Typescript 如何刷新基于 vscode.TreeDataProvider 的 TreeView

最初填充TreeView并实例化TreeView."刷新"按钮调用自定义刷新功能以收集更新的数据.这些新信息存储在上下文中.globalState()

ctmInfrastructureProvider.refresh();不会更新TreeView.我还添加了事件侦听器.

export class CtmInfrastructureProvider implements vscode.TreeDataProvider<number> {

    private _onDidChangeTreeData: vscode.EventEmitter<number | null> = new vscode.EventEmitter<number | null>();
    readonly onDidChangeTreeData: vscode.Event<number | null> = this._onDidChangeTreeData.event;
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    constructor(private context: vscode.ExtensionContext) {
        let ctmInfrastructureCacheTmp: any = context.globalState.get('ctmInfrastructureCache');
        this.refresh();
    }
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}

以下是我的刷新功能:

let ctmInfrastructureRefreshEntry = vscode.commands.registerCommand(
        'ctm.infrastructure.refreshEntry',
        async () => {           
ctmInfrastructureDicsovery = discoverCtmInfrastructure();                     context.globalState.update('ctmInfrastructureCache',JSON.parse(ctmInfrastructureDicsovery));
ctmInfrastructureProvider.refresh();
        }
    );
    context.subscriptions.push(ctmInfrastructureRefreshEntry);

TreeDataProvider刷新()

    refresh(offset?: number): void {
            this.parseTree();
    }

    private parseTree(): void {
        this.text = this.ctmInfrastructureCache;
        this.tree = json.parseTree(this.ctmInfrastructureCache);
    }

我错过了什么？