protected virtual IDataBinding CreateBinding([NotNull] IDataContext context, out object target, out IBindingPath targetPath)
{
IBindingSourceAccessor sourceAccessor;
var formatExpression = context.GetData(BindingBuilderConstants.MultiExpression);
var sourceDelegates = context.GetData(BindingBuilderConstants.Sources, true);
if (sourceDelegates.Count > 1 || formatExpression != null)
{
formatExpression = formatExpression ?? FormatMembersExpressionDelegate;
var sources = new IObserver[sourceDelegates.Count];
for (int index = 0; index < sourceDelegates.Count; index++)
{
sources[index] = sourceDelegates[index].Invoke(context);
}
sourceAccessor = new MultiBindingSourceAccessor(sources, formatExpression, context);
}
else
{
sourceAccessor = new BindingSourceAccessor(sourceDelegates[0].Invoke(context), context, false);
}
var binding = new DataBinding(new BindingSourceAccessor(GetBindingTarget(context, out target, out targetPath), context, true), sourceAccessor);
object source;
if (context.TryGetData(BindingBuilderConstants.Source, out source))
{
binding.Context.AddOrUpdate(BindingConstants.Source, ToolkitExtensions.GetWeakReference(source));
}
AddBehaviors(binding, context);
return(binding);
}
protected virtual IDataBinding CreateBinding([NotNull] IDataContext context, out object target, out IBindingPath targetPath)
{
IBindingSourceAccessor sourceAccessor;
var formatExpression = context.GetData(BindingBuilderConstants.MultiExpression);
var sourceDelegates = context.GetData(BindingBuilderConstants.Sources, true);
if (sourceDelegates.Count > 1 || formatExpression != null)
{
formatExpression = formatExpression ?? FormatMembersExpressionDelegate;
var sources = new IBindingSource[sourceDelegates.Count];
for (int index = 0; index < sourceDelegates.Count; index++)
{
sources[index] = Decorate(sourceDelegates[index].Invoke(context), false, context);
}
sourceAccessor = new MultiBindingSourceAccessor(sources, formatExpression, context);
}
else
{
sourceAccessor = new BindingSourceAccessor(Decorate(sourceDelegates[0].Invoke(context), false, context), context, false);
}
var binding = new DataBinding(new BindingSourceAccessor(GetBindingTarget(context, out target, out targetPath), context, true), sourceAccessor);
AddBehaviors(binding, context);
return(binding);
}
