text file to list view

kevin bredahl

hi i using visual studio 2010 ultimate c#
i have a problem with showing my text file contetnt in listview.
i have about 200 text files with some client informations in it, each file is 1 client
there are 6 rows. and i want each row in each file to be listet in list view.
my listview is 6 columns .
i want it to look like this

col1	col2	col3	col4	col5	col6
row1	row2	row3	row4	row5	row6

how to do this

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

kevin bredahl12y ago
i have tryed this.

but i says "use of unassigned local variable 'co1 - co6'"

how can i fix that

private void button8_Click(object sender, EventArgs e)
{

string kundesti = @"C:\Kunder\";
try
{
string co1;
string co2;
string co3;
string co4;
string co5;
string co6;
foreach (string dir in Directory.GetFiles(kundesti, "*.txt"))
{
String[] allLines = File.ReadAllLines(dir);
if (allLines.Length > 0)
{
string txtCipherText;
txtCipherText = allLines[0];
string cipherText = txtCipherText.Trim();
string decryptedText = cryptoengine.Decrypt(cipherText, true);
co1 = decryptedText;
}
if (allLines.Length > 1)
{
string txtCipherText;
txtCipherText = allLines[1];
string cipherText = txtCipherText.Trim();
string decryptedText = cryptoengine.Decrypt(cipherText, true);
co2 = decryptedText;
}
if (allLines.Length > 2)
{
string txtCipherText;
txtCipherText = allLines[2];
string cipherText = txtCipherText.Trim();
string decryptedText = cryptoengine.Decrypt(cipherText, true);
co3 = decryptedText;
}
if (allLines.Length > 3)
{
string txtCipherText;
txtCipherText = allLines[3];
string cipherText = txtCipherText.Trim();
string decryptedText = cryptoengine.Decrypt(cipherText, true);
co4 = decryptedText;
}
if (allLines.Length > 4)
{
string txtCipherText;
txtCipherText = allLines[4];
string cipherText = txtCipherText.Trim();
string decryptedText = cryptoengine.Decrypt(cipherText, true);
co5 = decryptedText;
}
if (allLines.Length > 5)
{
string txtCipherText;
txtCipherText = allLines[5];
string cipherText = txtCipherText.Trim();
string decryptedText = cryptoengine.Decrypt(cipherText, true);
co6 = decryptedText;
}
string[] row = { co1, co2, co3, co4, co5, co6};
ListViewItem lvi = new ListViewItem(row);
listView3.Items.Add(lvi);
}
}
catch { }
}
Vulpes12y ago
Suppose all 200 or so of the text file names are stored in a string array called, filePaths. Then you could populate the ListView as follows (Windows Forms assumed):

using System.IO;

//...

listView1.BeginUpdate();

foreach(string filePath in filePaths)
{
string[] rows = File.ReadAllLines(filePath);
ListViewItem lvi = new ListViewItem(rows);
listView1.Items.Add(lvi);
}

listView1.EndUpdate();

EDIT

As you've closed the thread, I can only answer your second post by editing this post.

Anyway, the answer is to initialize your variables to empty strings:

string co1 = "";
string co2 = "";
string co3 = "";
string co4 = "";
string co5 = "";