Javascript Alert in C#

/// <summary>

/// A JavaScript alert

/// </summary>

public static class Alert

{

/// <summary>

/// Shows a client-side JavaScript alert in the browser.
/// </summary>
/// <param name="message">The message to appear in the alert.</param>

public static void Show(string message)

{

// Cleans the message to allow single quotation marks

string cleanMessage = message.Replace("'", "\\'");
string script = string.Format("<script type=\"text/javascript\">$(document).ready(function(){alert('{0}');});</script>", cleanMessage);
// Gets the executing web page
Page page = HttpContext.Current.CurrentHandler as Page;
// Checks if the handler is a Page and that the script isn't all ready on the Page
if (page != null && !page.ClientScript.IsClientScriptBlockRegistered("alert"))
{
page.ClientScript.RegisterClientScriptBlock(typeof(Alert), "alert", script);
}
}
}