これまでのところ、次のコードがあります。
Dim wreqBalQtr As HttpWebRequest = WebRequest.Create("http://www.reuters.com/finance/stocks/incomeStatement/detail?stmtType=BAL&perType=INT&symbol=" & tickerValue)
wreqBalQtr.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5"
wreqBalQtr.Method = "get"
Dim proxBalQtr As IWebProxy = wreqBalQtr.Proxy
proxBalQtr.Credentials = CredentialCache.DefaultCredentials
Dim documentBalQtr As New HtmlAgilityPack.HtmlDocument
Dim webBalQtr As New HtmlAgilityPack.HtmlWeb
webBalQtr.UseCookies = True
webBalQtr.PreRequest = New HtmlAgilityPack.HtmlWeb.PreRequestHandler(AddressOf onPreReq)
wreqBalQtr.CookieContainer = cookies
Dim resBalQtr As HttpWebResponse = wreqBalQtr.GetResponse()
documentBalQtr.Load(resBalQtr.GetResponseStream, True)
Dim TotalCurrentAssets = documentBalQtr.DocumentNode.SelectSingleNode("//table[@class='dataTable Financials']//tr[13]//td[3]")
HTMLは次のとおりです。
<table class="dataTable financials" cellspacing="1" cellpadding="0" width="100%">
<tr>
<th class="rh">
<span class="units">
In Millions of U.S. Dollars<br/>
(except for per share items)<br/>
</span>
</th>
<th class="data">
2012<br/>
2012-09-30<br/>
<span class="period">
</span>
</th>
<th class="data">
2012<br/>
2012-06-30<br/>
<span class="period">
</span>
</th>
<th class="data">
2012<br/>
2012-03-31<br/>
<span class="period">
</span>
</th>
<th class="data">
2011<br/>
2011-12-31<br/>
<span class="period">
Reclassified<br/>
2012-06-30<br/>
</span>
</th>
<th class="data">
2011<br/>
2011-09-30<br/>
<span class="period">
</span>
</th>
</tr>
<tr class="both stripe ">
<td class="rh">Cash</td>
<td class="data plus">6,224.0</td>
<td class="data plus">7,463.0</td>
<td class="data plus">11,239.0</td>
<td class="data plus">4,712.0</td>
<td class="data plus">4,209.0</td>
</tr>
<tr class="both ">
<td class="rh">Cash & Equivalents</td>
<td class="data plus">10,036.0</td>
<td class="data plus">7,974.0</td>
<td class="data plus">11,869.0</td>
<td class="data plus">5,271.0</td>
<td class="data plus">6,421.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Short Term Investments</td>
<td class="data plus">29,464.0</td>
<td class="data plus">27,685.0</td>
<td class="data plus">26,208.0</td>
<td class="data plus">34,643.0</td>
<td class="data plus">31,930.0</td>
</tr>
<tr class="both ">
<td class="rh">Cash and Short Term Investments</td>
<td class="data plus">45,724.0</td>
<td class="data plus">43,122.0</td>
<td class="data plus">49,316.0</td>
<td class="data plus">44,626.0</td>
<td class="data plus">42,560.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Accounts Receivable - Trade, Net</td>
<td class="data plus">7,259.0</td>
<td class="data plus">6,866.0</td>
<td class="data plus">5,163.0</td>
<td class="data plus">5,427.0</td>
<td class="data plus">4,583.0</td>
</tr>
<tr class="both ">
<td class="rh">Notes Receivable - Short Term</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both stripe ">
<td class="rh">Receivables - Other</td>
<td class="data plus">550.0</td>
<td class="data plus">475.0</td>
<td class="data plus">550.0</td>
<td class="data plus">745.0</td>
<td class="data plus">1,278.0</td>
</tr>
<tr class="both ">
<td class="rh">Total Receivables, Net</td>
<td class="data plus">7,809.0</td>
<td class="data plus">7,341.0</td>
<td class="data plus">5,713.0</td>
<td class="data plus">6,172.0</td>
<td class="data plus">5,861.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Total Inventory</td>
<td class="data plus">618.0</td>
<td class="data plus">634.0</td>
<td class="data plus">--</td>
<td class="data plus">35.0</td>
