RG-3 RG-3 - 4 months ago 67
Javascript Question

JavaScript: Alert.Show(message) From ASP.NET Code-behind

I am reading this JavaScript: Alert.Show(message) From ASP.NET Code-behind

I am trying to implement the same. So I created a static class like this:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.Data.SqlClient;
using System.Web;
using System.Text;
using System.Web.UI;

namespace Registration.DataAccess
{
public static class Repository
{
/// <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 = "<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(Alert), "alert", script);
}
}
}
}


On this line:

string script = "<script type="text/javascript">alert('" + cleanMessage + "');</script>";


It is showing me err: ; Expected

And also on

page.ClientScript.RegisterClientScriptBlock(typeof(Alert), "alert", script);


Err: The type or namespace name 'Alert' could not be found (are you missing a using directive or an assembly reference?)

What I am doing wrong here?

Answer

Here is an easy way:

Response.Write("<script>alert('Hello');</script>");