protected override void CacheMetadata(CodeActivityMetadata metadata)
{
bool isRequired = false;
if (!typeof(TOperand).GetTypeInfo().IsValueType)
{
metadata.AddValidationError(SR.TypeMustbeValueType(typeof(TOperand).Name));
}
if (typeof(TOperand).GetTypeInfo().IsEnum)
{
metadata.AddValidationError(SR.TargetTypeCannotBeEnum(this.GetType().Name, this.DisplayName));
}
if (string.IsNullOrEmpty(this.FieldName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("FieldName", this.DisplayName));
}
else
{
_fieldInfo = typeof(TOperand).GetField(this.FieldName);
isRequired = _fieldInfo != null && !_fieldInfo.IsStatic;
if (_fieldInfo == null)
{
metadata.AddValidationError(SR.MemberNotFound(this.FieldName, typeof(TOperand).Name));
}
else if (_fieldInfo.IsInitOnly)
{
metadata.AddValidationError(SR.MemberIsReadOnly(this.FieldName, typeof(TOperand).Name));
}
}
MemberExpressionHelper.AddOperandLocationArgument <TOperand>(metadata, this.OperandLocation, isRequired);
}
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
MethodInfo oldGetMethod = _getMethod;
MethodInfo oldSetMethod = _setMethod;
if (!typeof(TOperand).GetTypeInfo().IsValueType)
{
metadata.AddValidationError(SR.TypeMustbeValueType(typeof(TOperand).Name));
}
if (typeof(TOperand).GetTypeInfo().IsEnum)
{
metadata.AddValidationError(SR.TargetTypeCannotBeEnum(this.GetType().Name, this.DisplayName));
}
else if (String.IsNullOrEmpty(this.PropertyName))
{
metadata.AddValidationError(SR.ActivityPropertyMustBeSet("PropertyName", this.DisplayName));
}
else
{
_propertyInfo = typeof(TOperand).GetProperty(this.PropertyName);
if (_propertyInfo == null)
{
metadata.AddValidationError(SR.MemberNotFound(PropertyName, typeof(TOperand).Name));
}
}
bool isRequired = false;
if (_propertyInfo != null)
{
_setMethod = _propertyInfo.GetSetMethod();
_getMethod = _propertyInfo.GetGetMethod();
if (_setMethod == null)
{
metadata.AddValidationError(SR.MemberIsReadOnly(_propertyInfo.Name, typeof(TOperand)));
}
if (_setMethod != null && !_setMethod.IsStatic)
{
isRequired = true;
}
}
MemberExpressionHelper.AddOperandLocationArgument <TOperand>(metadata, this.OperandLocation, isRequired);
if (_propertyInfo != null)
{
if (MethodCallExpressionHelper.NeedRetrieve(_getMethod, oldGetMethod, _getFunc))
{
_getFunc = MethodCallExpressionHelper.GetFunc(metadata, _getMethod, s_funcCache, s_locker);
}
if (MethodCallExpressionHelper.NeedRetrieve(_setMethod, oldSetMethod, _setFunc))
{
_setFunc = MethodCallExpressionHelper.GetFunc(metadata, _setMethod, s_funcCache, s_locker, true);
}
}
}
