Mine

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Interventi.Business;

namespace Interventi.Client.Forms
{
    public partial class frmClienti : Form
    {
        clsClienti clsClienti = new clsClienti();

        public frmClienti()
        {
            InitializeComponent();
        }

        private void PopolaCampi()
        {
            txtSEVIA.Text = dgvSEDI.SelectedRows[0].Cells[5].Value.ToString();
            txtSECAP.Text = dgvSEDI.SelectedRows[0].Cells[6].Value.ToString();
            txtSECOMU.Text = dgvSEDI.SelectedRows[0].Cells[7].Value.ToString();
            txtSEPROV.Text = dgvSEDI.SelectedRows[0].Cells[8].Value.ToString();
            txtSETEL1.Text = dgvSEDI.SelectedRows[0].Cells[9].Value.ToString();
            txtSETEL2.Text = dgvSEDI.SelectedRows[0].Cells[10].Value.ToString();
            txtSEFAX.Text = dgvSEDI.SelectedRows[0].Cells[11].Value.ToString();
            txtSEPERS.Text = dgvSEDI.SelectedRows[0].Cells[12].Value.ToString();
            txtSEPERC.Text = dgvSEDI.SelectedRows[0].Cells[13].Value.ToString();
            txtSEPERM.Text = dgvSEDI.SelectedRows[0].Cells[14].Value.ToString();
        }

        private void CreaArraydiTextBox(TextBox[] txtTextBox)
        {
            //UTCOD
            //CLULMO
            txtTextBox.SetValue(txtCLCOD, 0);
            txtTextBox.SetValue(txtCLRAGS, 1);
            txtTextBox.SetValue(txtCLPIVA, 2);
            //ISCOD
            txtTextBox.SetValue(txtCLVIA, 3);
            txtTextBox.SetValue(txtCLCAP, 4);
            txtTextBox.SetValue(txtCLCOMU, 5);
            txtTextBox.SetValue(txtCLPROV, 6);
            txtTextBox.SetValue(txtCLTEL1, 7);
            txtTextBox.SetValue(txtCLTEL2, 8);
            txtTextBox.SetValue(txtCLFAX, 9);
            txtTextBox.SetValue(txtCLWWW, 10);
            txtTextBox.SetValue(txtCLMAIL, 11);
            txtTextBox.SetValue(txtCLPERS, 12);
            txtTextBox.SetValue(txtCLPERC, 13);
            txtTextBox.SetValue(txtCLPERM, 14);
            //TPCOD
            //PGCOD
            //SSCOD
            txtTextBox.SetValue(txtCLNOTE, 15);
        }

        private void CreaArraydiCombo(ComboBox[] cboCombo)
        {
            cboCombo.SetValue(cboTPCOD, 0);
            cboCombo.SetValue(cboSSCOD, 1);
            cboCombo.SetValue(cboPGCOD, 2);
        }

        private void toolStripButton7_Click(object sender, EventArgs e)
        {

            this.Close();
            
        }

        private void toolStripButton5_Click(object sender, EventArgs e)
        {
            frmClientiRic frmClRic = new frmClientiRic();
            frmClRic.ShowDialog();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            frmComuni frmComuni = new frmComuni();
            frmComuni.ShowDialog();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            frmComuni frmComuni = new frmComuni();
            frmComuni.ShowDialog();
        }

        private void cLPROVTextBox_TextChanged(object sender, EventArgs e)
        {

        }

        private void frmClienti_Load(object sender, EventArgs e)
        {
            ComboBox[] cboCombo = new ComboBox[3];
            CreaArraydiCombo(cboCombo);
            clsClienti.PopolaCombo(cboCombo);
            txtCLCOD.Focus();

            clsClienti.InizializiaGrid(dgvSEDI);

        }

        private void txtCLCOD_Leave(object sender, EventArgs e)
        {
            bool blnRicerca;
            TextBox[] txtTextBox = new TextBox[16];
            ComboBox[] cbocombo = new ComboBox[3];
            
            txtCLCOD.Text = txtCLCOD.Text.Trim().ToUpper();
            if (txtCLCOD.Text.Trim() != "")
            { 
                blnRicerca = clsClienti.EseguiRicerca(txtCLCOD.Text.Trim().ToUpper());
                if (blnRicerca == true)
                {
                    CreaArraydiTextBox(txtTextBox);
                    CreaArraydiCombo(cbocombo);
                    clsClienti.PopolaCampi(txtTextBox);
                    clsClienti.SettaCombo(cbocombo, txtCLCOD.Text.Trim().ToUpper());
                    clsClienti.PopolaSedi(dgvSEDI, txtCLCOD.Text.Trim().ToUpper());
                    if (dgvSEDI.Rows.Count >= 1)
                    {
                        PopolaCampi();
                    }

