public ValueProviderResult GetValue(string key)
{
ConditionalGeneratorSimple <Region> generatorR = new ConditionalGeneratorSimple <Region>(_values);
generatorR.SetKeyValueExpression <string>("nameR", (r, n) => r.RegionName.StartsWith(n, StringComparison.OrdinalIgnoreCase));
ConditionalGeneratorSimple <City> generatorC = new ConditionalGeneratorSimple <City>(_values);
generatorC.SetKeyValueExpression <string>("nameC", (r, n) => r.CityName.StartsWith(n, StringComparison.OrdinalIgnoreCase));
Func <Region, bool> expressionR = generatorR.GetConditional().Compile();
Func <City, bool> expressionC = generatorC.GetConditional().Compile();
return(new ValueProviderResult(new MulticastDelegate[] { expressionR, expressionC }, key, CultureInfo.CurrentCulture));
}
public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext)
{
try
{
var values = actionContext.Request.RequestUri.ParseQueryString();
var generatorR = new ConditionalGeneratorSimple <Region>(values);
generatorR.SetKeyValueExpression <string>("nameR", (r, n) => r.RegionName.StartsWith(n, StringComparison.OrdinalIgnoreCase));
var generatorC = new ConditionalGeneratorSimple <City>(values);
generatorC.SetKeyValueExpression <string>("nameC", (r, n) => r.CityName.StartsWith(n, StringComparison.OrdinalIgnoreCase));
bindingContext.Model = new MulticastDelegate[] { generatorR.GetConditional().Compile(),
generatorC.GetConditional().Compile() };
return(true);
}
catch (Exception e)
{
return(false);
}
}