[How Do I] Learn the Tips and Tricks of Experts

1.获取前一个页面的信息：

Page1：

 

代码

   
     

    
      
    
       
    
      <
    
      form id
    
      =
    
      "
    
      form1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       defaultbutton
    
      =
    
      "
    
      Button1
    
      "
    
       defaultfocus
    
      =
    
      "
    
      TextBox1
    
      "
    
       
    
      >
    
      
 
    
      <
    
      div
    
      >
    
      
 
 
    
      <
    
      asp:TextBox ID
    
      =
    
      "
    
      TextBox1
    
      "
    
      
 runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
      
 
    
      </
    
      asp:TextBox
    
      >
    
      
 
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      asp:Calendar ID
    
      =
    
      "
    
      Calendar1
    
      "
    
      
 runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
      
 
    
      </
    
      asp:Calendar
    
      >
    
      
 
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      asp:Button ID
    
      =
    
      "
    
      Button1
    
      "
    
       
 runat
    
      =
    
      "
    
      server
    
      "
    
       
 PostBackUrl
    
      =
    
      "
    
      ~/Page2.aspx
    
      "
    
       
 Text
    
      =
    
      "
    
      Button
    
      "
    
       
    
      />
    
      
 
    
      </
    
      div
    
      >
    
      
 
    
      </
    
      form
    
      >
   
     

Page2：

 

 

代码

   
     

    
      
    
       
    
      protected
    
       
    
      void
    
       Page_Load(
    
      object
    
       sender, EventArgs e)
 {
 
    
      if
    
       (
    
      !
    
      Page.IsPostBack)
 {
 TextBox t 
    
      =
    
       ((TextBox)(PreviousPage.FindControl(
    
      "
    
      TextBox1
    
      "
    
      )));
 Calendar c 
    
      =
    
       ((Calendar)(PreviousPage.FindControl(
    
      "
    
      Calendar1
    
      "
    
      )));
 Label1.Text 
    
      =
    
       
    
      string
    
      .Format(
    
      "
    
      Hello {0},you clicked on {1}
    
      "
    
      ,t.Text ,c.SelectedDate );
 }
 }
   
     

2.几种控件用法：

 

代码

   
     

    
      
    
       
    
      <
    
      div
    
      >
    
      
 
    
      <
    
      asp:RadioButtonList ID
    
      =
    
      "
    
      RadioButtonList1
    
      "
    
       
 runat
    
      =
    
      "
    
      server
    
      "
    
       
 AutoPostBack
    
      =
    
      "
    
      True
    
      "
    
       
 RepeatDirection
    
      =
    
      "
    
      Horizontal
    
      "
    
       
 onselectedindexchanged
    
      =
    
      "
    
      RadioButtonList1_SelectedIndexChanged
    
      "
    
       
    
      >
    
      
 
    
      <
    
      asp:ListItem Value
    
      =
    
      "
    
      0
    
      "
    
      >
    
      Bulleted List
    
      </
    
      asp:ListItem
    
      >
    
      
 
    
      <
    
      asp:ListItem Value
    
      =
    
      "
    
      1
    
      "
    
      >
    
      File Upload
    
      </
    
      asp:ListItem
    
      >
    
      
 
    
      <
    
      asp:ListItem Value
    
      =
    
      "
    
      2
    
      "
    
      >
    
      URL Mapping
    
      </
    
      asp:ListItem
    
      >
    
      
 
    
      </
    
      asp:RadioButtonList
    
      ><
    
      br 
    
      />
    
      
 
 
 
    
      <
    
      asp:MultiView ID
    
      =
    
      "
    
      MultiView1
    
      "
    
       
 runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
      
 
    
      <
    
      asp:View ID
    
      =
    
      "
    
      View1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
      
 
 Bulleted List Control
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      asp:BulletedList ID
    
      =
    
      "
    
      BulletedList1
    
      "
    
      
 runat
    
      =
    
      "
    
      server
    
      "
    
       
 DataSourceID
    
      =
    
      "
    
      XmlDataSource1
    
      "
    
       
 DataTextField
    
      =
    
      "
    
      text
    
      "
    
