如何使用 MEF（托管扩展性框架）从目录加载 dll

发布于 2024-07-22 05:52:35 字数 1198 浏览 7 评论 0原文

我目前正在使用 MEF 并面临一些问题，

我想要的是从目录加载 dll。

首先，我扫描目录并将两个内容保存在

各自 DLL 的字典名称属性中（作为字符串）

和模块名称（作为字符串），

这里是 ScanDirectory() 代码

private void ScanPluginDirectory()
{
    catalog = new AggregateCatalog();

    catalog.Catalogs.Add(new DirectoryCatalog(@"..\..\plugin"));            
    container = new CompositionContainer(catalog);

    batch = new CompositionBatch();
    batch.AddPart(this);        

    container.Compose(batch);    

    pluginDictionary = new Dictionary<String, String>();
    foreach (IFilter filter in filters)
    {
        Type t = filter.GetType();
        pluginDictionary.Add(filter.Name, t.Module.Name);
    }
}

，并在复选框列表中显示它们的名称。从复选框中选择 dll 后。

我有导入语句，因为

[Import]
public IEnumerable<IFilter> filters { get; set; }

目前我的程序运行良好。我所做的是当我从复选框列表中检查插件时。它将其移动到“loaded”目录中，并且 QueryPlugin() 方法会查找“loaded”目录以搜索插件。

从复选框列表中取消选中插件后。我将它移出“已加载”目录...

我想要的是使用batch.RemovePart()方法来摆脱这种将dll从一个目录快速移动到另一个目录的情况...

注意：我没有手动添加插件批量使用

batch.AddPart(new DemoFilter1());

而不是这个我使用 DirectoryCatalog();;

原文

i am currently working with MEF and facing some problems

what i want is to load dlls from the directory.

first i scan the directory and save two things in dictionary

Name property from respective DLL (as string)

and Module Name (as string)

here is ScanDirectory() code

private void ScanPluginDirectory()
{
    catalog = new AggregateCatalog();

    catalog.Catalogs.Add(new DirectoryCatalog(@"..\..\plugin"));            
    container = new CompositionContainer(catalog);

    batch = new CompositionBatch();
    batch.AddPart(this);        

    container.Compose(batch);    

    pluginDictionary = new Dictionary<String, String>();
    foreach (IFilter filter in filters)
    {
        Type t = filter.GetType();
        pluginDictionary.Add(filter.Name, t.Module.Name);
    }
}

and show their name in a checkbox list. upon selection of dll from checkbox.

i have import statement as

[Import]
public IEnumerable<IFilter> filters { get; set; }

currently my program is running fine. what i did is when i check a plugin from checkbox list. it moves it into "loaded" directory and and they QueryPlugin() method looks into "loaded" directory to search for plugins.

upon unchecking plugin from checkbox list. i move it out of "loaded" directory...

What i want is to use batch.RemovePart() method to get rid of this rapid moving of dlls from one directory to other....

NOTE: i am not adding plugins manually into batch using