Submit Operation From Web Part Dynamic Creation of Control

using System;

using System.ComponentModel;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Serialization;

using Microsoft.SharePoint;

using Microsoft.SharePoint.WebControls;

using Microsoft.SharePoint.Utilities;

namespace EUDGridView.CustomEmployeeSubmittWebPart

{

    [ToolboxItemAttribute(false)]

    public class CustomEmployeeSubmittWebPart : WebPart

    {

        TextBox oTextTitle;

        TextBox oTextName;

        TextBox oTextDesignation;

        Label oLabelMessage;

        Button oButtonSubmit;

        protected override void CreateChildControls()

        {

            base.CreateChildControls();

            oTextTitle = new TextBox();

            this.Controls.Add(oTextTitle);

            oTextName = new TextBox();

            this.Controls.Add(oTextName);

            oTextDesignation = new TextBox();

            this.Controls.Add(oTextDesignation);

            oLabelMessage = new Label();

            this.Controls.Add(oLabelMessage);

            oButtonSubmit = new Button();

            oButtonSubmit.Text = "Submit";

            oButtonSubmit.CssClass = "ms-ButtonHeightWidth";

            this.Controls.Add(oButtonSubmit);

            oButtonSubmit.Click += new EventHandler(oButtonSubmit_Click);

        }

        void oButtonSubmit_Click(object sender, EventArgs e)

        {

            if (oTextTitle.Text.Trim() == "" || oTextName.Text.Trim() == "" || oTextDesignation.Text.Trim() == "")

            {

                   SPUtility.TransferToSuccessPage("You must specify a value for this required field");

                //oLabelMessage.Text = "You must specify a value for this required field";

            }

            else

            {

                SPSite mySite = SPContext.Current.Site;

                SPWeb myWeb = SPContext.Current.Web;

                SPList myList = myWeb.Lists["Custom List"];

                SPListItem myListItem = myList.Items.Add();

                myListItem["Title"] = oTextTitle.Text.ToString();

                myListItem["Employee Name"] = oTextName.Text.ToString();

                myListItem["Designation"] = oTextDesignation.Text.ToString();

                myWeb.AllowUnsafeUpdates = true;

                myListItem.Update();

                myWeb.AllowUnsafeUpdates = false;

                oTextTitle.Text = String.Empty;

                oTextName.Text = String.Empty;

                oTextDesignation.Text = String.Empty;

                SPUtility.TransferToSuccessPage("Recorded inserted");

                //oLabelMessage.Text = "Recorded inserted";

            }

        }

    }

}