Asp.net Show Message box after saving the data into db server(sql)

I have a common class and one of my method is this one

using System.Web;
using System.Text;
using System.Web.UI;

/// <summary> 
/// A JavaScript alert 
/// </summary> 
public static class ShowAlertMessage
{

    /// <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,string pageurl)
    {
        // Cleans the message to allow single quotation marks 
        string cleanMessage = message.Replace("'", "\\'");
        string script = "<script type=\"text/javascript\">alert('" + cleanMessage + "');window.location='" + pageurl + "'</script>";

        // 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 allready on the Page 
        if (page != null && !page.ClientScript.IsClientScriptBlockRegistered("alert"))
        {
            page.ClientScript.RegisterClientScriptBlock(typeof(ShowAlertMessage), "alert", script);
        }
    }

    public static void Show(string message)
    {
        // Cleans the message to allow single quotation marks 
        string cleanMessage = message.Replace("'", "\\'");
        string script = "<script type=\"text/javascript\">alert('" + cleanMessage + "');</script>";

        // 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 allready on the Page 
        if (page != null && !page.ClientScript.IsClientScriptBlockRegistered("alert"))
        {
            page.ClientScript.RegisterClientScriptBlock(typeof(ShowAlertMessage), "alert", script);
        }
    }
}

then any time i want to display a message i just call that method from page like this.

ShowAlertMessage.Show("Data has been saved!");

hope that help.

Happy learning :)