protected override bool SetValueInternal(object value, ValueUpdateSource updateSource)
{
bool result = false;
#if _DOTNET2
NullableConverter nc = TypeConverter as NullableConverter;
if ((value == null) || ((value != null) && UnderlyingType.IsInstanceOfType(value)) ||
((nc != null) && ((value == null) || nc.UnderlyingType.IsInstanceOfType(value))))
#else
if ((value != null) && UnderlyingType.IsInstanceOfType(value))
#endif
{
UnderlyingValue = value;
result = true;
}
if (updateSource != ValueUpdateSource.FromChild)
{
if ((mOwnerEnumerator != null) && // mOwnerEnumerator could be null for the boolean of Property._enabledVariable
!mOwnerEnumerator.Property.Value.NoLinkWithChildren)
{
PropertyTypeDescriptorContext context = GetTypeDescriptorContext(OwnerEnumerator);
if (TypeConverter.GetPropertiesSupported(context) == false)
{
PropertyEnumerator childEnum = mOwnerEnumerator.Children;
if (childEnum.Count > 0)
{
string masterStr = mOwnerEnumerator.Property.Value.GetStringValue();
char separator = mOwnerEnumerator.Property.Value.GroupedValueSeparator;
while (childEnum != childEnum.RightBound)
{
masterStr.TrimStart(null);
int count = masterStr.IndexOf(separator);
if (count != -1)
{
childEnum.Property.Value.SetValue(masterStr.Substring(0, count));
if (count + 2 < masterStr.Length)
{
masterStr = masterStr.Substring(count + 2); // advance after the separator and the leading space
}
}
else
{
childEnum.Property.Value.SetValue(masterStr);
break;
}
childEnum.MoveNext();
}
}
}
}
}
return(result);
}
protected internal override bool ValidateSelfValueFromModifiedChild(PropertyEnumerator modifiedChildEnum, object value)
{
if (Validator != null)
{
if (modifiedChildEnum.Property.Value is PropertyValueSimulated)
{
try
{
PropertyTypeDescriptorContext context = GetTypeDescriptorContext(modifiedChildEnum);
PropertyDescriptorCollection collection = TypeConverter.GetProperties(context, GetValue());
PropertyValue childValue = modifiedChildEnum.Property.Value;
if (collection != null)
{
IDictionary dictionary = new Hashtable(collection.Count);
foreach (PropertyDescriptor propertyDescriptor in collection)
{
if (modifiedChildEnum.Property.Name.Equals(propertyDescriptor.Name))
{
if (value is string)
{
dictionary[propertyDescriptor.Name] = childValue.TypeConverter.ConvertFromString(
context, childValue.CultureInfo, childValue.GetActualString(value as string));
}
else
{
dictionary[propertyDescriptor.Name] = value;
}
}
else
{
dictionary[propertyDescriptor.Name] = propertyDescriptor.GetValue(childValue.TargetInstance);
}
}
// Create the parent value from all the sibling values
object newParentValue = TypeConverter.CreateInstance(context, dictionary);
// Validate the parent value
PropertyEnumerator invalidPropEnum;
if (ValidateValue(newParentValue, out invalidPropEnum))
{
return(true);
}
}
}
catch (Exception)
{
return(false);
}
return(true);
}
}
return(true);
}
public override bool Check(object value, bool modify)
{
if (value == null)
{
return(true);
}
if (Enumerator == null)
{
throw new NullReferenceException("The constructor of the validator should have been passed an enumerator on the corresponding property.");
}
IComparable valueToCheck;
TypeConverter converter = TypeDescriptor.GetConverter(value.GetType());
if (converter.CanConvertFrom(value.GetType()))
{
PropertyTypeDescriptorContext context = Enumerator.Property.Value.GetTypeDescriptorContext(Enumerator);
valueToCheck = (IComparable)converter.ConvertFrom(context, Enumerator.Property.Value.CultureInfo, value);
}
else
{
valueToCheck = (IComparable)value;
}
bool result = true;
if (valueToCheck.CompareTo(Min) == -1)
{
if (modify)
{
Enumerator.Property.Value.SetValue(Min);
}
result = false;
}
else if (valueToCheck.CompareTo(Max) == 1)
{
if (modify)
{
Enumerator.Property.Value.SetValue(Max);
}
result = false;
}
if (result == false)
