How to create user control in C# .Net

I assume you meant to say this is ASP.NET ?

You just put the controls inside your user control. Then you create properties inside the user control class, which map to the properties of the controls, such as

<pre>public string TextBoxText
{
get { return TextBox1.Text; }
set { TextBox1.Text = value; }
}</pre>
Then you can set TextBoxText in your aspx, or you can access the properties in your code behind.