how read text file and store it into array format.

Use a StreamReader to read the file a line at a time, then add each row to a List<string>. Then use .ToArray() on that.

first make one button and textbox and try this code.

private void button1_Click(object sender, EventArgs e)
{

string fpath="E:\\one.txt";
StreamReader dr = new StreamReader(fpath);
string[] arr=new string[1000];
int i = 0;
string st = "";
while (dr.Peek() !=-1)
{
arr[i] = dr.ReadLine();
st = st + arr[i].ToString()+"\n";
i++;
}
textBox1.Text = st;
}

here i declared string array and that size is 1000, and get value from reader.

i hope this is useful to you;
take care bye bye