{
Message = "" + valueToCheck + " is not between " + Min + " and " + Max + ".";
}
else
{
Message = "";
}
return(result);
}
protected override bool SetValueInternal(object value, ValueUpdateSource updateSource)
{
bool result;
// Update the new value of this property
if (value is string)
{
if (UnderlyingType.IsEnum)
{
object enumValue = TypeConverter.ConvertFromString(GetTypeDescriptorContext(OwnerEnumerator),
CultureInfo, GetActualString(value as string));
// If the enum is flagged, we don't test if the value to be assigned is correct
if (UnderlyingType.IsDefined(typeof(FlagsAttribute), false))
{
result = SetMultipleValues(enumValue);
}
else
{
if (Enum.IsDefined(UnderlyingType, enumValue))
{
result = SetMultipleValues(enumValue);
}
else
{
result = false;
}
}
}
else
{
PropertyTypeDescriptorContext context = GetTypeDescriptorContext(OwnerEnumerator);
string str = GetActualString(value as string);
if (TypeConverter.CanConvertFrom(context, typeof(string)))
{
result = SetMultipleValues(TypeConverter.ConvertFromString(
context, CultureInfo, str));
}
else
{
result = SetMultipleValues(str);
}
}
}
else
{
result = SetMultipleValues(value);
}
return(result);
}
protected internal override bool ValidateSelfValueFromModifiedChild(PropertyEnumerator modifiedChildEnum, object value)
{
if (NoLinkWithChildren)
{
return(true);
}
if (Validator != null)
{
string str = "";
PropertyEnumerator selfEnum = modifiedChildEnum.Parent;
PropertyEnumerator childEnum = selfEnum.Children;
while (childEnum != childEnum.RightBound)
{
if (childEnum.Equals(modifiedChildEnum))
{
if (value is string)
{
str += (value as string);
}
else
{
PropertyTypeDescriptorContext context = childEnum.Property.Value.GetTypeDescriptorContext(childEnum);
str += (string)TypeDescriptor.GetConverter(value).ConvertTo(context,
childEnum.Property.Value.CultureInfo, value, typeof(string));
}
}
else
{
str += childEnum.Property.Value.GetStringValue();
}
childEnum.MoveNext();
if (childEnum != childEnum.RightBound)
{
str += GroupedValueSeparator;
str += " ";
}
}
if (Validator.Check(str, false) == false)
{
return(false);
}
}
return(true);
}
protected override bool SetValueInternal(object value, ValueUpdateSource updateSource)
{
try
{
PropertyValue parentValue = mOwnerEnumerator.Parent.Property.Value;
TypeConverter converter = parentValue.TypeConverter;
PropertyTypeDescriptorContext context = GetTypeDescriptorContext(OwnerEnumerator);
PropertyDescriptorCollection collection = converter.GetProperties(context, parentValue.GetValue());
if (collection != null)
{
IDictionary dictionary = new Hashtable(collection.Count);
foreach (PropertyDescriptor propertyDescriptor in collection)
{
if (OwnerEnumerator.Property.Name.Equals(propertyDescriptor.Name))
{
if (value is string)
{
dictionary[propertyDescriptor.Name] = TypeConverter.ConvertFromString(
context, CultureInfo, GetActualString(value as string));
}
else
{
dictionary[propertyDescriptor.Name] = value;
}
}
else
{
dictionary[propertyDescriptor.Name] = propertyDescriptor.GetValue(TargetInstance);
}
}
// Create the parent value from all the sibling values
PropertyDescriptor.SetValue(TargetInstance, value);
parentValue.SetValue(converter.CreateInstance(context, dictionary), ValueUpdateSource.FromChild);
}
}
catch (Exception)
{
return(false);
}
return(true);
}
protected internal PropertyValue[] GetChildValues(object[] targetInstances, PropertyDescriptor[] propertyDescriptors)
{
PropertyValue[] valueArray;
Hashtable propertyDescriptorDefs = new Hashtable(); // <PropertyDescriptor, List<PropertyDescriptor>>
PropertyDescriptorCollection collection = null;
bool firstTarget = true;
bool toBeSorted = true;
for(int i=0; i<targetInstances.Length; i++)
{
object targetInstance = targetInstances[i];
PropertyDescriptorCollection pdCollection = OwnerEnumerator.Property.ParentGrid.
