how can we Create message box using javascript in asp.net

Create message box using javascript:-

Page.ClientScript.RegisterStartupScript(this.GetType(), "ErrorAlert", "alert('Some Technical error!!!');", true);
       

How can we upload file using file upload control in asp.net

With ASP.NET, accepting file uploads from users has become extremely easy. With the FileUpload control, it can be done with a small amount of code lines, as you will see in the following example. However, please notice that there are security concerns to to consider when accepting files from users! Here is the markup required:

<form id="form1" runat="server">
    <asp:FileUpload id="FileUploadControl" runat="server" />
    <asp:Button runat="server" id="UploadButton" text="Upload" 

 onclick="UploadButton_Click" />
    <br /><br />
    <asp:Label runat="server" id="StatusLabel" text="Upload status: " />
</form> 

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insert,update,delete without using store procedure

using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;

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