Udostępnij za pośrednictwem

ServerDocument.CachedData Property

  • Artykuł

Gets a CachedData object that represents the cached data that is contained in the document.

Namespace:  Microsoft.VisualStudio.Tools.Applications
Assembly:  Microsoft.VisualStudio.Tools.Applications.ServerDocument (in Microsoft.VisualStudio.Tools.Applications.ServerDocument.dll)

Syntax

'Declaration
Public ReadOnly Property CachedData As CachedData
    Get

public CachedData CachedData { get; }

Property Value

Type: Microsoft.VisualStudio.Tools.Applications.CachedData
The cached data that is contained in the document.

Remarks

The cached data in a document is stored in a hierarchy of objects. The CachedData object returned by this property is the first object in that hierarchy. For more information, see Accessing Data in Documents on the Server.

Examples

The following code example creates a new ServerDocument, and then uses the CachedData property to display the names of the objects in the data cache.

This example requires:

  • A console application project or some other non-Office project.

  • References to the following assemblies:

    • Microsoft.VisualStudio.Tools.Applications.ServerDocument.dll and Microsoft.VisualStudio.Tools.Applications.Runtime.dll (if the project targets the .NET Framework 4).

      or

    • Microsoft.VisualStudio.Tools.Applications.ServerDocument.v10.0.dll and Microsoft.VisualStudio.Tools.Applications.Runtime.v9.0.dll (if the project targets the .NET Framework 3.5).

  • Imports (for Visual Basic) or using (for C#) statements for Microsoft.VisualStudio.Tools.Applications and Microsoft.VisualStudio.Tools.Applications.Runtime namespaces at the top of your code file.

Private Sub DisplayDataCacheContents(ByVal documentPath As String)
    Dim runtimeVersion As Integer = 0
    Dim serverDocument1 As ServerDocument = Nothing

    Try
        runtimeVersion = ServerDocument.GetCustomizationVersion(documentPath)
        If runtimeVersion <> 3 Then
            MessageBox.Show("This document does not have a Visual Studio Tools for Office " & _
                "customization, or it has a customization that was created with a version of " & _
                "the runtime that is incompatible with this version of the ServerDocument class.")
            Return
        End If

        If ServerDocument.IsCacheEnabled(documentPath) Then
            serverDocument1 = New ServerDocument(documentPath)
            Dim stringBuilder1 As New System.Text.StringBuilder()

            ' Display all of the cached data items 
            ' in the document.
            Dim hostItem1 As CachedDataHostItem
            For Each hostItem1 In serverDocument1.CachedData.HostItems
                stringBuilder1.Append(vbLf & "Namespace and class: ")
                stringBuilder1.Append(hostItem1.Id & vbLf)
                Dim dataItem1 As CachedDataItem
                For Each dataItem1 In hostItem1.CachedData
                    stringBuilder1.Append("     Data item: ")
                    stringBuilder1.Append(dataItem1.Id & vbLf)
                Next dataItem1
            Next hostItem1
            MessageBox.Show(stringBuilder1.ToString())
        Else
            MessageBox.Show("The specified document does not have cached data.")
        End If

    Catch ex As System.IO.FileNotFoundException
        System.Windows.Forms.MessageBox.Show("The specified document does not exist.")
    Catch ex As UnknownCustomizationFileException
        System.Windows.Forms.MessageBox.Show("The specified document has a file " & _
            "extension that is not supported by Visual Studio Tools for Office.")
    Finally
        If Not (serverDocument1 Is Nothing) Then
            serverDocument1.Close()
        End If
    End Try
End Sub

private void DisplayDataCacheContents(string documentPath)
{
    int runtimeVersion = 0;
    ServerDocument serverDocument1 = null;

    try
    {
        runtimeVersion = ServerDocument.GetCustomizationVersion(documentPath);

        if (runtimeVersion != 3)
        {
            MessageBox.Show("This document does not have a Visual Studio Tools for " +
                "Office customization, or it has a customization that was created with " +
                "a version of the runtime that is incompatible with this version of the " +
                "ServerDocument class.");
            return;
        }

        if (ServerDocument.IsCacheEnabled(documentPath))
        {
            serverDocument1 = new ServerDocument(documentPath);
            System.Text.StringBuilder stringBuilder1 =
                new System.Text.StringBuilder();

            // Display all of the cached data items 
            // in the document.
            foreach (CachedDataHostItem hostItem1 in
                serverDocument1.CachedData.HostItems)
            {
                stringBuilder1.Append("\nNamespace and class: ");
                stringBuilder1.Append(hostItem1.Id + "\n");
                foreach (CachedDataItem dataItem1 in
                    hostItem1.CachedData)
                {
                    stringBuilder1.Append("     Data item: ");
                    stringBuilder1.Append(dataItem1.Id + "\n");
                }
            }
            MessageBox.Show(stringBuilder1.ToString());
        }
        else
        {
            MessageBox.Show("The specified document does not have cached data.");
        }
    }
    catch (System.IO.FileNotFoundException)
    {
        System.Windows.Forms.MessageBox.Show("The specified document does not exist.");
    }
    catch (UnknownCustomizationFileException)
    {
        System.Windows.Forms.MessageBox.Show("The specified document has a file " +
            "extension that is not supported by Visual Studio Tools for Office.");
    }
    finally
    {
        if (serverDocument1 != null)
            serverDocument1.Close();
    }
}

.NET Framework Security

See Also

Reference

ServerDocument Class

Microsoft.VisualStudio.Tools.Applications Namespace

Other Resources

Caching Data

Accessing Data in Documents on the Server