GetPropertyDescriptors(targetInstance, propertyDescriptors[i], out toBeSorted);
if (collection == null)
{
PropertyDescriptor[] array = new PropertyDescriptor[pdCollection.Count];
pdCollection.CopyTo(array, 0);
collection = new PropertyDescriptorCollection(array);
}
foreach (PropertyDescriptor propertyDescriptor in pdCollection)
{
MergablePropertyAttribute mergeAttr = propertyDescriptor.Attributes[typeof(MergablePropertyAttribute)]
as MergablePropertyAttribute;
if ((mergeAttr != null) && (mergeAttr.AllowMerge == false))
continue;
if (firstTarget)
{
// For the first target instance, we store all the PropertyDescriptors
ArrayList pdList = new ArrayList();
pdList.Add(propertyDescriptor);
propertyDescriptorDefs.Add(propertyDescriptor, pdList);
}
else
{
// For all the remaining target instances, we compare the PropertyDescriptors
// to the first set of stored PropertyDescriptors. Their name and property type must
// correspond
ArrayList existPdList = (ArrayList)propertyDescriptorDefs[propertyDescriptor];
if (existPdList != null)
{
// If the propertyDesriptors match, we increment a count
if (OwnerEnumerator.Property.ParentGrid.MatchPropertyDescriptors(
(PropertyDescriptor)existPdList[0], propertyDescriptor))
{
existPdList.Add(propertyDescriptor);
}
// else the PropertyDescriptor is not eligible and is removed
else
propertyDescriptorDefs.Remove(propertyDescriptor);
}
}
}
firstTarget = false;
}
ArrayList validPropertyDescriptors = new ArrayList();
// Ensure that we count only propertyDescriptors that are present in all target instances
foreach (ArrayList pdList in propertyDescriptorDefs.Values)
{
if (pdList.Count != targetInstances.Length)
collection.Remove((PropertyDescriptor)pdList[0]);
}
// Sort the collection
if (toBeSorted && (Grid.PropertyComparer != null))
collection = collection.Sort(Grid.PropertyComparer);
PropertyTypeDescriptorContext context = new PropertyTypeDescriptorContext(null, targetInstances[0], null,
OwnerEnumerator.Property.ParentGrid);
bool readOnlyProperties = TypeConverter.GetCreateInstanceSupported(context);
valueArray = new PropertyValue[collection.Count];
int index = 0;
foreach (PropertyDescriptor descriptor in collection)
{
PropertyValue propValue;
try
{
object obj = UnderlyingValue;
if (obj is ICustomTypeDescriptor)
obj = ((ICustomTypeDescriptor)obj).GetPropertyOwner(descriptor);
// TODO : pourquoi cette ligne ?
descriptor.GetValue(obj);
}
catch (Exception)
{
// Reason : activeXHide ?
