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Message Helper for MVC Application

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Message Helper for MVC Application



public static class MessageExtensions
{

public enum MessageType
{
Success = 0,
Info = 1,
Warning = 2,
Error = 3
}


public static void ShowMessage(this Controller controller, MessageType messageType, string message, bool showAfterRedirect = false)
{
string messageTypeKey = messageType.ToString();
if (showAfterRedirect)
{
controller.TempData[messageTypeKey] = message;
}
else
{
controller.ViewData[messageTypeKey] = message;
}
}


public static HtmlString RenderMessages(this HtmlHelper htmlHelper, bool clearMessage = true)
{
string messages = String.Empty;
foreach (string messageType in Enum.GetNames(typeof(MessageType)))
{

object message = htmlHelper.ViewContext.ViewData.ContainsKey(messageType)
? htmlHelper.ViewContext.ViewData[messageType]
: htmlHelper.ViewContext.TempData.ContainsKey(messageType)
? htmlHelper.ViewContext.TempData[messageType]
: null;
if (message != null)
{
string _class = string.Empty;
var spanTag = new TagBuilder("span");
if (messageType == MessageType.Success.ToString())
{
//_class = "success";
_class = "alert-success";
//spanTag.SetInnerText("Success! ");
}
else if (messageType == MessageType.Error.ToString())
{
//_class = "error";
_class = "alert-danger";
// spanTag.SetInnerText("Error! ");
}
else if (messageType == MessageType.Info.ToString())
{
_class = "information";
// spanTag.SetInnerText("Information! ");
}
else if (messageType == MessageType.Warning.ToString())
{
//_class = "warning";
_class = "alert-warning";
//spanTag.SetInnerText("Warning! ");
}

var messageBoxBuilder = new TagBuilder("div");
messageBoxBuilder.Attributes["onclick"] = "$(this).fadeOut(3000)";
messageBoxBuilder.AddCssClass(string.Format("msg {0}", _class));
string close = "<a class='notification-close' href='javascript:'>×</a>";
messageBoxBuilder.InnerHtml = spanTag + message.ToString() + close;
messages += messageBoxBuilder.ToString();
ClearMessages(htmlHelper, messageType);
}
}
return MvcHtmlString.Create(messages);
}


private static void ClearMessages(HtmlHelper htmlHelper, string messageType)
{
htmlHelper.ViewContext.ViewData[messageType] = htmlHelper.ViewContext.TempData[messageType] = null;
}
}



How to use this Message Helper

1. Add this in you view

@Html.RenderMessages(true)

2.Set message from controller

ShowMessage(MessageExtensions.MessageType.Error, "Mail has not been sent.", true);



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