Populate Gridview at runtime using textfile

Question

it may seem to be simple problem to many of you, but want i am trying to do is i am reading a text file on a click event using StreamReader (ASP.net & C#) after

Answer 1

1. You should move your code with adding the DataColumn outside the for-loop
2. You should create new DataRow using DataTable.NewRow method
3. You should call data binding methods only once, and after the loops.

Your code should be something like this:

DataTable dt = new DataTable();
dt.Columns.Add("Row No", typeof(Int32));
dt.Columns.Add("Col No", typeof(Int32));
dt.Columns.Add("Width", typeof(Int32));
dt.Columns.Add("Height", typeof(Int32));
dt.Columns.Add("ImageUrl", typeof(String));
dt.Columns.Add("Description", typeof(String));

using (StreamReader sr = new StreamReader(@"D:\Temp\fileread\readtext.txt"))
{
    while ((line = sr.ReadLine()) != null)
    {
        string[] parts = line.Split(',');
        var row = dt.NewRow();
        for (int i = 0; i < parts.Length; i++)
        {
            row[i] = parts[i];
        }
        // important thing!
        dt.Rows.Add(row);
    }
    sr.Close();
}
MyGridView.DataSource = dt;
MyGridView.DataBind();