saving data from datagrid c# - datagrid

Question

hi guys i am new to c# and i was making a text editor program using data grid view. The problem is when i open a text file to my data grid, then when i press save i get the error saying "Index was outside the bounds of the array". I included my code below. Any suggestions can be a big help for me. I included my code below.
// edit file button
dataGridView1.Columns.Add("colname", "Question");
dataGridView1.Columns.Add("colname", "Answer 1");
dataGridView1.Columns.Add("colname", "Answer 2");
dataGridView1.Columns.Add("colname", "Answer 3");
dataGridView1.Columns.Add("colname", "Answer 4");
dataGridView1.Columns.Add("colname", "Correct Answer");
dataGridView1.Columns[5].ReadOnly = true;
dataGridView1.Columns[5].DefaultCellStyle.BackColor = Color.DimGray;
dataGridView1.AllowUserToAddRows = true;
StreamReader sr = new StreamReader(fName);
string Contents = sr.ReadToEnd();
string[] strArray = { Contents };
for (int r = 0; r <= dataGridView1.Rows.Count - 1; r++)
{
for (int c = 0; c <= dataGridView1.Columns.Count - 1; c++)
{
dataGridView1.Rows.Add(strArray[r].Split('|')); //getting the error here
}
}
//save button
private void button2_Click(object sender, EventArgs e)
{
//dataGridView1.AllowUserToAddRows = false;
if (dataGridView1.Visible)
{
string fName = "C:\\Documents and Settings\\" + txtFileName.Text + ".txt";
System.IO.StreamWriter file = new System.IO.StreamWriter(fName);
string sLine = "";
for (int r = 0; r <= dataGridView1.Rows.Count - 1; r++)
{
for (int c = 0; c <= dataGridView1.Columns.Count - 1; c++)
{
sLine = sLine + dataGridView1.Rows[r].Cells[c].Value;
if (c != dataGridView1.Columns.Count - 1)
{
sLine = sLine + "|";
}
}
file.WriteLine(sLine);
sLine = "";
}
file.Close();
System.Windows.Forms.MessageBox.Show("Save Complete.", "Program Info", MessageBoxButtons.OK, MessageBoxIcon.Information);
dataGridView1.DataSource = "";
dataGridView1.Visible = false;
}
else
{
string cap = "Confirmation";
string message = "Nothing to save";
MessageBoxButtons Btn2 = MessageBoxButtons.OK;
MessageBox.Show(message, cap, Btn2);
}
}
Thanks again for the help

Answer 1

Initially there is a dataGridView1.Rows.Count
Inside the loop u r doing this
dataGridView1.Rows.Add, which increments dataGridView1.Rows.Count by 1 every single time
so it comes back into the loop after the processing
try declaring int gridRowcount = dataGridView1.Rows.Count;
and then replace (int r = 0; r <= dataGridView1.Rows.Count - 1; r++)
for (int r = 0; r <= gridRowcount - 1; r++) and try
just guessing