public PropertyValidatorAttribute(string childPropertyName, Type validatorType, params object[] parameters)
{
if (childPropertyName == null)
throw new ArgumentException("The name of the child property can't be null");
_childPropertyName = childPropertyName;
_validator = (Activator.CreateInstance(validatorType, parameters) as PropertyValidatorBase);
}
protected override bool ProcessKeyPreview(ref Message m)
{
if (m.Msg == Win32Calls.WM_KEYDOWN)
{
Keys key = (Keys)(int)m.WParam;
if ((key == Keys.Down) || (key == Keys.Up) || (key == Keys.PageDown) || (key == Keys.PageUp))
{
if ((_edit != null) && _edit.Focused)
{
// Check to see if the current displayed value is valid regarding its TypeConverter
object valueToValidate = null;
try
{
valueToValidate = _ownerPropertyEnum.Property.Value.GetValueToValidate(Text);
}
catch (Exception e)
{
_edit.SelectAll();
_currentValueValidationResult = PropertyValue.ValueValidationResult.TypeConverterFailed;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, OwnerPropertyEnumerator,
Text, PropertyValue.ValueValidationResult.TypeConverterFailed, e));
return(true);
}
int newValue = (int)valueToValidate;
if (key == Keys.Down)
{
newValue -= _trackbar.SmallChange;
}
else if (key == Keys.Up)
{
newValue += _trackbar.SmallChange;
}
else if (key == Keys.PageDown)
{
newValue -= _trackbar.LargeChange;
}
else if (key == Keys.PageUp)
{
newValue += _trackbar.LargeChange;
}
// Check to see if the current displayed value is valid regarding its validator
PropertyValidatorBase validator = _ownerPropertyEnum.Property.Value.Validator;
if (validator != null)
{
bool newValueValid = validator.Check(newValue, false);
if (!validator.Check(valueToValidate, false))
{
// If the current value is invalid, let's see if the new one will be valid
if (newValueValid == false)
{
_currentInvalidPropertyEnum = OwnerPropertyEnumerator;
_edit.SelectAll();
_currentValueValidationResult = PropertyValue.ValueValidationResult.ValidatorFailed;
_ownerPropertyEnum.Property.ParentGrid.NotifyValueValidation(
new ValueValidationEventArgs(OwnerPropertyEnumerator, _currentInvalidPropertyEnum,
valueToValidate, _currentValueValidationResult));
return(true);
}
}
}
if (newValue != _trackbar.Value)
{
if (newValue > _trackbar.Maximum)
{
newValue = _trackbar.Maximum;
}
else if (newValue < _trackbar.Minimum)
{
newValue = _trackbar.Minimum;
}
_trackbar.Value = newValue;
Text = newValue.ToString();
_edit.SelectAll();
if (_realtimeChange)
{
CommitChanges(false);
}
return(true);
}
}
}
}
return(base.ProcessKeyPreview(ref m));
}
protected override bool ValidateValue(object value)
{
// Validate the underlying value
if (Validator != null)
{
if (Validator.Check(value, false) == false)
{
return(false);
}
}
if (mOwnerEnumerator == null)
{
return(true);
}
if ((NoLinkWithChildren == false) && !TypeConverter.GetPropertiesSupported())
{
// Validate children if any
PropertyEnumerator childEnum = mOwnerEnumerator.Children;
if (childEnum.Count > 0)
{
string masterStr = (value as string);
char separator = mOwnerEnumerator.Property.Value.GroupedValueSeparator;
while (childEnum != childEnum.RightBound)
{
PropertyValidatorBase validator = childEnum.Property.Value.Validator;
masterStr.TrimStart(null);
int count = masterStr.IndexOf(separator);
if (count != -1)
{
if ((validator != null) && (validator.Check(masterStr.Substring(0, count), false) == false))
{
return(false);
}
if (count + 2 < masterStr.Length)
{
masterStr = masterStr.Substring(count + 2); // advance after the separator and the leading space
}
childEnum.MoveNext();
}
else
{
if ((validator != null) && (validator.Check(masterStr, false) == false))
{
return(false);
}
break;
}
}
}
}
// Validate parent if any
PropertyEnumerator parentEnum = mOwnerEnumerator.Parent;
if ((parentEnum.Property != null) && (parentEnum.Property.Value != null) &&
