Question

i used List to store the value, its working correctly if the data is limited, if the data is exceed more 15o in counts, then i am getting the following error
Index was outside the bounds of the array…Plz suggest an idea to overcome this problem.

List<string> code = new List<string>();
private void btn_browse_Click(object sender, EventArgs e)
{
    DialogResult fileopen = openFileDialog1.ShowDialog();
    string filename = openFileDialog1.FileName;           
    txt_filename.Text = filename;
    try
    {
        StreamReader readtxtfile = new StreamReader(filename);
        String line = null;

        string str = null;
        char[] separate = { ',' };
        string[] words;
        while ((str = readtxtfile.ReadLine()) != null)
        {
            words = str.Split(separate);                        
            code.Add(Convert.ToString(words[0]) + '-' + Convert.ToString(words[2]).Trim());  
        }                    
    }

Answer 1

This error is not because of your list but it came from your array “words”. First check length of array like this

 words = str.Split(separate);  
 if(words.Length>2) 
 {                     
   code.Add(Convert.ToString(words[0]) + '-' + Convert.ToString(words[2]).Trim());  
 }

Make sure that whenever length of array is less then 2 it will not add in your list.

Hope this helps…