Radu Enucă's Blog - All Comments

re: ASP.NET MVC – Extending the DropDownList to show the items grouped by a category

Tulika Shrivastava — Thu, 09 May 2013 10:00:09 GMT

Thanks for this code.

To have option and optgroup at the same level in one drop down box, the code can be edited as below -

if (string.IsNullOrWhiteSpace(group.Key))

{

foreach (var item in group)

{

listItemBuilder.AppendLine(ListItemToOption(item));

}

else

{

var groupName = groupedSelectListItems.Where(i => i.GroupKey == group.Key).Select(it => it.GroupName).FirstOrDefault();

listItemBuilder.AppendLine(string.Format("<optgroup label=\"{0}\" value=\"{1}\">", groupName, group.Key));

foreach (var item in group)

{

listItemBuilder.AppendLine(ListItemToOption(item));

}

listItemBuilder.AppendLine("</optgroup>");

}

re: ASP.NET MVC–Displaying a tree view using a recursive declarative helper and jQuery

robinspaul — Fri, 03 May 2013 10:16:22 GMT

I am using HierarchyID in SQL2008. Will this example work for it? Hope I have to use Stored Prcedure to populate all parents and children in the hierarchy. I have 6 levels in the hierarchy.

re: ASP.NET MVC – Extending the DropDownList to show the items grouped by a category

Mark — Tue, 08 Jan 2013 08:26:21 GMT

Does it support MVC4?

re: ASP.NET MVC – Extending the DropDownList to show the items grouped by a category

Joe — Mon, 26 Nov 2012 18:46:10 GMT

Is `IDictionary<string , IEnumerable<SelectListItem>>` the right type for this? IDictionary<TKey, TValue> doesn't guarantee the order, and in most cases the caller will want to control the order in which the groups are rendered.

Maybe should pass the data in another way, e.g. as an IEnumerable<Tuple<string, IEnumerable<SelectListItem>> or for .NET 3.x IEnumerable<KeyValuePair<string, IEnumerable<SelectListItem>>.

re: ASP.NET MVC–Cascading Dropdown Lists Tutorial–Part 5.2: Cascading using jQuery.ajax() ($.ajax() and jQuery Templates)

Karin — Wed, 12 Sep 2012 12:00:34 GMT

You might want to remove this option, as jquery no longer supports the templating plugin

re: ASP.NET MVC–Displaying a tree view using a recursive declarative helper and jQuery

Madhura — Tue, 11 Sep 2012 05:56:02 GMT

Very useful information.. :)

Thanks..:)

re: ASP.NET MVC – Extending the DropDownList to show the items grouped by a category

Cleost — Fri, 31 Aug 2012 18:16:15 GMT

Hi, nice done. Does this sample support data annotation validation? How can I use something like this www.dotnetexpertguide.com/.../cascading-dropdown-knockoutjs-aspnet.html when I select first continent and only then city with groupping by country? Can you help me with it? And what will be if we modify our model like this

public class City

{

public int CityId { get; set; }

public string Name { get; set; }

public int? CountryId { get; set; }

}

I need to try it in my MVC4 solution, but how should I correctly use your sample? Thank you!

re: ASP.NET MVC – Extending the DropDownList to show the items grouped by a category

Chris — Thu, 30 Aug 2012 17:54:42 GMT

Good done! But does it support data annotation validation? And how can I use this solution in my MVC 4 application? Please, help me and sorry for my bad english.

re: ASP.NET MVC–Displaying a tree view using a recursive declarative helper and jQuery

Szymon — Wed, 08 Aug 2012 17:03:31 GMT

I want to made the same treeview as you at following link "demos.raduenuca.ro/.../TreeView" can you send me source code of this ?

re: ASP.NET MVC – Extending the DropDownList to show the items grouped by a category

khumesh — Thu, 12 Jul 2012 09:01:27 GMT

Cool!! Its very nice solution for "DropDownList to show the items grouped by a category" in MVC3, I have used this one, its working fine. Thanks!!