protected void ValidateTextInternal()
{
// if (mEdit == null)
{
Invalidate();
PropertyValue value = _ownerPropertyEnum.Property.Value;
// Store the previous value
string oldValue = value.GetStringValue();
if (oldValue != ActualText)
{
// Freeze painting because updating the property may also update other properties in the grid.
_ownerPropertyEnum.Property.ParentGrid.BeginUpdate();
_ownerPropertyEnum.Property.Value.PreviousValue = _ownerPropertyEnum.Property.Value.GetValue();
value.UpdateStringValue(ActualText);
// Defreeze painting
_ownerPropertyEnum.Property.ParentGrid.EndUpdate();
// Notify the properties control if the value has really changed
if (value.GetStringValue() != oldValue)
{
_ownerPropertyEnum.Property.ParentGrid.OnPropertyChanged(new PropertyChangedEventArgs(_ownerPropertyEnum));
}
Parent.Invalidate();
}
}
}
public virtual PropertyValue.ValueValidationResult CommitChanges(bool final)
{
PropertyValue.ValueValidationResult changed = PropertyValue.ValueValidationResult.PreviousValueRestored;
if (ReadOnly)
{
return(changed);
}
PropertyValue value = _ownerPropertyEnum.Property.Value;
bool compareTextInCommitChanges = value.TypeConverter.CanConvertFrom(typeof(string));
bool textHasChanged = false;
if (compareTextInCommitChanges)
{
textHasChanged = !value.DisplayString.Equals(Text);
}
object oldValue = null;
object newValue = null;
bool multipleValues = value.HasMultipleValues;
if (!compareTextInCommitChanges || textHasChanged)
{
// Store the previous value
if (!multipleValues)
{
oldValue = value.GetValue();
}
try
{
if (!multipleValues || (Text.Length != 0))
{
newValue = value.GetActualValue(Text);
}
}
catch (Exception e)
{
_currentInvalidPropertyEnum = _ownerPropertyEnum;
_currentValueValidationResult = PropertyValue.ValueValidationResult.TypeConverterFailed;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
Text, PropertyValue.ValueValidationResult.TypeConverterFailed, e));
if (_ownerPropertyEnum.Property.ParentGrid.ValueNotValidBehaviorMode == PropertyGrid.ValueNotValidBehaviorModes.IgnoreAndRestore)
{
Text = value.DisplayString;
_currentValueValidationResult = PropertyValue.ValueValidationResult.PreviousValueRestored;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
value.GetValue(), _currentValueValidationResult));
}
return(_currentValueValidationResult);
}
}
if ((multipleValues && textHasChanged) ||
((newValue != null) && ((oldValue == null) || (newValue.Equals(oldValue) == false))) ||
((newValue == null) && (oldValue != null)))
{
string str = Text;
// Freeze painting because updating the property may also update other properties in the grid.
// If the value is invalid based on the validator, all updated properties will be reverted back to
// the previous value and a flicker would happen
_ownerPropertyEnum.Property.ParentGrid.BeginUpdate();
_ownerPropertyEnum.Property.Value.PreviousValue = _ownerPropertyEnum.Property.Value.GetValue();
PropertyEnumerator invalidPropertyEnum;
changed = value.SetValueFromInPlaceCtrl(str, out invalidPropertyEnum);
if (PropertyValue.IsErrorCode(changed))
{
_currentInvalidPropertyEnum = invalidPropertyEnum;
}
// Notify the grid if the value is invalid
if (changed == PropertyValue.ValueValidationResult.ValidatorFailed)
{
OwnerPropertyEnumerator.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
newValue, PropertyValue.ValueValidationResult.ValidatorFailed));
}
else if (changed == PropertyValue.ValueValidationResult.ExceptionByClient)
{
OwnerPropertyEnumerator.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
newValue, PropertyValue.ValueValidationResult.ExceptionByClient, value.LastExceptionByClient));
}
// We have to update the edit control in case the value was refused or if its string representation
// is different from what was typed (changes done by a CultureInfo for example)
if ((_ownerPropertyEnum.Property.ParentGrid.ValueNotValidBehaviorMode ==
PropertyGrid.ValueNotValidBehaviorModes.IgnoreAndRestore) ||
(changed == PropertyValue.ValueValidationResult.Validated))
{
if (PasswordChar == 0)
{
Text = value.DisplayString;
}
else
{
Text = value.GetStringValue();
}
}
// If value is invalid, previous value is restored if ValueNotValidBehaviorMode is set accordingly
if (_ownerPropertyEnum.Property.ParentGrid.ValueNotValidBehaviorMode == PropertyGrid.ValueNotValidBehaviorModes.IgnoreAndRestore)
{
if (PropertyValue.IsErrorCode(changed))
{
changed = PropertyValue.ValueValidationResult.PreviousValueRestored;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
value.GetValue(), changed));
}
}
// Notify the properties control if the value has really changed
if (changed == PropertyValue.ValueValidationResult.Validated)
{
if (PropertyValue.IsErrorCode(_currentValueValidationResult))
{
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
value.GetValue(), changed));
}
_ownerPropertyEnum.Property.ParentGrid.NotifyPropertyChanged(new PropertyChangedEventArgs(_ownerPropertyEnum));
}
_currentValueValidationResult = changed;
// Defreeze painting and repaint
_ownerPropertyEnum.Property.ParentGrid.EndUpdate();
}
else
{
// Even if the value did not change, we ensure the text displayed is correct. A CultureInfo could
// be involved for example that would change a modified text into the old value.
Text = value.DisplayString;
if (PropertyValue.IsErrorCode(_currentValueValidationResult))
{
_currentValueValidationResult = PropertyValue.ValueValidationResult.PreviousValueRestored;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
value.GetValue(), _currentValueValidationResult));
}
}
return(changed);
}
