public static string[] GetCompletionListDocName(string prefixText, int count, string contextKey)
    {
        Document_Master objdoc = new Document_Master();
        DataTable       dt     = objdoc.getdocumentmaster(HttpContext.Current.Session["CompId"].ToString(), "0");

        dt = new DataView(dt, "Document_Name like '" + prefixText.ToString() + "%'", "", DataViewRowState.CurrentRows).ToTable();

        string[] txt = new string[dt.Rows.Count];

        for (int i = 0; i < dt.Rows.Count; i++)
        {
            txt[i] = dt.Rows[i]["Document_Name"].ToString();
        }
        return(txt);
    }