[Feature] First party multi column autocomplete dropdown box.

Is your feature request related to a problem? Please describe.

its is very common for people to want to show multiple columns in a dropdown box on the web as their a good way to display information but requiring only one field for reference.

Describe the solution you'd like

Simliar to how the Kendo Ui one works the in built one would work as folows

  @(Html.MultiColumnComboBox()
                 .Name("tagItem")
                 .DataTextField("name")
                 .DataValueField("SearchId")
                 .Filter("contains")
                 .FilterFields(new string[] { "name", "ContactTitle", "CompanyName", "Country" })
                   .Columns(columns =>
                    {
                        columns.Add().Field("name").Title("Contact Name").Width("200px");
                        columns.Add().Field("dob").Title("Date Of Brith").Width("200px");

                       We could have other column types such as button  when when clicked would pass the id of the user.
                               columns.Add().Button("btnlinkcase")
                     Would add a checkbox to the list
                      columns.Add().CheckBox("chklinkcase")

                        })
                        .FooterTemplate("Total #: instance.dataSource.total() # items found")
                        .HtmlAttributes(new { style = "width:80%;" })
                        .Height(400)
                        .DataSource(source => source
                            .Custom()
                            .Transport(transport => transport
                                .Read(read =>
                                {
                                    read.Action("SearchQuery", "MISObjects")
                                        .Data("onAdditionalData");
                                }))
                        )
                        )

You should be able to post the values to a controller method for retrieveal such as the id etc.

Additional context

For example as per below once a person starts typing it should filter the results for example if I type Matt only mat should be visible and the id of Matt should be visible within the html.

When no items have been search it should display all the items in the list or the Iqueryable that the user has sent to the field.

dotnet / aspnetcore