<td class="data plus">--</td>
</tr>
<tr class="both ">
<td class="rh">Prepaid Expenses</td>
<td class="data plus">2,440.0</td>
<td class="data plus">2,614.0</td>
<td class="data plus">1,779.0</td>
<td class="data plus">1,710.0</td>
<td class="data plus">1,406.0</td>
</tr>
<tr class="sum stripe ">
<td class="rh">Other Current Assets, Total</td>
<td class="data plus">230.0</td>
<td class="data plus">146.0</td>
<td class="data plus">51.0</td>
<td class="data plus">215.0</td>
<td class="data plus">215.0</td>
</tr>
<tr class="both total">
<td class="rh">Total Current Assets</td>
<td class="data plus">56,821.0</td>
<td class="data plus">53,857.0</td>
<td class="data plus">56,859.0</td>
<td class="data plus">52,758.0</td>
<td class="data plus">50,042.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Property/Plant/Equipment, Total - Gross</td>
<td class="data plus">17,038.0</td>
<td class="data plus">16,137.0</td>
<td class="data plus">14,963.0</td>
<td class="data plus">14,400.0</td>
<td class="data plus">13,815.0</td>
</tr>
<tr class="both ">
<td class="rh">Accumulated Depreciation, Total</td>
<td class="data minus">(5,637.0)</td>
<td class="data minus">(5,228.0)</td>
<td class="data minus">(5,088.0)</td>
<td class="data minus">(4,797.0)</td>
<td class="data minus">(4,611.0)</td>
</tr>
<tr class="both stripe ">
<td class="rh">Property/Plant/Equipment, Total - Net</td>
<td class="data plus">11,401.0</td>
<td class="data plus">10,909.0</td>
<td class="data plus">9,875.0</td>
<td class="data plus">9,603.0</td>
<td class="data plus">9,204.0</td>
</tr>
<tr class="both ">
<td class="rh">Goodwill, Net</td>
<td class="data plus">10,485.0</td>
<td class="data plus">10,120.0</td>
<td class="data plus">7,325.0</td>
<td class="data plus">7,346.0</td>
<td class="data plus">6,989.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Intangibles, Net</td>
<td class="data plus">7,754.0</td>
<td class="data plus">7,862.0</td>
<td class="data plus">1,541.0</td>
<td class="data plus">1,578.0</td>
<td class="data plus">1,474.0</td>
</tr>
<tr class="sum ">
<td class="rh">Long Term Investments</td>
<td class="data plus">1,063.0</td>
<td class="data plus">1,040.0</td>
<td class="data plus">880.0</td>
<td class="data plus">790.0</td>
<td class="data plus">891.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Note Receivable - Long Term</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="sum ">
<td class="rh">Other Long Term Assets, Total</td>
<td class="data plus">2,206.0</td>
<td class="data plus">2,263.0</td>
<td class="data plus">664.0</td>
<td class="data plus">499.0</td>
<td class="data plus">488.0</td>
</tr>
<tr class="sum stripe ">
<td class="rh">Other Assets, Total</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both total">
<td class="rh">Total Assets</td>
<td class="data plus">89,730.0</td>
<td class="data plus">86,051.0</td>
<td class="data plus">77,144.0</td>
<td class="data plus">72,574.0</td>
<td class="data plus">69,088.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Accounts Payable</td>
<td class="data plus">2,233.0</td>
<td class="data plus">2,419.0</td>
<td class="data plus">760.0</td>
<td class="data plus">588.0</td>
<td class="data plus">563.0</td>
</tr>
<tr class="both ">
<td class="rh">Payable/Accrued</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both stripe ">
<td class="rh">Accrued Expenses</td>
<td class="data plus">6,347.0</td>
<td class="data plus">5,551.0</td>
<td class="data plus">3,429.0</td>
<td class="data plus">4,356.0</td>
<td class="data plus">3,563.0</td>
</tr>
<tr class="both ">
<td class="rh">Notes Payable/Short Term Debt</td>
<td class="data plus">3,218.0</td>
<td class="data plus">3,218.0</td>
<td class="data plus">2,468.0</td>
<td class="data plus">1,218.0</td>
<td class="data plus">1,218.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Current Port. of LT Debt/Capital Leases</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="sum ">
<td class="rh">Other Current liabilities, Total</td>
<td class="data plus">2,636.0</td>
<td class="data plus">2,840.0</td>
<td class="data plus">3,085.0</td>
<td class="data plus">2,751.0</td>
<td class="data plus">3,544.0</td>
</tr>
<tr class="both stripe total">
<td class="rh">Total Current Liabilities</td>
<td class="data plus">14,434.0</td>
<td class="data plus">14,028.0</td>
<td class="data plus">9,742.0</td>
<td class="data plus">8,913.0</td>
<td class="data plus">8,888.0</td>
</tr>
<tr class="both ">
<td class="rh">Long Term Debt</td>
<td class="data plus">2,988.0</td>
<td class="data plus">2,987.0</td>
<td class="data plus">2,987.0</td>
<td class="data plus">2,986.0</td>
<td class="data plus">2,986.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Capital Lease Obligations</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both ">
<td class="rh">Total Long Term Debt</td>
<td class="data plus">2,988.0</td>
<td class="data plus">2,987.0</td>
<td class="data plus">2,987.0</td>
<td class="data plus">2,986.0</td>
<td class="data plus">2,986.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Total Debt</td>
<td class="data plus">6,206.0</td>
<td class="data plus">6,205.0</td>
<td class="data plus">5,455.0</td>
<td class="data plus">4,204.0</td>
<td class="data plus">4,204.0</td>
</tr>
<tr class="sum ">
<td class="rh">Deferred Income Tax</td>
<td class="data plus">1,461.0</td>
<td class="data plus">1,509.0</td>
<td class="data plus">384.0</td>
<td class="data plus">287.0</td>
<td class="data plus">263.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Minority Interest</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="sum ">
<td class="rh">Other Liabilities, Total</td>
<td class="data plus">2,819.0</td>
<td class="data plus">2,806.0</td>
<td class="data plus">2,319.0</td>
<td class="data plus">2,243.0</td>
<td class="data plus">2,121.0</td>
</tr>
<tr class="both stripe total">
<td class="rh">Total Liabilities</td>
<td class="data plus">21,702.0</td>
<td class="data plus">21,330.0</td>
<td class="data plus">15,432.0</td>
<td class="data plus">14,429.0</td>
<td class="data plus">14,258.0</td>
</tr>
<tr class="sum ">
<td class="rh">Redeemable Preferred Stock, Total</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="sum stripe ">
<td class="rh">Preferred Stock - Non Redeemable, Net</td>
<td class="data plus">0.0</td>
<td class="data plus">0.0</td>
<td class="data plus">0.0</td>
<td class="data plus">0.0</td>
<td class="data plus">0.0</td>
</tr>
<tr class="sum ">
<td class="rh">Common Stock, Total</td>
<td class="data plus">22,204.0</td>
<td class="data plus">21,357.0</td>
<td class="data plus">20,795.0</td>
<td class="data plus">20,264.0</td>
<td class="data plus">19,697.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Additional Paid-In Capital</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both ">
<td class="rh">Retained Earnings (Accumulated Deficit)</td>
<td class="data plus">45,456.0</td>
<td class="data plus">43,280.0</td>
<td class="data plus">40,495.0</td>
<td class="data plus">37,605.0</td>