       
 DataValueField
    
      =
    
      "
    
      url
    
      "
    
       
 DisplayMode
    
      =
    
      "
    
      HyperLink
    
      "
    
      >
    
      
 
    
      </
    
      asp:BulletedList
    
      >
    
      
 
 
    
      </
    
      asp:View
    
      >
    
      
 
    
      <
    
      asp:View ID
    
      =
    
      "
    
      View2
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
      
 
 File Upload Control
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      asp:FileUpload ID
    
      =
    
      "
    
      FileUpload1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       
    
      />
    
      
 
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      asp:Button ID
    
      =
    
      "
    
      Button1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       onclick
    
      =
    
      "
    
      Button1_Click
    
      "
    
       Text
    
      =
    
      "
    
      UpLoad
    
      "
    
       
    
      />
    
      
 
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      asp:HyperLink ID
    
      =
    
      "
    
      HyperLink1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
      HyperLink
    
      </
    
      asp:HyperLink
    
      >
    
      
 
 
    
      </
    
      asp:View
    
      >
    
      
 
    
      <
    
      asp:View ID
    
      =
    
      "
    
      View3
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
      >
    
      
 
 URL mapping
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      a href
    
      =
    
      "
    
      guid_{492f3e0b-848e-11da-9550-00e08161165f}.htm
    
      "
    
      >
    
      
 guid_{492f3e0b
    
      -
    
      848e
    
      -
    
      11da
    
      -
    
      9550
    
      -
    
      00e08161165f
    
      }.htm
    
      </
    
      a
    
      ><
    
      br 
    
      />
    
      
 
    
      <
    
      br 
    
      />
    
      
 
    
      <
    
      a href
    
      =
    
      "
    
      guid.htm
    
      "
    
      >
    
      guid.htm
    
      </
    
      a
    
      >
    
      
 
    
      <
    
      br 
    
      />
    
      
 
 
    
      </
    
      asp:View
    
      >
    
      
 
    
      </
    
      asp:MultiView
    
      >
    
      
 
 
    
      <
    
      asp:XmlDataSource ID
    
      =
    
      "
    
      XmlDataSource1
    
      "
    
       runat
    
      =
    
      "
    
      server
    
      "
    
       
 DataFile
    
      =
    
      "
    
      ~/hyperlinks.xml
    
      "
    
      ></
    
      asp:XmlDataSource
    
      >
    
      
 
    
      </
    
      div
    
      >
   
     

代码

   
     

    
      
    
       
    
      protected
    
       
    
      void
    
       Button1_Click(
    
      object
    
       sender, EventArgs e)
 {
 
    
      if
    
       (FileUpload1.HasFile)
 {
 FileUpload1.SaveAs(
    
      this
    
      .MapPath(
    
      "
    
      upload\\
    
      "
    
       
    
      +
    
       FileUpload1.FileName));
 HyperLink1.Text 
    
      =
    
       FileUpload1.FileName;
 HyperLink1.NavigateUrl 
    
      =
    
       (
    
      "
    
      upload\\
    
      "
    
       
    
      +
    
       FileUpload1.FileName);
 }
 
 }

 
    
      protected
    
       
    
      void
    
       RadioButtonList1_SelectedIndexChanged(
    
      object
    
       sender, EventArgs e)
 {
 MultiView1.ActiveViewIndex 
    
      =
    
       Convert.ToInt32(RadioButtonList1.SelectedValue);
 }
   
     

 

代码

   
     

    
      
    
      <
    
      system
    
      .web
    
      >
    
      
 
    
      <!--
    
       
 设置 compilation debug="true" 可将调试符号插入
 已编译的页面中。但由于这会 
 影响性能，因此只在开发过程中将此值 
 设置为 true。
 
    
      -->
    
      
 
    
      <
    
      urlMappings 
    
      enabled
    
      ="True"
    
      >
    
      
 
    
      <
    
      add 
    
      url
    
      ="~/guid.htm"
    
       mappedUrl
    
      ="guid_{492f3e0b-848e-11da-9550-00e08161165f}.htm"
    
      />
    
      
 
    
      </
    
      urlMappings
    
      >