public Task <IValueProvider> BindAsync(object value, ValueBindingContext context)
{
IAttributeBindingSource binding = value as IAttributeBindingSource;
if (binding == null)
{
throw new InvalidOperationException("Unable to convert value to IAttributeBindingSource.");
}
return(BindAsync(binding, context));
}
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="bindingSource">The binding source.</param>
internal Binder(IAttributeBindingSource bindingSource)
{
_bindingSource = bindingSource;
// take a snapshot of the binding data
// any additional binding data added will be applied
// on bind
_bindingData = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase);
if (bindingSource.AmbientBindingContext.BindingData != null)
{
foreach (var pair in bindingSource.AmbientBindingContext.BindingData)
{
_bindingData[pair.Key] = pair.Value;
}
}
}
private Task <IValueProvider> BindAsync(IAttributeBindingSource binding, ValueBindingContext context)
{
IValueProvider provider = new RuntimeValueProvider(binding, _parameter.ParameterType);
return(Task.FromResult(provider));
}
private Task<IValueProvider> BindAsync(IAttributeBindingSource binding, ValueBindingContext context)
{
IValueProvider provider = new RuntimeValueProvider(binding, _parameter.ParameterType);
return Task.FromResult(provider);
}
public RuntimeValueProvider(IAttributeBindingSource bindingSource)
{
_bindingSource = bindingSource;
}
public RuntimeValueProvider(IAttributeBindingSource bindingSource, Type parameterType)
{
_binder = new Binder(bindingSource);
_parameterType = parameterType;
}
public RuntimeValueProvider(IAttributeBindingSource bindingSource, Type parameterType)
{
_binder = new Binder(bindingSource);
_parameterType = parameterType;
}