<td class="data plus">34,901.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Treasury Stock - Common</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both ">
<td class="rh">ESOP Debt Guarantee</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both stripe ">
<td class="rh">Unrealized Gain (Loss)</td>
<td class="data plus">566.0</td>
<td class="data plus">389.0</td>
<td class="data plus">416.0</td>
<td class="data plus">327.0</td>
<td class="data plus">99.0</td>
</tr>
<tr class="sum ">
<td class="rh">Other Equity, Total</td>
<td class="data minus">(198.0)</td>
<td class="data minus">(305.0)</td>
<td class="data plus">6.0</td>
<td class="data minus">(51.0)</td>
<td class="data plus">133.0</td>
</tr>
<tr class="both stripe total">
<td class="rh">Total Equity</td>
<td class="data plus">68,028.0</td>
<td class="data plus">64,721.0</td>
<td class="data plus">61,712.0</td>
<td class="data plus">58,145.0</td>
<td class="data plus">54,830.0</td>
</tr>
<tr class="both total">
<td class="rh">Total Liabilities & Shareholders' Equity</td>
<td class="data plus">89,730.0</td>
<td class="data plus">86,051.0</td>
<td class="data plus">77,144.0</td>
<td class="data plus">72,574.0</td>
<td class="data plus">69,088.0</td>
</tr>
<tr class="both stripe ">
<td class="rh">Shares Outs - Common Stock Primary Issue</td>
<td class="data plus">264.52</td>
<td class="data plus">261.58</td>
<td class="data plus">259.50</td>
<td class="data plus">257.55</td>
<td class="data plus">255.70</td>
</tr>
<tr class="both ">
<td class="rh">Shares Outstanding - Common Issue 2</td>
<td class="data plus">64.04</td>
<td class="data plus">65.36</td>
<td class="data plus">66.40</td>
<td class="data plus">67.34</td>
<td class="data plus">68.05</td>
</tr>
<tr class="both stripe ">
<td class="rh">Shares Outstanding - Common Issue 3</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both ">
<td class="rh">Shares Outstanding - Common Issue 4</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
<tr class="both stripe total">
<td class="rh">Total Common Shares Outstanding</td>
<td class="data plus">328.55</td>
<td class="data plus">326.94</td>
<td class="data plus">325.91</td>
<td class="data plus">324.89</td>
<td class="data plus">323.76</td>
</tr>
<tr class="both total">
<td class="rh">Total Preferred Shares Outstanding</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
<td class="data plus">--</td>
</tr>
</table>
</div>
</div>
</div>
変数 TotalCurrentAssets を使用して、Total Current Assets 行から 2 番目の列を取得しようとすると (数値は 53,857.0 になるはずです)。「NullReferenceException がユーザー コードによって処理されませんでした。オブジェクト参照がオブジェクトのインスタンスに設定されていません。」というメッセージが表示されます。
これは、変数 TotalCurrentAssets が何も返さないということですか? エラーはコードの最後の行にあると想定しています。
追加情報
それが私の問題に影響を与えるかどうかはわかりませんが、元の投稿のコードの前にこのコードを実行します。
Dim wreqBeta As HttpWebRequest = WebRequest.Create("http://www.reuters.com/finance/stocks/overview?symbol=" & tickerValue)
wreqBeta.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5"
wreqBeta.Method = "get"
Dim proxBeta As IWebProxy = wreqBeta.Proxy
proxBeta.Credentials = CredentialCache.DefaultCredentials
Dim documentBeta As New HtmlAgilityPack.HtmlDocument
Dim webBeta As New HtmlAgilityPack.HtmlWeb
webBeta.UseCookies = True
webBeta.PreRequest = New HtmlAgilityPack.HtmlWeb.PreRequestHandler(AddressOf onPreReq)
wreqBeta.CookieContainer = cookies
Dim resBeta As HttpWebResponse = wreqBeta.GetResponse()
documentBeta.Load(resBeta.GetResponseStream, True)
Dim beta = documentBeta.DocumentNode.SelectSingleNode("//div[@id='overallRatios']//table[@class='dataTable']//tr[1]//td[2]")
新しい Web ページの解析を開始する前に、このコードから何かを閉じる必要がありますか?