internal void UpdateDataSourcePropertyValue(string propertyName)
{
if (!listenForViewModelChanges)
{
return;
}
if (String.IsNullOrEmpty(propertyName))
{
return;
}
var elements = xmlLayout.GetElementsForDataSource(propertyName, propertyName);
if (elements.Count > 0)
{
object value = MVVMUtilities.GetNestedMemberValue(typeof(T), propertyName, viewModel);
if (value is IObservableList)
{
elements.ForEach(e => e.SetListData((IObservableList)value));
}
else
{
elements.ForEach(e => e.SetValue(value != null ? value.ToString() : null, false));
}
}
}
public override void ViewModelMemberChanged(string memberName)
{
if (!listenForViewModelChanges)
{
return;
}
// if this member is inline, then a complete rebuild is necessary
if (xmlLayout.Xml.Contains("{" + memberName + "}"))
{
ViewModelUpdated();
return;
}
// otherwise, look for the element(s) using the data source string
var elements = xmlLayout.GetElementsForDataSource(memberName, memberName);
if (elements.Count > 0)
{
object value = MVVMUtilities.GetNestedMemberValue(typeof(T), memberName, viewModel);
if (value is IObservableList)
{
elements.ForEach(e => e.SetListData((IObservableList)value));
}
else
{
elements.ForEach(e => e.SetValue(value != null ? value.ToString() : null, false));
}
}
return;
}
/// <summary>
/// Get the value of a field or property
/// </summary>
/// <param name="memberName"></param>
/// <returns></returns>
public object GetValue(string memberName)
{
return(MVVMUtilities.GetNestedMemberValue(GetType(), memberName, this));
}