/// <summary>
/// Gets resolved data from this or any Chained data item
/// where data is valid for view.
/// </summary>
/// <param name="view"></param>
/// <returns></returns>
public object GetData(string view)
{
if (string.IsNullOrEmpty(view) || IsCurrentValidForView(view))
{
return(Data);
}
else if (ChainedDataItem != null && ChainedDataItem.IsValidForView(view))
{
return(ChainedDataItem.GetData(view));
}
else
{
return(null);
}
}
/// <summary>
/// Gets the data control appropriate for the identified view
/// </summary>
/// <param name="view"></param>
/// <returns></returns>
public IDataContextInvokable GetDataControl(string view)
{
if (IsCurrentValidForView(view))
{
return(DataControl);
}
else if (ChainedDataItem != null)
{
return(ChainedDataItem.GetDataControl(view));
}
else
{
return(null);
}
}
public DataItem GetViewSpecificDataItem(string view)
{
if (IsCurrentValidForView(view))
{
return(this);
}
else if (ChainedDataItem != null)
{
return(ChainedDataItem.GetViewSpecificDataItem(view));
}
else
{
return(null);
}
}
/// <summary>
/// Tests to see if this data item or (chained data item)
/// is valid for the specified view
/// </summary>
/// <param name="viewName"></param>
public bool IsValidForView(string viewName)
{
if (IsCurrentValidForView(viewName))
{
return(true);
}
else if (ChainedDataItem != null)
{
return(ChainedDataItem.IsValidForView(viewName));
}
else
{
return(false);
}
}