• Using Visual Studio
• Creating .NET user controls for server interaction
• Creating XSLT if you want UI manipulation

For more basic forms you may want to look at Contour.  It depends on how complex the form logic and UI need to be.  But it's a good starting point.  http://umbraco.org/products/umbraco-contour.

-Chris

Ok...

but I can create a normal html form with javascript ajax methods and post to server data via web service without made usercontrol+dll.

Do you specifically have to use Web Services?

.NET controls are very powerful within Umbraco so here's how I would do it.

• Create a .NET user control with your form layout
• Get values from code-behind and use System.Net.Mail.MailMessage to send email
• Wrap it in a Macro and use it anywhere on the site

Or if you don't need to send email, you could also post the form to another page (internal/external).

I'll use web service as frontend to remote server.

Then,

Do I need to use Visual Studio and not out of the box trick , If I want to made some form?...

The template system/ usercontrol system is pretty open so referring back to your previous comment, you can use standard 

<input> tags and jquery (.ajax method http://api.jquery.com/category/ajax/) to post the form to a webservice. 

As for using a user control without the compiled dll, you can always use it simply as a container for you standard html/jquery code

or if you want code behind execution you can place the server code in a <script runat="server" language="C#"> directly in the source of the control.

<%@ Control Language="C#" ClassName="MyControl" %>

<script runat="server">

   //put server code here

</script>

<div>

<label>First Name</label><asp:TextBox id="txtFirstName" Runat="Server"/>

<label>Last Name</label><asp:TextBox id="txtLastName" Runat="Server"/>

</div>

This is a good solution for small or simple code. But in that situation there isn't separation between layout and code...

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