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DiscoveryClientProtocol.Documents Propriété

  • Référence

Définition

Espace de noms:
System.Web.Services.Discovery
Assembly:
System.Web.Services.dll

Obtient une collection de documents de découverte.

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

Valeur de propriété

DiscoveryClientDocumentCollection

DiscoveryClientDocumentCollection représentant la collection des documents de découverte trouvés.

Exemples

L’exemple de code suivant est un formulaire web qui remplit un DataGrid avec les détails sur les documents dans la propriété découverte lors de la Documents découverte des services Web XML. La PopulateGrid méthode remplit le DataGrid avec les résultats d’un DiscoverAny appel suivi d’un appel à ResolveAll.

Important

Cet exemple comprend une zone de texte qui accepte une entrée d'utilisateur, ce qui constitue une menace potentielle pour la sécurité. Par défaut, les pages web ASP.NET vérifient que l’entrée d’utilisateur n’inclut pas de script ou d’éléments HTML. Pour plus d’informations, consultez Vue d’ensemble des attaques de script.

<%@ 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>

Remarques

La Documents collection est remplie pendant les appels aux Discoverméthodes , DiscoverAnyet ResolveAllResolveOneLevel . Pendant les appels aux Discover méthodes et DiscoverAny , si l’URL fournie est un document de découverte valide, ce document est ajouté à la Documents collection. Pendant les appels aux ResolveAll méthodes et ResolveOneLevel , des références de document de découverte valides dans la References collection sont ajoutées à la Documents collection.

S’applique à

Voir aussi