Message Helper for MVC Application

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);