add textbox control from code behind in asp.net

Introduction:

Here i will explain add textbox control from code behind.

Description:

Most of user are directly drag and drop control from toolbox, but here i will explain control add in web page from code behind.

Inside the form you could put a placeholder at the location you want this textbox to appear:

ASPX:

CS:

TextBox txt = new TextBox(); 
txt.Width = 100; 
txt.Height = 100;
holder.Controls.Add(txt);