I begin to code with C#and i need to know if we can create a form ( uwp , xaml ,real form) with textbox without using initialize helper (Form designer) inside linQPad ?
Yes, you can. Here's a basic WinForms form.
public class Form1 : Form
private Button Button1 = new Button();
private Label Label1 = new Label();
Button1.Width = 120;
Button1.Height = 20;
Button1.Top = 24;
Button1.Text = "Click Me";
Label1.Width = 120;
Label1.Height = 20;
Label1.Text = "Not Yet Clicked";
You can also do this in VS too.
And to show the form in LINQPad, add the following code to the start of your query: