using System.Data.OleDb; using System.Data.SqlClient; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { string strConn, strSQL; // strConn = "provider=SQLOLEDB; Data Source=E:\\_ASP\\TXTUzorak.txt; Extended Properties='text;HDR=No;FMT=Delimited'"; strConn = "provider=SQLOLEDB; Data Source=E:\\_ASP\\TXTUzorak.txt;Integrated Security=True"; strSQL = "SELECT * from TXTUzorak.txt" ; OleDbConnection cn = new OleDbConnection(); cn.ConnectionString = strConn; cn.Open(); //OleDbDataAdapter da = new OleDbDataAdapter(strSQL, cn); //DataSet ds = new DataSet(); //da.Fill(ds, "Kupci"); OleDbCommand izvrsi = new OleDbCommand(strSQL, cn); OleDbDataReader citac = izvrsi.ExecuteReader(); cn.Close(); GridView1.DataSource = citac; //GridView1.DataSource = ds; //GridView1.DataMember = "Kupci"; GridView1.DataBind() ; }No error message available, result code: DB_E_ERRORSOCCURRED(0x80040E21).