ASP.NET----实现网页中查看offic文件,word,ppt等

原理很简单，实现一个树，先获取文件存放文件夹地址，然后遍历每个文档，填入到树节点中去，看下截图效果：

具体看下面代码：

File.cs:

  
  

   
   public
   
    
   
   partial
   
    
   
   class
   
    Files : System.Web.UI.Page
{
 
   
   protected
   
    
   
   void
   
    Page_Load(
   
   object
   
    sender, EventArgs e)
 {
 
   
   if
   
   (
   
   !
   
   this
   
   .IsPostBack)
 
   
   this
   
   .InitTree();
 }

 
   
   private
   
    
   
   void
   
    InitTree()
 {
 
   
   //
   
   清除树节点
   
   

   
    
   
   this
   
   .trvFiles.Nodes.Clear();
 
   
   //
   
   实例化根节点
   
   

   
    TreeNode node 
   
   =
   
    
   
   new
   
    TreeNode();
 node.Text 
   
   =
   
    
   
   "
   
   简历文件
   
   "
   
   ;
 node.Value 
   
   =
   
    
   
   ""
   
   ;

 
   
   //
   
   获取存放Word PPT文件的文件夹路径
   
   

   
    
   
   string
   
    dicPath 
   
   =
   
    
   
   this
   
   .Server.MapPath(
   
   "
   
   WordFiles
   
   "
   
   );
 
   
   //
   
   实例化文件夹对象
   
   

   
    DirectoryInfo dic 
   
   =
   
    
   
   new
   
    DirectoryInfo(dicPath);
 
   
   //
   
   循环获取Word文档文件
   
   

   
    
   
   foreach
   
    (FileInfo file 
   
   in
   
    dic.GetFiles(
   
   "
   
   *.doc
   
   "
   
   ))
 {
 
   
   //
   
   实例化文件节点
   
   

   
    TreeNode fileNode 
   
   =
   
    
   
   new
   
    TreeNode();
 
   
   //
   
   赋值
   
   

   
    fileNode.Text 
   
   =
   
    file.Name;
 fileNode.Value 
   
   =
   
    file.FullName;
 
   
   //
   
   添加至根节点中
   
   

   
    node.ChildNodes.Add(fileNode);
 
   
   continue
   
   ;
 }

 
   
   //
   
   循环获取PPT文件
   
   

   
    
   
   foreach
   
    (FileInfo file 
   
   in
   
    dic.GetFiles(
   
   "
   
   *.ppt
   
   "
   
   ))
 {
 TreeNode fileNode 
   
   =
   
    
   
   new
   
    TreeNode();
 fileNode.Text 
   
   =
   
    file.Name;
 fileNode.Value 
   
   =
   
    file.FullName;
 node.ChildNodes.Add(fileNode);
 
   
   continue
   
   ;
 }
 
   
   //
   
   展开文件夹节点
   
   

   
    node.Expand();
 
   
   this
   
   .trvFiles.Nodes.Add(node);
 }

 
   
   protected
   
    
   
   void
   
    trvFiles_SelectedNodeChanged(
   
   object
   
    sender, EventArgs e)
 {
 
   
   //
   
   判断选中节点不是根节点
   
   

   
    
   
   if
   
    (
   
   !
   
   string
   
   .IsNullOrEmpty(
   
   this
   
   .trvFiles.SelectedNode.Value))
 {
 
   
   //
   
   拼装打开文件的JavaScript脚本
   
   

   
    
   
   string
   
    js 
   
   =
   
    
   
   "
   
   window.frames[0].location.href='{0}';
   
   "
   
   ;
 js 
   
   =
   
    
   
   string
   
   .Format(js, 
   
   "
   
   WordFiles/
   
   "
   
    
   
   +
   
    
   
   this
   
   .trvFiles.SelectedNode.Text);
 
   
   //
   
   执行脚本 即在DocShow.aspx页面打开相应节点
   
   

   
    
   
   this
   
   .WriteJS(js);
 }
 }

 
   
   protected
   
    
   
   void
   
    WriteJS(
   
   string
   
    msg)
 {
 
   
   string
   
    script 
   
   =
   
    
   
   string
   
   .Format(
   
   "
   
   <script type='text/javascript' language='javascript'>{0}</script>
   
   "
   
   , msg);
 
   
   this
   
   .ClientScript.RegisterStartupScript(
   
   this
   
   .GetType(), 
   
   "
   
   alert
   
   "
   
   , script);
 }
 
 
   
   protected
   
    
   
   void
   
    AlertMsg(
   
   string
   
    msg)
 {
 
   
   string
   
    script 
   
   =
   
    
   
   string
   
   .Format(
   
   "
   
   <script type='text/javascript' language='javascript'>window.alert('{0}');</script>
   
   "
   
   ,msg);
 
   
   this
   
   .ClientScript.RegisterStartupScript(
   
   this
   
   .GetType(),
   
   "
   
   alert
   
   "
   
   ,script);
 }

 
}
  
  

页面布局：

  
  

   
   <
   
   body
   
   >
   
   
 
   
   <
   
   form 
   
   id
   
   ="form1"
   
    runat
   
   ="server"
   
   >
   
   
 
   
   <
   
   div
   
   >
   
   
 
   
   <
   
   table 
   
   style
   
   ="border: none; padding: none; margin: none; width: 100%; height: 100%;"
   
   >
   
   
 
   
   <
   
   tr
   
   >
   
   
 
   
   <
   
   td 
   
   style
   
   ="width:20%;height:100%;vertical-align:top;"
   
   >
   
   
 
   
   <
   
   asp:TreeView 
   
   ID
   
   ="trvFiles"
   
    runat
   
   ="server"
   
    ImageSet
   
   ="XPFileExplorer"
   
    NodeIndent
   
   ="15"
   
   
 OnSelectedNodeChanged
   
   ="trvFiles_SelectedNodeChanged"
   
   >
   
   
 
   
   <
   
   ParentNodeStyle 
   
   Font-Bold
   
   ="False"
   
    
   
   />
   
   
 
   
   <
   
   HoverNodeStyle 
   
   Font-Underline
   
   ="True"
   
    ForeColor
   
   ="#6666AA"
   
    
   
   />
   
   
 
   
   <
   
   SelectedNodeStyle 
   
   BackColor
   
   ="#B5B5B5"
   
    Font-Underline
   
   ="False"
   
    HorizontalPadding
   
   ="0px"
   
   
 VerticalPadding
   
   ="0px"
   
    
   
   />
   
   
 
   
   <
   
   NodeStyle 
   
   Font-Names
   
   ="Tahoma"
   
    Font-Size
   
   ="8pt"
   
    ForeColor
   
   ="Black"
   
    HorizontalPadding
   
   ="2px"
   
   
 NodeSpacing
   
   ="0px"
   
    VerticalPadding
   
   ="2px"
   
    
   
   />
   
   
 
   
   </
   
   asp:TreeView
   
   >
   
   
 
   
   </
   
   td
   
   >
   
   
 
   
   <
   
   td
   
   >
   
   
 
   
   <
   
   iframe 
   
   style
   
   ="scroll:auto;width:100%;height:800px;border:none;"
   
    src
   
   ="DocShow.aspx"
   
   >
   
   
 
   
   </
   
   iframe
   
   >
   
   
 
   
   </
   
   td
   
   >
   
   
 
   
   </
   
   tr
   
   >
   
   
 
   
   </
   
   table
   
   >
   
   
 
   
   </
   
   div
   
   >
   
   
 
   
   </
   
   form
   
   >
   
   

   
   </
   
   body
   
   >
  
  
  
  

   
   

  
  
  
  

   
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