DiscoveryClientProtocol.Documents 属性

定义

获取发现文档的集合。Gets a collection of discovery documents.

public:
 property System::Web::Services::Discovery::DiscoveryClientDocumentCollection ^ Documents { System::Web::Services::Discovery::DiscoveryClientDocumentCollection ^ get(); };
public System.Web.Services.Discovery.DiscoveryClientDocumentCollection Documents { get; }
member this.Documents : System.Web.Services.Discovery.DiscoveryClientDocumentCollection
Public ReadOnly Property Documents As DiscoveryClientDocumentCollection

属性值

DiscoveryClientDocumentCollection

DiscoveryClientDocumentCollection,它表示找到的发现文档的集合。A DiscoveryClientDocumentCollection representing the collection of discovery documents found.

示例

下面的代码示例是一个 Web 窗体,该窗体 DataGrid 使用有关在 Documents XML Web services 发现过程中发现的属性中的文档的详细信息填充。The following code example is a Web Form that populates a DataGrid with the details about the documents in the Documents property discovered during XML Web services discovery. PopulateGrid方法 DataGrid 使用调用的结果填充, DiscoverAny 然后调用 ResolveAllThe PopulateGrid method fills the DataGrid with the results from a DiscoverAny invocation followed by a call to ResolveAll.

重要

此示例具有一个接受用户输入的文本框,这是一个潜在的安全威胁。This example has a text box that accepts user input, which is a potential security threat. 默认情况下,ASP.NET 网页验证用户输入是否不包含脚本或 HTML 元素。By default, ASP.NET Web pages validate that user input does not include script or HTML elements. 有关详细信息,请参阅脚本侵入概述For more information, see Script Exploits Overview.

<%@ Page Language="C#" Debug="true" %>

<%@ Import Namespace="System.Web.Services.Discovery" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Net" %>
<%@ Import Namespace="System.Data" %>

<HTML>
<HEAD>
   <SCRIPT RUNAT="SERVER">
   protected void Discover_Click(object Source, EventArgs e)
   {
    // Specify the URL to discover.
    string sourceUrl = DiscoURL.Text;
    // Specify the URL to save discovery results to or read from.
    string outputDirectory = DiscoDir.Text;

        DiscoveryClientProtocol client = new DiscoveryClientProtocol();
    // Use default credentials to access the URL being discovered.
        client.Credentials = CredentialCache.DefaultCredentials;

        try 
        {
          DiscoveryDocument doc;
          
          // Discover the URL for any discoverable documents. 
      doc = client.DiscoverAny(sourceUrl);
     
          // Resolve all possible references from the supplied URL.
          client.ResolveAll();
        }
        catch ( Exception e2) 
        {
          DiscoveryResultsGrid.Columns.Clear();
          Status.Text = e2.Message;
        }
    // If documents were discovered, display the results in a data grid.
        if (client.Documents.Count > 0)
        PopulateGrid(client);

    // Save the discovery results to disk.
        DiscoveryClientResultCollection results = client.WriteAll(outputDirectory, "results.discomap");
        Status.Text = "The following file holds the links to each of the discovery results: <b>" + 
                                    Path.Combine(outputDirectory,"results.discomap") + "</b>";
  }

      protected void PopulateGrid(DiscoveryClientProtocol client) 
      {
         DataTable dt = new DataTable();
         DataRow dr;
 
         dt.Columns.Add(new DataColumn("Discovery Document") );
         dt.Columns.Add(new DataColumn("References") );
         dt.Columns.Add(new DataColumn("Type") );

     // Iterate over the discovered documents, displaying their types and any associated references.
         foreach (DictionaryEntry entry in client.Documents) 
         {
                dr = dt.NewRow();
        dr[0] = (string) entry.Key;
        dr[2] = entry.Value.GetType();
        dt.Rows.Add(dr);
        
        // If the discovered document is a discovery document, iterate over its references.	
        if (entry.Value is DiscoveryDocument)
        {
          DiscoveryDocument discoDoc = (DiscoveryDocument) entry.Value;
          foreach (DiscoveryReference discoref in discoDoc.References)
          {
            dr = dt.NewRow();
            dr[1] = discoref.Url;
            dr[2] = discoref.GetType();
            dt.Rows.Add(dr);
           }
        }
        
         }
        DataView dv = new DataView(dt);
    DiscoveryResultsGrid.DataSource = (ICollection) dv;
    DiscoveryResultsGrid.DataBind();
      
    }
  </SCRIPT>
  </HEAD> 
  <BODY>
    <H3> <p align="center"> Discovery Class Sample </p> </H3>
        <FORM RUNAT="SERVER">
    <hr>	
     Enter the URL to discover:
        <asp:textbox id=DiscoURL Columns=60 runat="SERVER" /><p>

        Enter the directory to Read/Save the Discovery results:
        <asp:textbox id=DiscoDir runat="SERVER" /> <p>

    <p align="center"> <asp:Button id=Discover Text="Discover!" onClick="Discover_Click" runat="SERVER"/> </p><p>

