Generic expando object to handle search from front end MVC view

[fasteddys]

Hello, this is very nice after playing around I was hoping to get a sample with asp Core View, on how the developers can implement with a generic expando/dynamic object

• [ ] For e.g. if user are searching songs or images or some media, how can we get handle it as a generic request.
• [ ] Also what do we need to configure in the pipeline request handler so it handle it.

[fasteddys]

For e.g. I am including sample code to get dynamic lists etc. like so, this approach/option would significantly reduce code

private static void PrintSearchedDynamicList(IEnumerable<dynamic> dynamicList)
        {
            List<string> list = new List<string>();

            if (dynamicList.Count() < 1)
            {
                Console.WriteLine("We couldn't find any matching records.");
            }
            else
            {
                foreach (var dynamicObject in dynamicList)
                {
                    foreach (PropertyDescriptor descriptor in TypeDescriptor.GetProperties(dynamicObject))
                    {
                        string name = descriptor.Name;
                        object value = descriptor.GetValue(dynamicObject);

                    // add some logic to search with this dll, or call the paginatedsearch but how to configure and map

                        if (list.Contains(name + value) is false)
                        {
                            list.Add(name + value);
                            Console.WriteLine("{0}: {1}", name, value);
                        }
                    }
                }
            }
        }

[baranacikgoz]

• [ ] For e.g. if user are searching songs or images or some media, how can we get handle it as a generic request.

Unfortunately, I did not get what you mean.

[ ] Also what do we need to configure in the pipeline request handler so it handle it.

Currently we have no plans for pipelines, but I'd love to hear your idea.

[fasteddys]

Sorry not pipelines, at least based on what i know.

Use case for typical developers: Often we have to create a search and filter page in web aps. It would be sooo helpful, if we could reflect/extract the models attributes and create a search/filter page for the exposed attributes.

We would like to explore/see if there is a json object or C# .net object, that you can expose (which can take any poco model/entity) and spit out the list of search and filter items.

Using that exposed object, we can use that to iterate a list all the search items, and filter items on a page. And we can bind to that.

Check out this page demo.. https://querybuilder.js.org/ where they create the expression for the search, but it would the inverse, where the developer creates the expression and binds it to your search dll.

[baranacikgoz]

Do you mean such a thing like that?

public class User
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public DateTime DateOfBirth { get; set; }
}

// Generate a list of searchable fields
var searchableFields = SearchableFieldGenerator.Generate<User>();

// searchableFields might contain "FirstName", "LastName", "DateOfBirth"

[fasteddys]

yes @baranacikgoz it would be even easier if we could annotate the attributes.

[fasteddys]

hello @baranacikgoz sorry about the confusion, hope you can visualize, I am posting some examples.

Usually theres a poco or viewmodel.. I have to attach search and pagination based on the results on the front end page

Some examples to help visualize,

---

---

---

[fasteddys]

hello