                }
            }
            
            
        }

        private void button3_Click(object sender, EventArgs e)
        {
            frmClientiTipo frmTPCli = new frmClientiTipo();
            frmTPCli.ShowDialog();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            frmTecnici frmTecnici = new frmTecnici();
            frmTecnici.ShowDialog();
        }

        private void button5_Click(object sender, EventArgs e)
        {
            FrmModPag frmModPag = new FrmModPag();
            frmModPag.ShowDialog();
        }

        private void dgvSEDI_SelectionChanged(object sender, EventArgs e)
        {
            //se non imposto questo if ogni volta che al load la clsasse clsutenti nasconde una colonna parte questo evento
            
            if (dgvSEDI.Rows.Count > 1 & dgvSEDI.Columns[0].Visible == false)
            
            {
                
                PopolaCampi();
            }
             
        }
    }
}












using System;
using System.Collections.Generic;
using System.Data;
using System.Windows.Forms;
using Interventi.Data;
using Interventi.Data.dsInterventiTableAdapters;

namespace Interventi.Business
{
    public class clsClienti
    {
        dsInterventi dsInterventi = new dsInterventi();
        CLIENTITableAdapter taClienti = new CLIENTITableAdapter();
        BindingSource bdnClienti = new BindingSource();
        BindingSource bdnSedi = new BindingSource();
        TPCLITableAdapter taTPcli = new TPCLITableAdapter();
        SYSTEMTableAdapter taSystem = new SYSTEMTableAdapter();
        MODPAGTableAdapter taModPag = new MODPAGTableAdapter();
        SEDETableAdapter taSede = new SEDETableAdapter();

        public void InizializiaGrid(DataGridView DGV)
        {
            taSede.FillByCLCOD(dsInterventi.SEDE, "");
            bdnSedi.DataSource = dsInterventi;
            bdnSedi.DataMember = "SEDE";
            DGV.DataSource = bdnSedi;
            
            /*
            UTCOD
            SEULMO
            SEPROG
            CLCOD
            ISCOD
            SEVIA
            SECAP
            SECOMU
            SEPROV
            SETEL1
            SETEL2
            SEFAX
            SEPERS
            SEPERC
            SEPERM
            */

            DGV.Columns["UTCOD"].Visible = false;
            DGV.Columns["SEULMO"].Visible = false;
            DGV.Columns["SEPROG"].Visible = false;
            DGV.Columns["CLCOD"].Visible = false;
            DGV.Columns["ISCOD"].Visible = false;
            DGV.Columns["CLCOD"].Visible = false;
            DGV.Columns["SETEL1"].Visible = false;
            DGV.Columns["SETEL2"].Visible = false;
            DGV.Columns["SEFAX"].Visible = false;
            DGV.Columns["SEPERS"].Visible = false;
            DGV.Columns["SEPERC"].Visible = false;
            DGV.Columns["SEPERM"].Visible = false;
            
            DGV.Columns["SEVIA"].Width = 250;
            DGV.Columns["SEVIA"].HeaderText = "Via";
            DGV.Columns["SECAP"].Width = 50;
            DGV.Columns["SECAP"].HeaderText = "CAP";
            DGV.Columns["SECOMU"].Width = 100;
            DGV.Columns["SECOMU"].HeaderText = "Comune";
            DGV.Columns["SEPROV"].Width = 40;
            DGV.Columns["SEPROV"].HeaderText = "Prov";
        }

        public bool EseguiRicerca(string strCLCOD)
        {
            taClienti.FillByclCod(dsInterventi.CLIENTI, strCLCOD);
            if (dsInterventi.CLIENTI.Rows.Count > 0) return true;
            else return false;
        }

        public void PopolaCombo(ComboBox[] cboCombo)
        {
            taTPcli.Fill(dsInterventi.TPCLI);
            DataTableReader dtrTPCli = new DataTableReader(dsInterventi.TPCLI);
            //dtrTPCli.Read();
            cboCombo[0].Items.Add("Selezionare un Tipo Cliente..");
            while (dtrTPCli.Read())
            {
                clsCombo combo = new clsCombo();
                combo.Add(dtrTPCli[3].ToString(), dtrTPCli[2].ToString());
                cboCombo[0].Items.Add(combo);   
            }
            cboCombo[0].SelectedIndex = 0;