        <hr>
        <asp:label id="Status" runat="SERVER" /><p>
     <asp:DataGrid id="DiscoveryResultsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="true"
           runat="server">

         <HeaderStyle BackColor="DarkBlue" ForeColor="White">
         </HeaderStyle>

         <AlternatingItemStyle BackColor="LightYellow">
         </AlternatingItemStyle>

     </asp:DataGrid>
        </FORM>
  </BODY>
<%@ Page Language="VB" Debug="true" %>

<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Web.Services.Discovery" %>
<%@ Import Namespace="System.Net" %>
<%@ Import Namespace="System.Data" %>

<HTML>
<HEAD>
   <SCRIPT RUNAT="SERVER">

   Public Sub Discover_Click(Source As Object, e as EventArgs )
      ' Specify the URL to discover.
      Dim sourceUrl as String = DiscoURL.Text
      ' Specify the URL to save discovery results to or read from.
      Dim outputDirectory As String = DiscoDir.Text

      Dim client as DiscoveryClientProtocol = new DiscoveryClientProtocol()
      ' Use default credentials to access the URL being discovered.
      client.Credentials = CredentialCache.DefaultCredentials
      Try 
        Dim doc As DiscoveryDocument
        ' Discover the URL for any discoverable documents. 
        doc = client.DiscoverAny(sourceUrl)

    ' Resolve all possible references from the supplied URL.
        client.ResolveAll()
              
       Catch e2 As Exception
          DiscoveryResultsGrid.Columns.Clear()
          Status.Text = e2.Message
       End Try

       ' If documents were discovered, display the results in a data grid.
       If (client.Documents.Count > 0) Then
            'populate our Grid with the discovery results
        PopulateGrid(client)
       End If

       ' Save the discovery results to disk.	    
       Dim results As DiscoveryClientResultCollection 
       results = client.WriteAll(outputDirectory, "results.discomap")
       Status.Text = "The following file holds the links to each of the discovery results: <b>" + _ 
                                     Path.Combine(outputDirectory,"results.discomap") + "</b>"
      End Sub

      Public Sub PopulateGrid(client As DiscoveryClientProtocol) 
         Dim dt As DataTable = new DataTable()
         Dim dr AS DataRow 
 
         dt.Columns.Add(new DataColumn("Discovery Document") )
         dt.Columns.Add(new DataColumn("References") )
         dt.Columns.Add(new DataColumn("Type") )

     Dim entry As DictionaryEntry
     
         'Iterate over the discovered documents, displaying their types and any associated references.
         For Each entry in client.Documents
            dr = dt.NewRow()
        dr(0) = entry.Key
        dr(2) = entry.Value.GetType()
        dt.Rows.Add(dr)

        ' If the discovered  document is a discovery document, iterate over its references.	
        If TypeOf entry.Value Is DiscoveryDocument Then
           Dim discoDoc As DiscoveryDocument = entry.Value
           Dim discoref As DiscoveryReference
           For Each discoref in discoDoc.References
          dr = dt.NewRow()
          dr(1) = discoref.Url
          dr(2) = discoref.GetType()
          dt.Rows.Add(dr)
           Next
        End If   
    Next 	
         
        Dim dv As DataView = new DataView(dt)
    DiscoveryResultsGrid.DataSource = dv
    DiscoveryResultsGrid.DataBind()
     End Sub
  </SCRIPT>
  </HEAD> 
  <BODY>
    <H3> <p align="center"> Discovery Class Sample </p> </H3>
        <FORM RUNAT="SERVER">

    <hr>	
        Enter the URL to discover:
        <asp:textbox id=DiscoURL Columns=60 runat="SERVER" /><p>

        Enter the directory to Read/Save the Discovery results:
        <asp:textbox id=DiscoDir runat="SERVER" /> <p>

    <p align="center"> <asp:Button id=Discover Text="Discover!" onClick="Discover_Click" runat="SERVER"/> </p><p>

        <hr>
        <asp:label id="Status" runat="SERVER" /><p>
     <asp:DataGrid id="DiscoveryResultsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="true"
           runat="server">

         <HeaderStyle BackColor="DarkBlue" ForeColor="White">
         </HeaderStyle>

         <AlternatingItemStyle BackColor="LightYellow">
         </AlternatingItemStyle>

     </asp:DataGrid>
        </FORM>
  </BODY>

注解

Documents 调用 DiscoverDiscoverAny ResolveAll 和方法的过程中,将填充集合 ResolveOneLevelThe Documents collection is populated during invocations to the Discover, DiscoverAny, ResolveAll and ResolveOneLevel methods. 在调用 Discover 和方法时 DiscoverAny ,如果提供的 URL 是有效的发现文档,则会将该文档添加到 Documents 集合中。During invocations to the Discover and DiscoverAny methods, if the supplied URL is a valid discovery document, that document is added to the Documents collection. 在调用和方法的过程中 ResolveAll ResolveOneLevel ,集合中的有效发现文档引用 References 将添加到 Documents 集合中。During invocations to the ResolveAll and ResolveOneLevel methods, valid discovery document references in the References collection are added to the Documents collection.

适用于

另请参阅