Few C# Questions.

[xEnt]

Well im from VB and im new to C# i just have a few questions.

1. How is the If's else's etc done in C#? In VB it would be like

If Textbox1.Text = "Hello" Then
Form1.Textbox2.Text = "Hi!"
Else
Form1.Textbox2.Text = "Bye"
End If

2. How are varibles done? In VB it would be

Dim R As String
R = "Radio"

Form1.Textbox1.Text = R

3. Hows would the syntax be for adding 2 textbox's values togetha (if they both had integers in them.

In VB its

TextBox1 = int(Textbox2.Text + int(Textbox3.Text))


4. How do i hide a form and show another one. In VB its like

Form1.Hide
Form2.Show


Please if you know please post. It would help me alot. Thanks.