/// <summary>For the header/footer</summary>
public static BindingContextPart CreateHeaderOrFooterBindingContextPart(IBindingContext parent, ITemplateDefinitionPart templateDefinitionPart, BindingContextPartType partType, object dataSource)
{
BindingContextPart ret = new BindingContextPart(parent, templateDefinitionPart, partType);
ret.Elements = new BindingContextElement[] { new BindingContextElement(ret, dataSource, 0) };
ret.ElementsToRender = ret.Elements.ToList();
return(ret);
}
public static BindingContextPart CreateBodyBindingContextPart(BindingContext parent, ITemplateDefinitionPart templateDefinitionPart, List <object> dataSourceAsList, ISortersAndFilters externalSorterAndFilter, ISortersAndFilters templatedSorterAndFilter)
{
BindingContextPart ret = new BindingContextPart(parent, templateDefinitionPart, BindingContextPartType.Body);
ret.ExternalSorterAndFilter = parent.ExternalSortsAndFilters;
int elementIndex = 0;
// Bug => Closure !!!!
// ret.Elements = dataSourceAsList.Select(ds => new BindingContextElement(ret, ds, elementIndex++));
List <IBindingContextElement> tmpElements = new List <IBindingContextElement>();
foreach (object obj in dataSourceAsList)
{
tmpElements.Add(new BindingContextElement(ret, obj, elementIndex++));
}
ret.Elements = tmpElements;
// The sorterers and filters defined outside templates have the priority
if (parent.ExternalSortsAndFilters != null)
{
Dictionary <object, IBindingContextElement> contextItemByElement = ret.Elements.ToDictionary(e => e.Element, e => e);
IEnumerable <object> elements = parent.ExternalSortsAndFilters.Execute(contextItemByElement.Keys) as IEnumerable <object>;
ret.ElementsToRender = elements.Select(e => { IBindingContextElement el = null;
contextItemByElement.TryGetValue(e, out el);
return(el); });
}
else
{
ret.ElementsToRender = ret.Elements;
}
// Manage the filters defined in the templates
if (templatedSorterAndFilter != null)
{
Dictionary <object, IBindingContextElement> contextItemByElement = ret.ElementsToRender.ToDictionary(e => e.Element, e => e);
IEnumerable <object> elements = templatedSorterAndFilter.Execute(contextItemByElement.Keys) as IEnumerable <object>;
ret.ElementsToRender = elements.Select(e => { IBindingContextElement el = null;
contextItemByElement.TryGetValue(e, out el);
return(el); });
}
return(ret);
}
public BindingContext(IBindingContextElement parent, ITemplateView owner, ITemplateDefinition templateDefinition, object dataSource, List <IFilterDefinition> templatedFilters)
{
try
{
if (owner == null)
{
throw new ArgumentNullException("The parameter 'owner' cannot be null");
}
if (templateDefinition == null)
{
throw new ArgumentNullException("The parameter 'templateDefinition' cannot be null");
}
Owner = owner;
TemplateDefinition = templateDefinition;
TemplatedFilters = templatedFilters;
IsExpanded = TemplateDefinition.TemplateOption.HeaderAsExpander != HeaderAsExpander.StartClosed;
//TemplatedSortsAndFilters = templatedSortsAndFilters;
Parent = parent;
DataSource = dataSource;
if (DataSource != null)
{
List <object> dataSourceAsList;
IBindingDefinition dataSourceType;
if (DataSource is IEnumerable)
{
dataSourceAsList = (DataSource as IEnumerable).Cast <object>().ToList();
dataSourceType = BindingDefinitionRoot.CreateInstance(dataSourceAsList.GetType());
}
else
{
dataSourceAsList = new List <object>();
dataSourceAsList.Add(DataSource); //new object[] { DataSource };
dataSourceType = BindingDefinitionRoot.CreateInstance(DataSource.GetType());
}
if (TemplateDefinition.MainBindingDefinition != null)
{
CheckType(TemplateDefinition.MainBindingDefinition, dataSourceType);
}
ISortersAndFilters externalSortersAndFilters = null;
owner.ExternalSortersAndFilters?.TryGetValue(TemplateDefinition, out externalSortersAndFilters);
//Occurrences = dataSourceAsList.Count;
if (TemplateDefinition.Body != null)
{
IEnumerable <IFilterDefinition> templatedFiltersToTakeIntoAccount = null;
if (templatedFilters != null)
{
IEnumerable <IFilterDefinition> templatedFiltersToTakeIntoAccountFound = templatedFilters.Where(tf => tf.TemplateDefinition == templateDefinition);
if (templatedFiltersToTakeIntoAccountFound.Any())
{
templatedFiltersToTakeIntoAccount = templatedFiltersToTakeIntoAccountFound;
}
}
ISorterDefinition[] sortersDefinition = null;
if (((TemplateView)owner).SorterDefinition != null && ((TemplateView)owner).SorterDefinition.TemplateDefinition == templateDefinition)
{
sortersDefinition = new ISorterDefinition[] { ((TemplateView)owner).SorterDefinition }
}
;
ISortersAndFilters sortersAndFilters = null;
if (templatedFilters != null || sortersDefinition != null)
{
sortersAndFilters = SortersAndFilterersFactory.CreateInstance(templateDefinition, templatedFiltersToTakeIntoAccount, sortersDefinition);
}
Body = BindingContextPart.CreateBodyBindingContextPart(this, TemplateDefinition.Body, dataSourceAsList, externalSortersAndFilters, sortersAndFilters);
}
if (TemplateDefinition.Header != null)
{
Header = BindingContextPart.CreateHeaderOrFooterBindingContextPart(this, TemplateDefinition.Header, BindingContextPartType.Header, DataSource);
}
if (TemplateDefinition.Footer != null)
{
Footer = BindingContextPart.CreateHeaderOrFooterBindingContextPart(this, TemplateDefinition.Footer, BindingContextPartType.Header, DataSource);
}
}
}
catch (Exception ex)
{
string message = $"Create the 'BindingContext' for template '{(templateDefinition == null ? string.Empty : templateDefinition.Name)}' failed . {ex.Message}";
throw new EtkException(message);
}
}