Query in MS SQL replication

using System;
using System.Windows.Forms;

namespace KAYAN_YAZI
{
    public partial class Form1 : Form
    {
        private int xPos = 0, YPos = 0,Hiz=5;
        public string mode = "SoSa";
        public string mode1 = "Asagi";

        public Form1()
        {
            InitializeComponent();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (mode == "SoSa")
            {
                int ss = -lblMesaj.Width;
                if (this.Width < xPos)
                {
                    xPos= ss;
                    this.lblMesaj.Location = new System.Drawing.Point(xPos, YPos);
                    
                    xPos += Hiz;
                }
                else
                {
                    this.lblMesaj.Location = new System.Drawing.Point(xPos, YPos);
                    xPos += Hiz;
                }
            }
            else if (mode == "SaSo")
            {
                if (xPos < (-lblMesaj.Width))
                {                    
                    this.lblMesaj.Location = new System.Drawing.Point(this.Width, YPos);
                    xPos = this.Width;
                }
                else
                {
                    this.lblMesaj.Location = new System.Drawing.Point(xPos, YPos);
                    xPos -= Hiz;
                }
            }

            if (mode == "Asagi")
            {
                int ss = -lblMesaj.Height;
                if (this.Height < YPos)
                {
                    YPos = ss;
                    this.lblMesaj.Location = new System.Drawing.Point(xPos, YPos);

                    YPos += Hiz;
                }
                else
                {
                    this.lblMesaj.Location = new System.Drawing.Point(xPos, YPos);
                    YPos += Hiz;
                }
            }
            else if(mode == "Yukari")
            {
                if (YPos < (-lblMesaj.Height))
                {
                    this.lblMesaj.Location = new System.Drawing.Point(this.Width, YPos);
                    YPos = this.Height;
                }
                else
                {
                    this.lblMesaj.Location = new System.Drawing.Point(xPos, YPos);
                    YPos -= Hiz;
                }
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            xPos = lblMesaj.Location.X;
            YPos = lblMesaj.Location.Y;
            mode = "SaSo";
            timer1.Start();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            xPos = lblMesaj.Location.X;
            YPos = lblMesaj.Location.Y;
            mode = "SoSa";
            timer1.Start();
        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            Hiz = Convert.ToInt32(comboBox1.Text);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            xPos = lblMesaj.Location.X;
            YPos = lblMesaj.Location.Y;
            mode = "Yukari";
            timer1.Start();
        }

        private void button5_Click(object sender, EventArgs e)
        {
            xPos = lblMesaj.Location.X;
            YPos = lblMesaj.Location.Y;
            mode = "Asagi";
            timer1.Start();            
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (button3.Text== "DUR")
            {
                button3.Text = "DEVAM";
                timer1.Stop();
            }
            else
            {
                button3.Text = "DUR";
                xPos = lblMesaj.Location.X;
                YPos = lblMesaj.Location.Y;                
                timer1.Start();
            }
        }

    }
}