Listview doesn't work perfectly!

Codes are here,I am trying to access with order in text.My real problem here is liste

private void Read_File(int year1, int month1, int day1, int year2, int month2, int day2)
{

int i = -1, day, month, year;
listView1.Items.Clear();
string str="";
string[] s = new string[100];
string[] split, split1;
//sr.Close();
sr = File.OpenText(filePath);
//StreamReader sr = new StreamReader(filePath);
//str = sr.ReadLine();
//richTextBox1.AppendText(str);
// richTextBox1.Text = str;


do
{
i++;
s[i] = sr.ReadLine();
} while (s[i] != null);
sr.Close();



for (int k = 0; k < i-1; k++)
{
str = "";
split = s[k].Split(' ');

for (int j = 0; j < split.Length; j++)
{
str = str + split[j];
}

split = str.Split('_'); //*****//

split1 = split[0].Split(':');

day = Int32.Parse(split1[0]);
month = Int32.Parse(split1[1]);
year = Int32.Parse(split1[2]);


if (year >= year1 && year <= year2)
if (month >= month1 && month <= month2)
if (day >= day1 && day <= day2)
{

richTextBox1.AppendText(s[k] + "\n");
liste[k].Text = split[0] + " / " + split[2];
liste[k].SubItems.Add(split[4]);
liste[k].SubItems.Add(split[8]);
liste[k].SubItems.Add(split[12]);
listView2.Items.Add(liste[k]);

}

}
//listView2.Items.Add(liste[0]);
//listView2.Items.AddRange(liste);


}