Asp.Net Mvc action selector – with list support [REPOST]

Here is my updated AcceptParameterAttribute class with support for data bound lists:

	/// <summary>
	/// ActionMethodSelector to enable submit buttons to execute specific action methods.
	/// </summary>
	public class AcceptParameterAttribute : ActionMethodSelectorAttribute
	{
	/// <summary>
	/// Gets or sets the value to use in submit button to identify which method to select. This must be unique in each controller.
	/// </summary>
	public string Action { get; set; }
	/// <summary>
	/// Gets or sets the regular expression to match the action.
	/// </summary>
	public string ActionRegex { get; set; }
	/// <summary>
	/// Determines whether the action method selection is valid for the specified controller context.
	/// </summary>
	/// <param name="controllerContext">The controller context.</param>
	/// <param name="methodInfo">Information about the action method.</param>
	/// <returns>true if the action method selection is valid for the specified controller context; otherwise, false.</returns>
	public override bool IsValidForRequest(ControllerContext controllerContext, MethodInfo methodInfo)
	{
	if (controllerContext == null)
	{
	throw new ArgumentNullException("controllerContext");
	}
	var req = controllerContext.RequestContext.HttpContext.Request.Form.AllKeys.Any() ? controllerContext.RequestContext.HttpContext.Request.Form : controllerContext.RequestContext.HttpContext.Request.QueryString;
	if (!string.IsNullOrEmpty(this.ActionRegex))
	{
	foreach (var key in req.AllKeys.Where(k => k.StartsWith(Action, true, System.Threading.Thread.CurrentThread.CurrentCulture)))
	{
	if (key.Contains(":"))
	{
	if (key.Split(':').Count() == this.ActionRegex.Split(':').Count())
	{
	bool match = false;
	for (int i = 0; i < key.Split(':').Count(); i++)
	{
	if (Regex.IsMatch(key.Split(':')[0], this.ActionRegex.Split(':')[0]))
	{
	match = true;
	}
	else
	{
	match = false;
	break;
	}
	}
	if (match)
	{
	return !string.IsNullOrEmpty(req[key]);
	}
	}
	}
	else
	{
	if (Regex.IsMatch(key, this.Action + this.ActionRegex))
	{
	return !string.IsNullOrEmpty(req[key]);
	}
	}
	}
	return false;
	}
	else
	{
	return req.AllKeys.Contains(this.Action);
	}
	}
	}

view raw gistfile1.cs hosted with ❤ by GitHub

some sample code to use this updated version:

decorate the action with something like:

	[AcceptParameter(Action = "DeleteSlot", ActionRegex = "DeleteSlot:[a-zA-Z0-9]{1,4}")]
	public ActionResult Index_DeleteSlot(EventScheduleTabViewModel model){
	...
	}

view raw gistfile1.cs hosted with ❤ by GitHub

and then the buttons in the list can have the following format for the name:

<input type="submit" value="delete" name='DeleteSlot:@slot.Id' />

view raw gistfile1.html hosted with ❤ by GitHub

hth