WebMsgBox class is a
message box for ASP.NET.
Recently, I needed a
Windows MessageBox like class for ASP.NET. Doing some search on Google, I found
some code for message box in VB.NET and converted code from VB.NET to C# and
made some changes. Unfortunately, I forgot the URL where I found the code.
WebMsgBox Class
WebMsgBox class
represents a message box for ASP.NET applications. This class has a static
method Show, which is used to display a message box. The Show method takes a
single argument of string type, which is the message you want to display.
using System;
using Microsoft.VisualBasic;
using System.Text;
using System.Collections;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace TestWebMsgApp
{
public class WebMsgBox
{
protected static Hashtable
handlerPages = new Hashtable();
private WebMsgBox()
{
}
public static void Show(string Message)
{
if (!(handlerPages.Contains(HttpContext.Current.Handler)))
{
Page
currentPage = (Page)HttpContext.Current.Handler;
if (!((currentPage == null)))
{
Queue
messageQueue = new Queue();
messageQueue.Enqueue(Message);
handlerPages.Add(HttpContext.Current.Handler,
messageQueue);
currentPage.Unload += new EventHandler(CurrentPageUnload);
}
}
else
{
Queue
queue = ((Queue)(handlerPages[HttpContext.Current.Handler]));
queue.Enqueue(Message);
}
}
private static void CurrentPageUnload(object sender,
EventArgs e)
{
Queue
queue = ((Queue)(handlerPages[HttpContext.Current.Handler]));
if (queue != null)
{
StringBuilder
builder = new StringBuilder();
int iMsgCount = queue.Count;
builder.Append("");
handlerPages.Remove(HttpContext.Current.Handler);
HttpContext.Current.Response.Write(builder.ToString());
}
}
}
}
How to use WebMsgBox?
If you want to display
a message box on a button click, add the following code to the button click
event handler.
WebMsgBox.Show("Your message here");
