public static ExcelBindingDefinitionWithFormula CreateInstance(ExcelTemplateDefinition templateDefinition, BindingDefinitionDescription definition)
{
try
{
IBindingDefinition formulaBindingDefinition = null;
IBindingDefinition targetBindingDefinition = null;
if (!string.IsNullOrEmpty(definition.Formula))
{
BindingDefinitionDescription formulaBindingDefinitionDescription = BindingDefinitionDescription.CreateBindingDescription(templateDefinition, definition.Formula, definition.Formula);
formulaBindingDefinition = BindingDefinitionFactory.CreateInstances(templateDefinition, formulaBindingDefinitionDescription);
}
if (!string.IsNullOrEmpty(definition.BindingExpression))
{
string bindingExpression = $"{{{definition.BindingExpression}}}";
BindingDefinitionDescription targetBindingDefinitionDescription = BindingDefinitionDescription.CreateBindingDescription(templateDefinition, bindingExpression, bindingExpression);
targetBindingDefinition = BindingDefinitionFactory.CreateInstances(templateDefinition, targetBindingDefinitionDescription);
}
ExcelBindingDefinitionWithFormula ret = new ExcelBindingDefinitionWithFormula(definition, targetBindingDefinition, formulaBindingDefinition);
return(ret);
}
catch (Exception ex)
{
string message = $"Cannot create the 'ExcelBindingDefinitionWithFormula' from '{definition.BindingExpression ?? string.Empty}'. {ex.Message}";
throw new EtkException(message);
}
}
public ExcelContextItemWithFormula(IBindingContextElement parent, IBindingDefinition bindingDefinition)
: base(parent, bindingDefinition)
{
excelBindingDefinitionWithFormula = bindingDefinition as ExcelBindingDefinitionWithFormula;
CanNotify = excelBindingDefinitionWithFormula.CanNotify;
if (excelBindingDefinitionWithFormula.FormulaBindingDefinition != null)
{
formulaBindingContext = excelBindingDefinitionWithFormula.FormulaBindingDefinition.ContextItemFactory(parent);
}
if (CanNotify)
{
objectsToNotify = excelBindingDefinitionWithFormula.GetObjectsToNotify(DataSource);
if (objectsToNotify != null)
{
foreach (INotifyPropertyChanged obj in objectsToNotify)
{
obj.PropertyChanged += OnPropertyChanged;
}
}
}
}
