public static ExcelBindingDefinitionFormulaResult CreateInstance(ExcelTemplateDefinition templateDefinition, string definition)
{
try
{
definition = definition.Replace(FORMULA_RESULT_PREFIX, string.Empty);
definition = definition.TrimEnd('}');
//UseFormulaBindingDefinition
string[] parts = definition.Split(';');
if (parts.Count() > 2)
{
throw new ArgumentException($"dataAccessor '{definition}' is invalid.");
}
string useFormulaDefinition = null;
string underlyingDefinition;
if (parts.Count() == 1)
{
underlyingDefinition = $"{{{parts[0].Trim()}}}";
}
else
{
useFormulaDefinition = $"{{{parts[0].Trim()}}}";
underlyingDefinition = $"{{{parts[1].Trim()}}}";
}
BindingDefinitionDescription bindingDefinitionDescription = BindingDefinitionDescription.CreateBindingDescription(templateDefinition, underlyingDefinition, underlyingDefinition);
IBindingDefinition underlyingBindingDefinition = BindingDefinitionFactory.CreateInstances(templateDefinition, bindingDefinitionDescription);
IBindingDefinition useFormulaBindingDefinition = null;
if (!string.IsNullOrEmpty(useFormulaDefinition))
{
bindingDefinitionDescription = BindingDefinitionDescription.CreateBindingDescription(templateDefinition, useFormulaDefinition, useFormulaDefinition);
useFormulaBindingDefinition = BindingDefinitionFactory.CreateInstances(templateDefinition, bindingDefinitionDescription);
}
ExcelBindingDefinitionFormulaResult ret = new ExcelBindingDefinitionFormulaResult(bindingDefinitionDescription, underlyingBindingDefinition, useFormulaBindingDefinition);
return(ret);
}
catch (Exception ex)
{
string message = $"Cannot retrieve the formula result binding dataAccessor '{definition.EmptyIfNull()}'. {ex.Message}";
throw new EtkException(message);
}
}
public ExcelContextItemFormulaResult(IBindingContextElement parent, IBindingDefinition bindingDefinition)
: base(parent, bindingDefinition)
{
excelBindingDefinitionFormulaResult = bindingDefinition as ExcelBindingDefinitionFormulaResult;
CanNotify = excelBindingDefinitionFormulaResult.CanNotify;
//NestedContextItem = nestedContextItem;
if (CanNotify)
{
objectsToNotify = bindingDefinition.GetObjectsToNotify(DataSource);
if (objectsToNotify != null)
{
foreach (INotifyPropertyChanged obj in objectsToNotify)
{
obj.PropertyChanged += OnPropertyChanged;
}
}
}
}
