DiscoveryClientProtocol.Documents プロパティとは何？わかりやすく解説 Weblio辞書

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.NET Framework クラスライブラリリファレンス

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DiscoveryClientProtocol.Documents プロパティ

探索ドキュメントのコレクションを取得します。

名前空間: System.Web.Services.Discovery
アセンブリ: System.Web.Services (system.web.services.dll 内)
構文

Visual Basic (宣言)

Public ReadOnly Property
 Documents As DiscoveryClientDocumentCollection

Visual Basic (使用法)

Dim instance As DiscoveryClientProtocol
Dim value As DiscoveryClientDocumentCollection

value = instance.Documents

public DiscoveryClientDocumentCollection Documents { get;
 }

C++

public:
property DiscoveryClientDocumentCollection^ Documents {
    DiscoveryClientDocumentCollection^ get ();
}

/** @property */
public DiscoveryClientDocumentCollection get_Documents ()

JScript

public function get Documents
 () : DiscoveryClientDocumentCollection

プロパティ値
見つかった探索ドキュメントのコレクションを表す DiscoveryClientDocumentCollection。

解説

Documents コレクションは、Discover、DiscoverAny、ResolveAllResolveOneLevel の各メソッドの呼び出し時に作成されます。Discover メソッドおよび DiscoverAny メソッドを呼び出すと、指定された URL が有効な探索ドキュメントであった場合は、このドキュメントが Documents コレクションに追加されます。ResolveAll メソッドおよび ResolveOneLevel メソッドを呼び出すと、References コレクション内の有効な探索ドキュメント参照が Documents コレクションに追加されます。

使用例

XML Web サービス探索時に探索された Documents プロパティ内のドキュメントに関する詳細を DataGrid に読み込む Web フォームのコード例を次に示します。PopulateGrid メソッドは、DiscoverAny 呼び出しおよびそれに続く ResolveAll 呼び出しの結果を DataGrid に設定します。

Visual Basic

<%@ 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>

<%@ 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>

プラットフォーム

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
DiscoveryClientProtocol クラス
DiscoveryClientProtocol メンバ
System.Web.Services.Discovery 名前空間
DiscoveryClientDocumentCollection クラス
DiscoverAny
Discover
ResolveOneLevel
ResolveAll

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DiscoveryClientProtocol.Documents プロパティとは？わかりやすく解説