item's custom lookup.
// When the item implements custom properties, we must use them.
if (accessor == null && item is ICustomTypeDescriptor)
{
accessor = TypeDescriptor.GetProperties(item)[propertyName];
}
// 3a. PropertyInfo, when item exposes INotifyPropertyChanged.
// 3b. PropertyInfo, when item is a DependencyObject (bug 1373351).
// This uses less working set than PropertyDescriptor, and we don't need
// the ValueChanged pattern. (If item is a DO and wants to raise
// change notifications, it should make the property a DP.)
if (accessor == null &&
(item is INotifyPropertyChanged || item is DependencyObject))
{
accessor = GetPropertyHelper(ownerType, propertyName);
}
// 4. PropertyDescriptor (obtain from item - this is reputedly
// slower than obtaining from type, but the latter doesn't
// discover properties obtained from TypeDescriptorProvider -
// see bug 1713000).
// This supports the WinForms ValueChanged pattern.
if (accessor == null && item != null)
{
accessor = TypeDescriptor.GetProperties(item)[propertyName];
}
// 5. PropertyInfo.
if (accessor == null)
{
accessor = GetPropertyHelper(ownerType, propertyName);
}
// 6. IDynamicMetaObjectProvider
// This supports the DLR's dynamic objects
if (accessor == null && SystemCoreHelper.IsIDynamicMetaObjectProvider(item))
{
accessor = SystemCoreHelper.NewDynamicPropertyAccessor(item.GetType(), propertyName);
}
if (accessor == null && throwOnError)
{
throw new InvalidOperationException(SR.Get(SRID.PropertyPathNoProperty, ownerType.Name, propertyName));
}
return(accessor);
}
return(null);
}
