public static class?

Question

Im new to c sharp so am creating simple things to learn.
i know using global variables bad and have been led towards using a static class? attached is all the code. I get an error saying  The type or namespace name 'Ball1' could not be found (are you missing a using directive or an assembly reference?) so im guessing im using this wrong but I cant see how. i've spent a couple hours looking at tutorials and the code seems right so i can only guess i've put something in the wrong place?
Any help would be greatly apreciated

 

 
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
class Ball
{
public static int xpos;
public static int ypos;
public static int xdir;
public static int ydir;
public static int speed;
}
namespace Balls
{
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Timer TheTicker;
private System.Windows.Forms.Button btnBall;
private System.Windows.Forms.Label varDirection;
private System.Windows.Forms.Label varDirectionY;
private System.ComponentModel.IContainer components;
public Form1()
{
InitializeComponent();
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null) 
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.TheTicker = new System.Windows.Forms.Timer(this.components);
this.btnBall = new System.Windows.Forms.Button();
this.varDirection = new System.Windows.Forms.Label();
this.varDirectionY = new System.Windows.Forms.Label();
this.SuspendLayout();
// 
// TheTicker
// 
this.TheTicker.Enabled = true;
this.TheTicker.Interval = 1;
this.TheTicker.Tick += new System.EventHandler(this.TheTicker_Tick);
// 
// btnBall
// 
this.btnBall.Location = new System.Drawing.Point(288, 192);
this.btnBall.Name = "btnBall";
this.btnBall.Size = new System.Drawing.Size(50, 50);
this.btnBall.TabIndex = 0;
this.btnBall.Text = "Press Me";
this.btnBall.Click += new System.EventHandler(this.btnBall_Click);
// 
// varDirection
// 
this.varDirection.Location = new System.Drawing.Point(616, 0);
this.varDirection.Name = "varDirection";
this.varDirection.Size = new System.Drawing.Size(8, 16);
this.varDirection.TabIndex = 1;
this.varDirection.Text = "label1";
// 
// varDirectionY
// 
this.varDirectionY.Location = new System.Drawing.Point(624, 0);
this.varDirectionY.Name = "varDirectionY";
this.varDirectionY.Size = new System.Drawing.Size(8, 16);
this.varDirectionY.TabIndex = 2;
this.varDirectionY.Text = "label1";
// 
// Form1
// 
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(632, 446);
this.Controls.Add(this.varDirectionY);
this.Controls.Add(this.varDirection);
this.Controls.Add(this.btnBall);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
 
[STAThread]
static void Main() 
{
Application.Run(new Form1());
Ball Ball1 = new Ball();
Ball1.xpos = 300;
Ball1.ypos = 200;
Ball1.speed = 5;
Ball1.xdir = 1;
Ball1.xdir = 1;
}
private void TheTicker_Tick(object sender, System.EventArgs e)
{
int BallSpeed = 5;
int xpos = btnBall.Location.X;
int ypos = btnBall.Location.Y;
#region checkball
#region checkX

//check x
if (Ball1.xdir == 1) 
{
//check to see if edge of screen
if (Ball1.xpos + 50 > this.Width) 
{
Ball1.xpos -= Ball1.speed;
Ball1.xdir = 0;
}
else 
{
Ball1.xpos += Ball1.speed;
}
}
else
{
//check to see if edge of screen
if (xpos < 0) 
{
xpos += BallSpeed;
varDirection.Text = "+";
}
else 
{
xpos -= BallSpeed;
}
}
#endregion
#region checky
//checky
if (varDirectionY.Text == "+") 
{
//check to see if edge of screen
if (ypos + 50 >= this.Height) 
{
ypos -= BallSpeed;
varDirectionY.Text = "-";
}
else 
{
ypos += BallSpeed;
}
}
else
{
//check to see if edge of screen
if (ypos <= 0) 
{
ypos += BallSpeed;
varDirectionY.Text = "+";
}
else 
{
ypos -= BallSpeed;
}
}
#endregion
#endregion
 
btnBall.Location = new Point(xpos, ypos);
}
private void btnBall_Click(object sender, System.EventArgs e)
{

}
}
}