public Task BindModelAsync(ModelBindingContext bindingContext)
{
if (!bindingContext.ModelMetadata.IsEnumerableType)
{
bindingContext.Result = ModelBindingResult.Failed();
return(Task.CompletedTask);
}
string routeParam = Convert.ToString(bindingContext.ValueProvider.GetValue(bindingContext.ModelName));
if (string.IsNullOrWhiteSpace(routeParam))
{
bindingContext.Result = ModelBindingResult.Failed();
return(Task.CompletedTask);
}
var type = bindingContext.ModelType.GenericTypeArguments[0];
var typedList = _listProvider.GetTypedList(
routeParam.Split(',', StringSplitOptions.RemoveEmptyEntries), type, typeof(KeyList <>));
bindingContext.Model = typedList;
bindingContext.Result = ModelBindingResult.Success(bindingContext.Model);
return(Task.CompletedTask);
}
private Expression BuildInExpression(Expression member, QueryLogicalFilter logicalFilter, bool isIn)
{
var typedList = _listProvider.GetTypedList(logicalFilter.Filter.Values, member.Type, typeof(List <>));
var listExpression = Expression.Constant(typedList);
var containsMethod = typedList.GetType().GetMethod("Contains", new Type[] { member.Type });
return(Expression.Equal(Expression.Call(listExpression, containsMethod, member), Expression.Constant(isIn)));
}