(parentEnum.Property.Value.NoLinkWithChildren == false))
{
string str = "";
PropertyEnumerator childEnum = parentEnum.Children;
char separator = parentEnum.Property.Value.GroupedValueSeparator;
while (childEnum != childEnum.RightBound)
{
if (childEnum.Property.Value == this)
{
str += (value as string);
}
else
{
str += childEnum.Property.Value.GetStringValue();
}
childEnum.MoveNext();
if (childEnum != childEnum.RightBound)
{
str += separator;
str += " ";
}
}
PropertyValidatorBase validator = parentEnum.Property.Value.Validator;
if ((validator != null) && (validator.Check(str, false) == false))
{
return(false);
}
}
return(true);
}
public override bool ValidateValue(object value, out PropertyEnumerator invalidPropertyEnum)
{
invalidPropertyEnum = Grid.RightBound;
// Validate the underlying value
if (Validator != null)
{
if (Validator.Check(value, false) == false)
{
invalidPropertyEnum = OwnerEnumerator;
return(false);
}
}
if (mOwnerEnumerator == null)
{
return(true);
}
if ((NoLinkWithChildren == false) && !TypeConverter.GetPropertiesSupported())
{
// Validate children if any
PropertyEnumerator childEnum = mOwnerEnumerator.Children;
if (childEnum.Count > 0)
{
string masterStr = (value as string);
char separator = mOwnerEnumerator.Property.Value.GroupedValueSeparator;
while (childEnum != childEnum.RightBound)
{
PropertyValidatorBase validator = childEnum.Property.Value.Validator;
masterStr.TrimStart(null);
int count = masterStr.IndexOf(separator);
if (count != -1)
{
if (validator != null)
{
object valueToCheck = childEnum.Property.Value.TypeConverter.ConvertFrom(
GetTypeDescriptorContext(childEnum),
childEnum.Property.Value.CultureInfo,
masterStr.Substring(0, count));
if (validator.Check(valueToCheck, false) == false)
{
invalidPropertyEnum = childEnum;
return(false);
}
}
if (count + 2 < masterStr.Length)
{
masterStr = masterStr.Substring(count + 2); // advance after the separator and the leading space
}
childEnum.MoveNext();
}
else
{
if (validator != null)
{
object valueToCheck = childEnum.Property.Value.TypeConverter.ConvertFrom(
GetTypeDescriptorContext(childEnum),
childEnum.Property.Value.CultureInfo,
masterStr);
if (validator.Check(valueToCheck, false) == false)
{
invalidPropertyEnum = childEnum;
return(false);
}
}
break;
}
}
}
}
// Validate parent if any
if (mOwnerEnumerator != null)
{
PropertyEnumerator parentEnum = mOwnerEnumerator.Parent;
if ((parentEnum.Property != null) && (parentEnum.Property.Value != null))
{
bool valid = parentEnum.Property.Value.ValidateSelfValueFromModifiedChild(mOwnerEnumerator, value);
if (!valid)
{
invalidPropertyEnum = parentEnum;
}
return(valid);
}
}
/*
* PropertyEnumerator parentEnum = mOwnerEnumerator.Parent;
* if ((parentEnum.Property != null) && (parentEnum.Property.Value != null) &&
* (parentEnum.Property.Value.NoLinkWithChildren == false))
* {
* string str = "";
* PropertyEnumerator childEnum = parentEnum.Children;
* char separator = parentEnum.Property.Value.GroupedValueSeparator;
* while (childEnum != childEnum.RightBound)
* {
* if (childEnum.Property.Value == this)
* str += (value as string);
* else
* str += childEnum.Property.Value.GetStringValue();
* childEnum.MoveNext();
*
* if (childEnum != childEnum.RightBound)
* {
* str += separator;
* str += " ";
* }
* }
*
* PropertyValidatorBase validator = parentEnum.Property.Value.Validator;
* if ((validator != null) && (validator.Check(str, false) == false))
* return false;
* }*/
return(true);
}
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();
}
}
public PropertyValidatorAttribute(Type validatorType, params object[] parameters)
{
_validator = (Activator.CreateInstance(validatorType, parameters) as PropertyValidatorBase);
}
public PropertyValidatorAttribute(Type validatorType)
{
_validator = (Activator.CreateInstance(validatorType) as PropertyValidatorBase);
}