}
if (readOnlyProperties)
propValue = new PropertyValueSimulated(Grid, this, descriptor);
else
propValue = new PropertyValueIndirect(Grid, this, UnderlyingValue, descriptor, null);
propValue.ChildValueCreatedBySPG = true;
PropertyIdAttribute attr = descriptor.Attributes[typeof(PropertyIdAttribute)] as PropertyIdAttribute;
propValue.Id = (attr != null ? attr.Id : 0);
valueArray[index++] = propValue;
}
return valueArray;
}
public override void Recreate(bool sendPropertyCreatedEvent)
{
Grid.InsideValueRecreate = true;
Grid.BeginUpdate();
object states = Grid.SavePropertiesStates();
// Set the grid in categorized mode
PropertyGrid.DisplayModes dispMode = Grid.DisplayMode;
if (dispMode != PropertyGrid.DisplayModes.Categorized)
{
Grid.Grid.DisplayMode = PropertyGrid.DisplayModes.Categorized;
}
RecreateChildProperties();
PropertyValue parentValue = null;
if (OwnerEnumerator.Parent.Property != null)
{
parentValue = OwnerEnumerator.Parent.Property.Value;
}
PropertyTypeDescriptorContext context = GetTypeDescriptorContext(OwnerEnumerator);
if ((parentValue == null) || !parentValue.TypeConverter.GetPropertiesSupported(context) ||
parentValue.TypeConverter.GetCreateInstanceSupported(context))
{
PropertyDescriptor pd = null;
object target = TargetInstance;
if (target != null)
{
pd = TypeDescriptor.GetProperties(target,
new Attribute[1] {
BrowsableAttribute.Yes
})[((PropertyDescriptor)((Utilities.KeyValuePair)_targets[0]).Key).Name];
}
if (pd != null)
{
_targets[0] = new Utilities.KeyValuePair(pd, ((Utilities.KeyValuePair)_targets[0]).Value);
ResetDisplayedValues(true);
Grid.ShowProperty(mOwnerEnumerator, true);
}
else
{
// Hide properties that are suddenly not browsable
Grid.ShowProperty(mOwnerEnumerator, false);
}
}
// Handle ReadOnly
bool readOnly = IsReadOnly(mOwnerEnumerator);
if (readOnly)
{
if (Grid.ReadOnlyVisual == PropertyGrid.ReadOnlyVisuals.Disabled)
{
Grid.EnableProperty(mOwnerEnumerator, false);
}
else
{
mOwnerEnumerator.Property.ForeColor = DisabledForeColor;
}
}
else
{
Grid.EnableProperty(mOwnerEnumerator, true);
mOwnerEnumerator.Property.ForeColor = Grid.ForeColor;
}
if (Feel == null)
{
if (!readOnly || (((Look == null) || !Look.NoFeelForReadOnly) && (Grid.ReadOnlyVisual == PropertyGrid.ReadOnlyVisuals.ReadOnlyFeel)))
{
Feel = Grid.Grid.FindFeel(mOwnerEnumerator.Parent, mOwnerEnumerator);
}
}
if (sendPropertyCreatedEvent)
{
Grid.OnPropertyCreated(new PropertyCreatedEventArgs(OwnerEnumerator));
}
// Set the grid in non categorized mode if it was as such before calling SelectedObject(s)
if (dispMode != PropertyGrid.DisplayModes.Categorized)
{
Grid.Grid.DisplayMode = dispMode;
}
Grid.RestorePropertiesStates(states);
Grid.EndUpdate();
Grid.InsideValueRecreate = false;
}
private void HandleUpDownButton(ButtonID buttonId, bool rotate)
{
string strValue = Text;
PropertyUpDownEventArgs args = new PropertyUpDownEventArgs(
_ownerPropertyEnum, (buttonId == ButtonID.Up ? PropertyUpDownEventArgs.UpDownButtons.Up :
PropertyUpDownEventArgs.UpDownButtons.Down));
args.Value = Text;
string oldStr = Text;
_ownerPropertyEnum.Property.ParentGrid.OnPropertyUpDown(args);
if (Text != args.Value)
{
strValue = args.Value;
}
else
{
string[] displayedStrings = _ownerPropertyEnum.Property.Value.GetDisplayedValues();
if (displayedStrings.Length > 0)
{
strValue = Text;
if (_ownerPropertyEnum.Property.Value.HasMultipleValues)
{
int index = -1;
if (buttonId == ButtonID.Down)
{
index = displayedStrings.Length - 1;
}
