예제 #1
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 public override void Remove(TreeItemBase treeItem) => this._childItems.Remove(treeItem);
예제 #2
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 public abstract void Remove(TreeItemBase c);
예제 #3
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 public override void Add(TreeItemBase treeItem) => this._childItems.Add(treeItem);
예제 #4
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 public abstract void Add(TreeItemBase c);