            taSystem.Fill(dsInterventi.SYSTEM);
            DataTableReader dtrSystem = new DataTableReader(dsInterventi.SYSTEM);
            cboCombo[1].Items.Add("Selezionare un Tecnico..");
            while (dtrSystem.Read())
            {
                clsCombo combo = new clsCombo();
                combo.Add(dtrSystem[3].ToString() + " " + dtrSystem[4].ToString(),dtrSystem[2].ToString());
                cboCombo[1].Items.Add(combo);
            }
            cboCombo[1].SelectedIndex = 0;

            taModPag.Fill(dsInterventi.MODPAG);
            DataTableReader dstModPag = new DataTableReader(dsInterventi.MODPAG);
            cboCombo[2].Items.Add("Selezionare una Modalità di Pagamento..");
            while (dstModPag.Read())
            {
                clsCombo combo = new clsCombo();
                combo.Add(dstModPag[3].ToString(), dstModPag[2].ToString());
                cboCombo[2].Items.Add(combo);
            }
            cboCombo[2].SelectedIndex = 0;


            
        }

        public void SettaCombo(ComboBox[] cboCombo,  string strCLCOD)
        {
            //taClienti.FillByclCod(dsInterventi.CLIENTI, strCLCOD);
            dsInterventi.CLIENTIRow rowCliente;
            rowCliente = dsInterventi.CLIENTI.FindByCLCOD(strCLCOD);

            if (cboCombo[0].Items.Count > 0)
            {
                for (int i = 1; i < cboCombo[0].Items.Count; i++)
                {
                    if (rowCliente.TPCOD == ((clsCombo)cboCombo[0].Items[i]).strNomeColnna)
                    {
                        cboCombo[0].SelectedIndex = i;
                        break;
                    }
                }
            }
            
            if (cboCombo[1].Items.Count > 0)
            {
                for (int i = 1; i < cboCombo[1].Items.Count; i++)
                {
                    if (rowCliente.SSCOD == ((clsCombo)cboCombo[1].Items[i]).strNomeColnna)
                    {
                        cboCombo[1].SelectedIndex = i;
                        break;
                    }
                }
            }

            if (cboCombo[2].Items.Count > 0)
            {
                for (int i = 1; i < cboCombo[2].Items.Count; i++)
                {
                    if (rowCliente.PGCOD == ((clsCombo)cboCombo[2].Items[i]).strNomeColnna)
                    {
                        cboCombo[2].SelectedIndex = i;
                        break;
                    }
                }
            }
        }

        public void PopolaCampi(TextBox[] txtTextbox)
        {
            dsInterventi.CLIENTIRow rowCliente;
            rowCliente = dsInterventi.CLIENTI.FindByCLCOD(txtTextbox[0].Text);
            
            txtTextbox[0].Enabled = false;
            txtTextbox[1].Text = rowCliente.CLRAGS;
            txtTextbox[2].Text = rowCliente.CLPIVA;
            txtTextbox[3].Text = rowCliente.CLVIA;
            txtTextbox[4].Text = rowCliente.CLCAP;
            txtTextbox[5].Text = rowCliente.CLCOMU;
            txtTextbox[6].Text = rowCliente.CLPROV;
            txtTextbox[7].Text = rowCliente.CLTEL1;
            txtTextbox[8].Text = rowCliente.CLTEL2;
            txtTextbox[9].Text = rowCliente.CLFAX;
            txtTextbox[10].Text = rowCliente.CLWWW;
            txtTextbox[11].Text = rowCliente.CLMAIL;
            txtTextbox[12].Text = rowCliente.CLPERS;
            txtTextbox[13].Text = rowCliente.CLPERC;
            txtTextbox[14].Text = rowCliente.CLPERM;
            txtTextbox[15].Text = rowCliente.CLNOTE;
            



            //DataTableReader dtrUtenti = new DataTableReader(dsInterventi.UTENTI);
            //dtrUtenti.Read();


        }

        public void PopolaSedi(DataGridView DGV, string strUTCOD)
        {
            try
            {
                if (DGV.DataSource == null) InizializiaGrid(DGV);
                taSede.FillByCLCOD(dsInterventi.SEDE, strUTCOD);
            }
            catch (Exception e)
            {
                throw new System.ArgumentException(e.Message.ToString(), "clsClienti PopolaGrid");
            }
        }

  

    }
}