/// <summary>
/// Creates a logical item given a data source item.
/// </summary>
/// <param name="sourceProperties">The source properties.</param>
/// <param name="item">The data source item.</param>
/// <returns></returns>
protected virtual T GetLogicalItem(PropertyDescriptorCollection sourceProperties, object item)
{
T logicalItem = this.CreateInstance();
PropertyDescriptorCollection targetProperties =
GetListItemPropertiesByType(logicalItem.GetType());
IEnumerator <PropertyMapping> enumerator = this.PropertyMappings.GetEnumerator();
while (enumerator.MoveNext())
{
PropertyMapping mapping = enumerator.Current;
if (!this.ShouldApplyMapping(mapping))
{
continue;
}
PropertyDescriptor sourceProp = sourceProperties.Find(mapping.DataSourceItemProperty, true);
if (sourceProp != null)
{
object value = sourceProp.GetValue(item);
PropertyDescriptor targetProp = targetProperties.Find(mapping.LogicalItemProperty, true);
if (targetProp != null)
{
if (mapping.ConvertToLogicalValue != null)
{
value = mapping.ConvertToLogicalValue(value, sourceProp.Converter);
}
targetProp.SetValue(logicalItem, value);
}
else
{
this.ProcessDataSourceValue(logicalItem, mapping, value);
}
}
else
{
PropertyDescriptor targetProp = targetProperties.Find(mapping.LogicalItemProperty, true);
if (targetProp != null)
{
this.OnSourcePropertyNotFound(item, mapping, targetProp, logicalItem);
}
}
}
logicalItem.SetDataItem(item);
return(logicalItem);
}
/// <summary>
/// Updates the data item properties.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="logicalItem">The logical item.</param>
protected virtual void UpdateDataItemProperties(object item, T logicalItem)
{
//this.OnUpdateDataSourceItemBegin();
IEnumerator <PropertyMapping> enumerator = this.PropertyMappings.GetEnumerator();
while (enumerator.MoveNext())
{
PropertyMapping mapping = enumerator.Current;
if (!this.UpdateDataItemProperty(item, logicalItem, mapping))
{
continue;
}
}
//this.OnUpdateDataSourceItemEnd();
}
//protected virtual void OnUpdateDataSourceItemBegin()
//{
//}
//protected virtual void OnUpdateDataSourceItemEnd()
//{
//}
protected virtual void ProcessLogicalItem(T logicalItem, object dataSourceItem, PropertyMapping mapping, PropertyDescriptor dataItemProperty)
{
}
/// <summary>
/// Called to process a value from the data source when the target sheduler item property
/// as per the mapping cannot be found.
/// </summary>
/// <param name="logicalItem">The logical item.</param>
/// <param name="mapping">The mapping.</param>
/// <param name="value">The value.</param>
protected virtual void ProcessDataSourceValue(T logicalItem, PropertyMapping mapping, object value)
{
}
protected virtual bool ShouldApplyMapping(PropertyMapping mapping)
{
return(true);
}
protected virtual void OnSourcePropertyNotFound(object dataItem, PropertyMapping mapping, PropertyDescriptor targetProp, object logicalItem)
{
//called in inheritors
}