c#.net2.0コード内の文字列変数にhtmlを保存しています。以下に例を示します。
<div class="track">
<img alt="" src="http://hits.guardian.co.uk/b/ss/guardiangu-feeds/1/H.20.3/30561?ns=guardian&pageName=Hundreds+feared+dead+in+Haiti+quake%3AArticle%3A1336252&ch=World+news&c3=GU.co.uk&c4=Haiti+%28News%29%2CDominican+Republic+%28News%29%2CCuba+%28News%29%2CBahamas+%28News%29%2CNatural+disasters+and+extreme+weather+%28News%29%2CEnvironment%2CWorld+news&c6=Rory+Carroll%2CHaroon+Siddique&c7=10-Jan-13&c8=1336252&c9=Article&c10=News&c11=World+news&c13=&c25=&c30=content&h2=GU%2FWorld+news%2FHaiti" width="1" height="1" />
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<p class="standfirst">
• Tens of thousands lose homes in 7.0 magnitude quake<br />
• UN headquarters, schools and hospitals collapse
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<p>
René Préval, the president of Haiti, has described the devastation after last night's earthquake as "unimaginable" as governments and aid agencies around the world rushed into action.
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<p>
Préval described how he had been forced to step over dead bodies and heard the cries of those trapped under the rubble of the national parliament. "Parliament has collapsed. The tax office has collapsed. Schools have collapsed. Hospitals have collapsed," <a href="http://www.miamiherald.com/582/story/1422279.html" title="he told the Miami Herald">he told the Miami Herald</a>. "There are a lot of schools that have a lot of dead people in them." Préval said he thought thousands of people had died in the quake.
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最初の2つの段落を元の文字列のサブストリングとして出力したいだけです。
誰かが助けることができますか?