Display a Confirmation Dialog from Server Side in ASP.NET

    
        function DisplayConfirmationMessage(arg1, arg2) {
            if (confirm("The 1st argument is \"" + arg1 + "\" and the 2nd argument is \"" + arg2 + "\". Do you really want to proceed?")) {
                __doPostBack('', "true");
                return false;
            }
            return false;
        }
    


    
    <div>
        
        
    </div>
    

using System;
using System.Web.UI;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }

    protected override void Render(HtmlTextWriter writer)
    {
        try
        {
            ClientScript.RegisterForEventValidation(linkbtnPerformAction.UniqueID, "true");
            base.Render(writer);
        }
        catch
        {
        }
    }

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        try
        {
            string strArgument1 = "Varun";
            string strArgument2 = "Sood";
            ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "DisplayConfirmationMessage('" + strArgument1 + "', '" + strArgument2 + "');", true);
        }
        catch
        {
        }
    }

    protected void linkbtnPerformAction_Click(object sender, EventArgs e)
    {
        try
        {
            string strConfirmationResult = (this.Request["__EVENTARGUMENT"] == null) ? string.Empty : this.Request["__EVENTARGUMENT"];
            if (strConfirmationResult.Equals("true"))
            {
                Response.Redirect("http://www.google.com", false);
            }
        }
        catch
        {
        }
    }
}