else if (buttonId == ButtonID.Up)
{
index = 0;
}
if (index != -1)
{
strValue = displayedStrings[index];
}
}
else
{
for (int i = 0; i < displayedStrings.Length; i++)
{
if (displayedStrings[i] == strValue)
{
int index = -1;
if ((buttonId == ButtonID.Down) && (i > 0))
{
index = i - 1;
}
else if ((buttonId == ButtonID.Down) && rotate)
{
index = displayedStrings.Length - 1;
}
else if ((buttonId == ButtonID.Up) && (i < displayedStrings.Length - 1))
{
index = i + 1;
}
else if ((buttonId == ButtonID.Up) && rotate)
{
index = 0;
}
if (index != -1)
{
strValue = displayedStrings[index];
}
break;
}
}
}
}
else if (_ownerPropertyEnum.Property.Value.UnderlyingType != typeof(string))
{
TypeConverter tc = _ownerPropertyEnum.Property.Value.TypeConverter;
PropertyTypeDescriptorContext context = _ownerPropertyEnum.Property.Value.GetTypeDescriptorContext(_ownerPropertyEnum);
decimal value;
object originalValue;
try
{
if (_ownerPropertyEnum.Property.Value.HasMultipleValues)
{
DefaultValueAttribute attr = (DefaultValueAttribute)_ownerPropertyEnum.Property.Value.GetAttribute(typeof(DefaultValueAttribute));
if (attr != null)
{
originalValue = attr.Value;
}
else
{
originalValue = 0;
}
value = Convert.ToDecimal(originalValue);
}
else
{
originalValue = tc.ConvertFromString(context,
_ownerPropertyEnum.Property.Value.CultureInfo, Text);
value = Convert.ToDecimal(originalValue);
}
}
catch (Exception e)
{
_currentInvalidPropertyEnum = OwnerPropertyEnumerator;
_currentValueValidationResult = PropertyValue.ValueValidationResult.TypeConverterFailed;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum, Text,
PropertyValue.ValueValidationResult.TypeConverterFailed, e));
return;
}
if (buttonId == ButtonID.Up)
{
try
{
value += Increment;
}
catch (OverflowException)
{
}
}
else if (buttonId == ButtonID.Down)
{
try
{
value -= Increment;
}
catch (OverflowException)
{
}
}
CultureInfo culture = _ownerPropertyEnum.Property.Value.CultureInfo;
strValue = tc.ConvertToString(context, culture,
Convert.ChangeType(value, originalValue.GetType(), culture));
if (strValue == null)
{
strValue = "";
}
}
}
if (Text != strValue)
{
_ownerPropertyEnum.Property.Value.PreviousValue = _ownerPropertyEnum.Property.Value.GetValue();
PropertyValidatorBase validator = _ownerPropertyEnum.Property.Value.Validator;
// Check current value
try
{
object valueToValidate = _ownerPropertyEnum.Property.Value.GetValueToValidate(Text);
if (validator != null)
{
if (!validator.Check(_ownerPropertyEnum.Property.Value.GetValueToValidate(Text), false))
{
if (_edit != null)
{
_edit.SelectAll();
}
_currentInvalidPropertyEnum = OwnerPropertyEnumerator;
_currentValueValidationResult = PropertyValue.ValueValidationResult.ValidatorFailed;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, OwnerPropertyEnumerator,
Text, _currentValueValidationResult));
return;
}
}
}
catch (Exception e)
{
if (_edit != null)
{
_edit.SelectAll();
}
_currentInvalidPropertyEnum = OwnerPropertyEnumerator;
_currentValueValidationResult = PropertyValue.ValueValidationResult.TypeConverterFailed;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum, Text,
PropertyValue.ValueValidationResult.TypeConverterFailed, e));
return;
}
if (validator != null)
{
if (!validator.Check(_ownerPropertyEnum.Property.Value.GetValueToValidate(strValue), false))
{
return;
}
}
if (_realtimeChange)
{
CommitChanges(strValue, false);
}
else
{
Text = strValue;
}
}
if ((_edit != null) && _edit.Focused)
{
_edit.SelectAll();
}
else
{
Invalidate();
}
}
