Could you convert the code into C# only methods (not the design part)

/*
 * ClusterForm.java
 *
 * Created on September 20, 2010, 2:53 PM
 */
package ctrend;
import javax.swing.*;
import java.awt.*;
import java.util.*;
/**
 *
 * @author  Raja
 */
public class ClusterForm extends javax.swing.JFrame {
    /** Creates new form ClusterForm */
    FlowLayout layout=new FlowLayout();
    DataSet ds;
    ArrayList<String>coldata;
    ClusterBean cbean;
    public ClusterForm() {
        initComponents();
     ds=new DataSet();
     coldata=ds.loadFields();
     cmbColNames.removeAllItems();
     for(int i=0;i<coldata.size();i++)
         cmbColNames.addItem(coldata.get(i).toUpperCase());
    }
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
    private void initComponents() {
        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        cmbColNames = new javax.swing.JComboBox();
        butSubmit = new javax.swing.JButton();
        butShowTimePeriods = new javax.swing.JButton();
        butShowGraph = new javax.swing.JButton();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        jLabel1.setFont(new java.awt.Font("Tahoma", 1, 11));
        jLabel1.setText("Select Time Related Field");
        butSubmit.setText("Submit");
        butSubmit.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                butSubmitActionPerformed(evt);
            }
        });
        butShowTimePeriods.setText("Show Time Periods");
        butShowTimePeriods.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                butShowTimePeriodsActionPerformed(evt);
            }
        });
        butShowGraph.setText("Show Graph");
        butShowGraph.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                butShowGraphActionPerformed(evt);
            }
        });
        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jLabel1)
                        .addContainerGap(745, Short.MAX_VALUE))
                    .addComponent(butSubmit)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(cmbColNames, javax.swing.GroupLayout.PREFERRED_SIZE, 125, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addContainerGap(762, Short.MAX_VALUE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(butShowTimePeriods)
                        .addContainerGap(766, Short.MAX_VALUE))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(butShowGraph)
                        .addContainerGap(796, Short.MAX_VALUE))))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(cmbColNames, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(8, 8, 8)
                .addComponent(butSubmit)
                .addGap(15, 15, 15)
                .addComponent(butShowTimePeriods)
                .addGap(17, 17, 17)
                .addComponent(butShowGraph)
                .addContainerGap(70, Short.MAX_VALUE))
        );
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(278, Short.MAX_VALUE))
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents
    private void butShowGraphActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_butShowGraphActionPerformed
        buildGraph();
        GraphPanel.tp=cbean.tp;
        System.out.println("TP SIZE:"+cbean.tp.size());
        JFrame frm=new JFrame();
        frm.setTitle("C-TREND Temporal Graph Model");
        frm.setBackground(Color.black);
        GraphPanel gp=new GraphPanel();
        frm.add(gp);
        frm.setSize(800,600);
        frm.setVisible(true);
        frm.setDefaultCloseOperation(frm.DISPOSE_ON_CLOSE);
    }//GEN-LAST:event_butShowGraphActionPerformed
    private void butShowTimePeriodsActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_butShowTimePeriodsActionPerformed
        for(int i=0;i<cbean.tp.size();i++)
        {
            TimePeriod curtp=cbean.tp.get(i);
            curtp.findMedioids();
            curtp.showMedioids();
        }
    }//GEN-LAST:event_butShowTimePeriodsActionPerformed
    public void buildGraph()
    {
        int row,col;
        col=100;
        for(int i=0;i<cbean.tp.size();i++)
        {
            TimePeriod curtp=cbean.tp.get(i);
            row=50;
            for(int j=0;j<curtp.centroids.size();j++,row+=100)
            {
                DataObject curcentroid=curtp.centroids.get(j);
                curcentroid.xc=col;
                curcentroid.yc=row;
                System.out.println(curcentroid.xc+","+curcentroid.yc);
            }
            col+=400;
        }
    }
    private void butSubmitActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_butSubmitActionPerformed
    try
    {
        DataSet ds=new DataSet();
        int colidx=cmbColNames.getSelectedIndex();
        System.out.println("Selected Idx:"+colidx);
        ds.buildTables();
        cbean=new ClusterBean();
        cbean.buildClusters(colidx);
        //ds.loadField(colidx);
    }catch(Exception e)
    {
        e.printStackTrace();
        JOptionPane.showMessageDialog(null,e.toString());
    }
    }//GEN-LAST:event_butSubmitActionPerformed
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new ClusterForm().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton butShowGraph;
    private javax.swing.JButton butShowTimePeriods;
    private javax.swing.JButton butSubmit;
    private javax.swing.JComboBox cmbColNames;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    // End of variables declaration//GEN-END:variables
}