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Metodo IVsExtensionManager.CreateExtension

Metodo factory dell' estensione.

Spazio dei nomi:  Microsoft.VisualStudio.ExtensionManager
Assembly:  Microsoft.VisualStudio.ExtensionManager (in Microsoft.VisualStudio.ExtensionManager.dll)

Sintassi

'Dichiarazione
Function CreateExtension ( _
    extensionPath As String _
) As IExtension
IExtension CreateExtension(
    string extensionPath
)
IExtension^ CreateExtension(
    String^ extensionPath
)
abstract CreateExtension : 
        extensionPath:string -> IExtension
function CreateExtension(
    extensionPath : String
) : IExtension

Parametri

  • extensionPath
    Tipo: String

    Percorso di un file manifesto VSIX.

Valore restituito

Tipo: Microsoft.VisualStudio.ExtensionManager.IExtension
L'oggetto di IExtension che contiene i metadati nel manifesto VSIX per l'estensione.

Note

Sebbene questa API supporta l'infrastruttura di Gestione estensioni , è consigliabile non utilizzarla in quanto è soggetto a modifiche.

Esempi

The following example uses GetEnabledExtensionContentLocations to get the locations of all extensions of a particular custom type. Utilizza quindi CreateExtension per accedere agli altri metadati per ogni estensione di ricerca e per ottenere il nome. Dopo avere salvato i nomi e le informazioni sul percorso, crea i comandi di menu per ogni estensione.

// This is the CommandID of the placeholder menu item,  
// as defined in the .vsct file. 
int CmdIdBase = 0x103;

// These lists will store name and path information. 
private ArrayList SkinNames = new ArrayList();
private ArrayList SkinPaths = new ArrayList();

// Call this from Initialize(). 
private void InitSkinList()
{
    var mcs = GetService(typeof(IMenuCommandService)) 
        as OleMenuCommandService;
    int counter = CmdIdBase;

    // Get the Extension Manager service. 
    var ExtMgrSvc = GetService(typeof(SVsExtensionManager)) 
        as IVsExtensionManager;

    // Iterate through installed extensions. 
    var attributes = new Dictionary<string, string>();
    attributes.Add("Type", "Skin");
    foreach (string SkinPath
        in ExtMgrSvc.GetEnabledExtensionContentLocations(
        "CustomExtension", attributes))
    {
        // Store the name and path information.
        SkinPaths.Add(SkinPath);
        SkinNames.Add(ExtMgrSvc.CreateExtension(SkinPath).Header.Name);

        // Create a CommandID for the new menu item. 
        var cmdID = new CommandID(
            GuidList.guidVSSkinHostCmdSet, counter);

        // Create the menu item and add its event handlers. 
        var mc = new OleMenuCommand(
            new EventHandler(OnSkinExec), cmdID);
        mc.BeforeQueryStatus += new EventHandler(OnSkinQueryStatus);
        mcs.AddCommand(mc);

        counter ++;
    }
}

private void OnSkinQueryStatus(object sender, EventArgs e)
{
    var menuCommand = sender as OleMenuCommand;
    if (null != menuCommand)
    {
        // Determine which menu item was queried. 
        int skinIndex = menuCommand.CommandID.ID - this.CmdIdBase;
        if (skinIndex >= 0 && skinIndex < this.SkinNames.Count)
        {
            // Set the text.
            menuCommand.Text = this.SkinNames[skinIndex] as string;
        }
    }
}

private void OnSkinExec(object sender, EventArgs e)
{
    var menuCommand = sender as OleMenuCommand;
    if (null != menuCommand)
    {
        // Get the name of the skin from the menu item. 
        string skinName = menuCommand.Text;

        // Locate the name in the list of skins.  
        int i = this.SkinNames.IndexOf(skinName);

        // Get the corrsponding path. 
        var skinPath = SkinPaths[i] as string;

        if (SkinNames.Count > 0)
        {         
            if (File.Exists(skinPath) || Directory.Exists(skinPath))
            {
                // Put code here to apply the skin extension...
                MessageBox.Show("Skin " + skinName + " found:\r\n" 
                    + skinPath + ". \r\n\r\nApplying skin...");
            }
           else MessageBox.Show("Could not find skin " + skinName);
        }
    }
}

Sicurezza di .NET Framework

Vedere anche

Riferimenti

IVsExtensionManager Interfaccia

Spazio dei nomi Microsoft.VisualStudio.ExtensionManager