利用WebClient和WebRequest类获得网页源代码

＜asp:TextBox id="UrlText" runat="server" Width="400px">http://dotnet.aspx.cc/content.aspx

    ＜/asp:TextBox>

＜asp:Button id="WebClientButton" Runat="server" Text="用WebClient得到">＜/asp:Button>

＜asp:Button id="WebRequestButton" runat="server" Text="用WebRequest得到">＜/asp:Button>

<br>

＜asp:TextBox id="ContentHtml" runat="server" Width="100％" Height="360px" TextMode="MultiLine">

    ＜/asp:TextBox>

</form>

</body>

</HTML>

GetPageHtml.aspx.cs

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;