OnDoc/BarcodeLib/UI/Barcodekleber.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Input;

namespace BarcodeLib.UI
{
    public partial class Barcodekleber : Form
    {
        string connecionstring = string.Empty;
        public Barcodekleber()
        {
            InitializeComponent();
        }

        public Barcodekleber(string connectoinstring)
        {
            InitializeComponent();
            this.connecionstring = connectoinstring;
        }


        private void Barcodekleber_Load(object sender, EventArgs e)
        {
            DirectoryInfo d = new DirectoryInfo(Application.StartupPath+ @"\bck"); //Assuming Test is your Folder

            FileInfo[] Files = d.GetFiles("*.frx"); //Getting Text files
            string str = "";

            foreach (FileInfo file in Files)
            {
                this.cbxreportname.Items.Add(file.Name);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            DataSet dataSet = new DataSet();
            dt.Columns.Add("barcode");
            for (int i = 0; i < Convert.ToInt32(textBox1.Text); i++)
            {
                DataRow dr = dt.NewRow();
                string s;
                s = i.ToString();
                while (s.Length < 8) { s = "0" + s; };
                dr[0] = "" + s;
                dt.Rows.Add(dr);
            }
            dataSet.Tables.Add(dt);
            dt.TableName = "Barcodes";
            FastReport.Report report = new FastReport.Report();
            if (System.IO.File.Exists(Application.StartupPath + @"\bck\" + cbxreportname.Text) == true)
            {
                report.Load(Application.StartupPath + @"\bck\" + cbxreportname.Text);
            }
            
            else { }
            report.RegisterData(dataSet);
            report.GetDataSource("Barcodes").Enabled = true;
            report.Preview = previewControl1;
            report.Prepare();
            report.Design();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            DataSet dataSet = new DataSet();
            dt.Columns.Add("barcode");
            for (int i = 0; i < Convert.ToInt32(textBox1.Text); i++)
            {
                DataRow dr = dt.NewRow();
                Database.DB dB = new Database.DB(connecionstring);
                string key = dB.get_dbkey("barcodeetikette");

                string s;

                s = key;
                while (s.Length < 5) { s = "0" + s; };
                s = DateTime.Now.Year.ToString()+s;
                s = s+Helper.DivFnkt.modulo10(s).ToString();
                dr[0] = s;
                dt.Rows.Add(dr);
            }
            dataSet.Tables.Add(dt);
            dt.TableName = "Barcodes";
            FastReport.Report report = new FastReport.Report();
            if (System.IO.File.Exists(Application.StartupPath + @"\bck\" + cbxreportname.Text) == true)
            {
                report.Load(Application.StartupPath + @"\bck\" + cbxreportname.Text);
            }

            else { }
            report.RegisterData(dataSet);
            report.GetDataSource("Barcodes").Enabled = true;
            report.Preview = previewControl1;
            report.Prepare();
            report.ShowPrepared();


        }
    }
}