将节点添加到TreeView会导致Thread-Exception
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我有一个小问题。
我制作了一个类来管理我的预制件（水平编辑器的预定义对象）。
在开始时加载预制件时，它将为类别和每个预制件创建TreeNodes并将其添加到构造函数知道的TreeView中。
已知的问题是，每次将一个节点添加到另一个节点时，都会导致\“ InvalidOperationException \”，因为它不是正确的线程。我应该调用控件。
我尝试过，它是同一线程-仅在\“ LoadForm \”-Event中调用。
这是我的PrefabManager类代码：
public PrefabManager(TreeView tree)
{
_tree = tree;
_prefabs = new List<Prefab>();
}
public void LoadPrefabs()
{
if (!Directory.Exists(_prefabPath))
Directory.CreateDirectory(_prefabPath);
_tree.Nodes[\"RootNode\"].Nodes.Clear();
foreach (string file in Directory.GetFiles(_prefabPath, \"*.pref\", SearchOption.AllDirectories))
{
Prefab prefab = Prefab.Load(file);
if (_prefabs.Count > 0)
if (_prefabs.Where(pfab => pfab.CreationName == prefab.CreationName).FirstOrDefault() != null) continue;
TreeNode categoryNode = GetCategoryOrCreate(prefab.Category);
TreeNode prefabNode = new TreeNode(prefab.CreationName)
{
ImageIndex = 2,
SelectedImageIndex = 2,
Tag = \"Prefab\"
};
MessageBox.Show(System.Threading.Thread.CurrentThread.ManagedThreadId.ToString());
categoryNode.Nodes.Add(prefabNode);
_prefabs.Add(prefab);
}
}
_flagSystem.AddFlag(\"PrefabManager\", new PrefabManager(tpage_prefabs_tree));
//...
_flagSystem.GetFlag<PrefabManager>(\"PrefabManager\").LoadPrefabs();
//LoadPrefabs-Method:
categoryNode.Nodes.Add(prefabNode);
bei System.Windows.Forms.TreeNode.Realize(Boolean insertFirst)
bei System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
bei System.Windows.Forms.TreeNodeCollection.Add(TreeNode node)
bei GooEditor.Prefabs.PrefabManager.GetCategoryOrCreate(String category) in E:\\Sicherung\\Visual Studio 2008\\Projects\\BioHazard\\GooEditor\\Prefabs\\PrefabManager.cs:Zeile 87.
bei GooEditor.Prefabs.PrefabManager.LoadPrefabs() in E:\\Sicherung\\Visual Studio 2008\\Projects\\BioHazard\\GooEditor\\Prefabs\\PrefabManager.cs:Zeile 40.
bei GooEditor.EditorForm.LoadContent() in E:\\Sicherung\\Visual Studio 2008\\Projects\\BioHazard\\GooEditor\\EditorForm.cs:Zeile 202.
bei GooEditor.Editor.LoadContent() in E:\\Sicherung\\Visual Studio 2008\\Projects\\BioHazard\\GooEditor\\Editor.cs:Zeile 117.
bei Microsoft.Xna.Framework.Game.Initialize()
bei GooEngine.Core.Application.Initialize() in E:\\Sicherung\\Visual Studio 2008\\Projects\\BioHazard\\GooEngine\\Core\\Application.cs:Zeile 85.
bei Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
bei Microsoft.Xna.Framework.Game.Run()
bei XNAViewer.XNAViewer.StartGameLoop(Object game)
bei System.Threading.ThreadHelper.ThreadStart_Context(Object state)
bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
bei System.Threading.ThreadHelper.ThreadStart(Object obj)
没有找到相关结果
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