Question

I have this Code of Showing all Records to a Message box using string builder. Now i need to populate the Serialnumbers to a data grid view or list view.

Similar in My First Question

I replace message box with this code in adding the records to list:

        private readonly StringBuilder _builder = new StringBuilder().AppendLine();
        Private Dataset _dsdata;

private void SerialVerification()

        {
            // instantiate BAL
            var obj = new BusinessLogic();
            var fin = new Entity { SerialNumber = txtSerialNumber.Text};
            try
            { 
                    try
                    {
                                    //Check if Serial is on DB
                                    _dsdata = obj.SelectSerial(fin);

                                    if (_dsdata.Tables[0].Rows.Count < 1)
                                    {
                                        //Not on DB table then SAVE

                                        try
                                        {   
                                           //Message SAVE ON DB

                                            _i++;
                                            _builder.Append(txtSerialNumber.text).AppendLine();   
                                            lblcount.Text = @"Unit Count:" + _i;

                                        }
                                        catch (Exception ee)
                                        {
                                        }

                                    }
                                    else
                                    {
                                        _dates  Convert.ToDateTime(_dsdata.Tables[0].Rows[0][2].ToString()).ToShortDateString();

                                        if(_dates == DateTime.Today.ToShortDateString())
                                        {

                                           //Check Duplicate
                                        }
                                        else
                                        {
                                           //Message SAVE ON DB
                                            _i++;
                                            _builder.Append(txtSerialNumber.Text).AppendLine();  
       lblcount.Text = @"Unit Count:" + _i;
                                        }
                                    }
                    }
                    catch(Exception ee)
                    {
                    }

                if(_i>0)
                {
                    listView1.Items.Clear();

                    foreach(var a in r)
                    {
                        var listItem = new ListViewItem(_builder.ToString()) ;


                        listView1.Items.Add(listItem);  
                    }

                    //MessageBox.Show(_builder.ToString());


                }
                else
                {

                }

            }
            catch (ApplicationException ex)
            {

            }

        }

It does not creating new line/Row in list view
but just populating only one row. Is there any solution other than using string builder.

Entry of serialnumber:
1
2
3

My list Displays using my sample code:

1
12
123


Correct: 
        1
        2
        3

Thanks in regards..

Answer 1

I got the answer
i replace my code to this:

//private readonly StringBuilder _builder = new StringBuilder().AppendLine(); 
private readonly List<String> _items = new List<string>();

---

 // _builder.Append(fin.SerialNumber).AppendLine();   
      _items.Add(txtSerialNumber.Text);

---

                 listView1.Items.Clear();

                foreach(var item in _items)
                {

                    listView1.Items.Add(item.ToString());

                }