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1 つのグリッドと画像を含む Asp.Net ページがあります。画像は Google チャートのチャートで、その URL は約 1600 文字です。グリッドと画像を含む .htm ファイルを一緒に出力します。グリッドの場合は RenderControl を使用して HTML コードを取得し、画像の場合は img html タグを追加して、URL をその src に割り当てます。次に、この .htm ファイルを電子メールの添付ファイルとして送信します。

私の問題は、添付ファイルを開こうとすると、画像以外はすべて正常に表示されることです (何も表示されず、ページのソース コードを見ると、img タグに src がまったく表示されません - < img > (スペースなし) と表示されるだけです。ファイルをディスクに保存した後にファイルを開くと、すべて正常に動作し、実際の img src が表示されます。なぜですか???

これが私のhtmlヘッダーです：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><META http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body>

そして、ここに画像があります：

<img src="http://chart.apis.google.com/chart?chd=t:0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,420.95,0.00,2725.25,0.00,0.00,0.00,0.00,5036.96,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,47.82|0.0000,7.97,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,4.98,1.99,2.24,0.00,0.00,0.00,0.00,0.00,0.00,0.00,1.99,1.99|0.5100,34.04,0.00,0.00,0.00,0.00,0.00,0.00,1.00,0.00,0.00,0.00,0.00,0.00,0.00,36.77,18.01,18.26,0.00,0.00,0.00,0.00,0.00,8.99,0.00,20.06,14.01|0,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,2.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,4.00|3.0000,0.00,0.00,0.00,0.00,0.00,0.00,0.00,46.98,0.00,257.91,113.25,0.00,0.00,0.00,1.00,24.99,29.99,0.00,0.00,0.00,0.00,0.00,0.00,0.00,60.00,123.92|0,0.00,0.00,0.00,0.00,0.00,0.00,0.00,45.00,0.00,0.00,0.00,0.00,0.00,0.00,20.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,84.00|0,55.99,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,65.99&chdl=Type 1|Type 2|Type 3|Type 4|Type 5|Type 6|Type 7&chco=000000,CD7F32,A62A2A,0000FF,00FF00,FF6EC7,A8A8A8&chds=0,5037&chxl=0:|6/22|6/23|6/24|6/25|6/26|6/27|6/28|6/29|6/30|7/1|7/2|7/3|7/4|7/5|7/6|7/7|7/8|7/9|7/10|7/11|7/12|7/13|7/14|7/15|7/16|7/17|7/18|1:|0|503|1006|1509|2012|2515|3018|3521|4024|4527|5037|2:|Days|3:|Amount ($)&chls=3,1,0|3,1,0|3,1,0|3,1,0|3,1,0|3,1,0|3,1,0&chm=o,990066,0,-1,6.0|o,990066,1,-1,6.0|o,990066,2,-1,6.0|o,990066,3,-1,6.0|o,990066,4,-1,6.0|o,990066,5,-1,6.0|o,990066,6,-1,6.0&chg=3.85,0&cht=lc&chs=900x300&chxt=x,y,r,t"/>

問題が URL のサイズである場合、pdf ファイルを作成して添付する以外に、どのような選択肢がありますか? 必要なのはhtmlファイルだけのようで、シンプルに保ちたいと思います。

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2 に答える 2

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あなたは間違いなく長いURLの問題を見ている可能性があります。これは、Google Charts APIを使用していたときに発生しました（ASP.NETではなくRailsで）。問題を引き起こし始めた正確なURLサイズを見つけることはできませんでしたが、1024から始まる問題を報告する人もいました。

Googleは、入力データを縮小するために使用できるいくつかの異なるエンコーディングタイプを提供していますが、テキストエンコーディング（実行していること）以外のものを使用すると、データをスケーリングする機能が無効になります。

データをスケーリングできない場合、データが長時間にわたって最大のままである場合、または異なるスケールで2つのグラフをオーバーレイする場合は、見苦しいグラフが表示されることがあります。

GoogleChartAPIドキュメントのデータ形式を見る

于 2009-07-21T21:41:40.440 に答える
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GET が長すぎる場合は、代わりに POST を使用できますが、十分すぎる 16k の制限があります。以下のコードを使用してチャートを生成しましたが、うまくいきました。はい、投稿を使用してメールに添付できると思います。おそらく、GET の使用に関する問題は、画像ファイルを開かないように構成された電子メール クライアントの問題です。他のクライアントでテストしましたか?

<form action='http://chart.apis.google.com/chart' method='POST' id='post_form'>
<input type="hidden" name="cht" value="lc"  />
<input type="hidden" name="chtt" value="Demo chart"  />
<input type="hidden" name="chg" value="3.85,0" />
<input type='hidden' name='chs' value='900x300' />
<input type="hidden" name="chxt" value="x,y,r,t" />
<input type="hidden" name="chds" value="0,5037" />
<input type="hidden" name="chxl" value="0:|6/22|6/23|6/24|6/25|6/26|6/27|6/28|6/29|6/30|7/1|7/2|7/3|7/4|7/5|7/6|7/7|7/8|7/9|7/10|7/11|7/12|7/13|7/14|7/15|7/16|7/17|7/18|1:|0|503|1006|1509|2012|2515|3018|3521|4024|4527|5037|2:|Days|3:|Amount ($)" />
<input type="hidden" name="chls" value="3,1,0|3,1,0|3,1,0|3,1,0|3,1,0|3,1,0|3,1,0" />
<input type="hidden" name="chm" value="o,990066,0,-1,6.0|o,990066,1,-1,6.0|o,990066,2,-1,6.0|o,990066,3,-1,6.0|o,990066,4,-1,6.0|o,990066,5,-1,6.0|o,990066,6,-1,6.0" />
<input type="hidden" name="chco" value="000000,CD7F32,A62A2A,0000FF,00FF00,FF6EC7,A8A8A8" />
<input type="hidden" name="chdl" value="Type 1|Type 2|Type 3|Type 4|Type 5|Type 6|Type 7" />
<input type='hidden' name='chd' value='t:0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,420.95,0.00,2725.25,0.00,0.00,0.00,0.00,5036.96,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,47.82|0.0000,7.97,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,4.98,1.99,2.24,0.00,0.00,0.00,0.00,0.00,0.00,0.00,1.99,1.99|0.5100,34.04,0.00,0.00,0.00,0.00,0.00,0.00,1.00,0.00,0.00,0.00,0.00,0.00,0.00,36.77,18.01,18.26,0.00,0.00,0.00,0.00,0.00,8.99,0.00,20.06,14.01|0,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,2.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,4.00|3.0000,0.00,0.00,0.00,0.00,0.00,0.00,0.00,46.98,0.00,257.91,113.25,0.00,0.00,0.00,1.00,24.99,29.99,0.00,0.00,0.00,0.00,0.00,0.00,0.00,60.00,123.92|0,0.00,0.00,0.00,0.00,0.00,0.00,0.00,45.00,0.00,0.00,0.00,0.00,0.00,0.00,20.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,84.00|0,55.99,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,0.00,65.99'/>
<input type="submit"  />

于 2010-06-24T13:01:10.520 に答える