How to create Multiple dynamic Textbox and how to get & save they value into database

Protected void gv_RowCommand(Object sender, GridViewCommandEventArgs e)
  {    
    if(e.CommandName=="Add")
    {
           //add record into database
    }
  }  

Protected void gv_RowCommand(Object sender, GridViewCommandEventArgs e)
  {    
    if(e.CommandName=="Delete")
    {
           //delete record from database or inactive the record in database.
    }
  }  

1. http://www.dotnetspider.com/forum/344645-How-to-save-values-of-dynamic-textboxes-in-database-via-aspnet.aspx
2. http://www.dotnetspider.com/forum/307861-How-save-dynamic-text-box-values-back-end.aspx
3. http://www.dotnetspider.com/resources/750-Dynamically-creating-ASP-NET-controls-from-e-cod.aspx
4. http://www.dotnetspider.com/forum/329862-How-add-keypress-event-textbox-aspnet.aspx

//define a new control class and add it in panel, see below snippet
//Dynamic TextBox Panel

pnlTextBox = new Panel();
pnlTextBox.ID = "pnlTextBox";
pnlTextBox.BorderWidth = 1;
pnlTextBox.Width = 300;
this.form1.Controls.Add(pnlTextBox);

//button with handler
//Button To add TextBoxes
Button btnAddTxt = new Button();
btnAddTxt.ID = "btnAddTxt";
btnAddTxt.Text = "Add TextBox";
btnAddTxt.Click += new System.EventHandler(btnAdd_Click);
this.form1.Controls.Add(btnAddTxt);