nssokenField在nsscrollview中

时间:2016-12-26 14:12:29

标签: c# objective-c cocoa nsscrollview

因为NStokenField不支持滚动条,我将它嵌入滚动视图中,但它不起作用...... 起初我使用NSTokenField的约束如下:

enter image description here

但似乎在输入大量标签时NTToken帧高度没有变化,而不是我试图动态增加它,这就是我所做的:

public override void ViewWillAppear ()
        {
            base.ViewWillAppear ();
            this.View.Window.MakeKeyAndOrderFront (this);
            TxtTagField.Changed += (o, e) => {
                ResizeTokenField ();
            };
        }

        void ResizeTokenField ()
        {
            //

            if (!TxtTagField.Cell.Wraps) {
                return;
            }

            CGRect frame = TxtTagField.Frame;
            var width = frame.Size.Width;
            var size = frame.Size;
            size.Height = nfloat.MaxValue;
            frame.Size = size;
            nfloat height = TxtTagField.Cell.CellSizeForBounds (frame).Height;
            if (height > 44) {
                var fr = TxtTagField.Frame;
                fr.Size = new CGSize (width, height + 23);
                InvokeOnMainThread (() => {
                    TxtTagField.Frame = fr;
                });
            }
}

但仍然没有结果:(

0 个答案:

没有答案