scroll

问题 According to Flutter's issue here , The Auto-Scroll to Index where each cell/item has dynamic height is currently not supported. I have tried another solution but no works. so, What's a temporary solution to make ListView with AutoScroll for dynamic height? Any Idea? 回答1: Your question so, What's a temporary solution to make ListView with AutoScroll for dynamic height? Screen Record solution scroll-to-index package This package provides the scroll to index mechanism for fixed/variable row

问题 I want to prevent scrolling with the mousewheel in a panel with a scrollbar, how can ido this? I have seen this suggested, but it's not working: panel.MouseWheel += new MouseEventHandler(MouseWheel); void MouseWheel(object sender, MouseEventArgs e) { ((HandledMouseEventArgs)e).Handled = true; } 回答1: Try inheriting your own Panel and just comment out the OnMouseWheel call: public class WheelessPanel : Panel { protected override void OnMouseWheel(MouseEventArgs e) { // base.OnMouseWheel(e); } }

问题 I want to prevent scrolling with the mousewheel in a panel with a scrollbar, how can ido this? I have seen this suggested, but it's not working: panel.MouseWheel += new MouseEventHandler(MouseWheel); void MouseWheel(object sender, MouseEventArgs e) { ((HandledMouseEventArgs)e).Handled = true; } 回答1: Try inheriting your own Panel and just comment out the OnMouseWheel call: public class WheelessPanel : Panel { protected override void OnMouseWheel(MouseEventArgs e) { // base.OnMouseWheel(e); } }

问题 I want to prevent scrolling with the mousewheel in a panel with a scrollbar, how can ido this? I have seen this suggested, but it's not working: panel.MouseWheel += new MouseEventHandler(MouseWheel); void MouseWheel(object sender, MouseEventArgs e) { ((HandledMouseEventArgs)e).Handled = true; } 回答1: Try inheriting your own Panel and just comment out the OnMouseWheel call: public class WheelessPanel : Panel { protected override void OnMouseWheel(MouseEventArgs e) { // base.OnMouseWheel(e); } }

问题 I want to prevent scrolling with the mousewheel in a panel with a scrollbar, how can ido this? I have seen this suggested, but it's not working: panel.MouseWheel += new MouseEventHandler(MouseWheel); void MouseWheel(object sender, MouseEventArgs e) { ((HandledMouseEventArgs)e).Handled = true; } 回答1: Try inheriting your own Panel and just comment out the OnMouseWheel call: public class WheelessPanel : Panel { protected override void OnMouseWheel(MouseEventArgs e) { // base.OnMouseWheel(e); } }

问题 What am I expecting is a page that is not overflowing since there is no content and hence have no need to scroll. But what I am getting is a page that is empty but it still scrolls, and isn't just a cosmetic issue of the scroll bars appearing on the touch event. It actually offsets the background in the view port. I've been trying everything that Google has thrown at me to make sure the width and height of the body block is the size of the viewport and no greater. I've also tried over-flow:

问题 What am I expecting is a page that is not overflowing since there is no content and hence have no need to scroll. But what I am getting is a page that is empty but it still scrolls, and isn't just a cosmetic issue of the scroll bars appearing on the touch event. It actually offsets the background in the view port. I've been trying everything that Google has thrown at me to make sure the width and height of the body block is the size of the viewport and no greater. I've also tried over-flow:

问题 What am I expecting is a page that is not overflowing since there is no content and hence have no need to scroll. But what I am getting is a page that is empty but it still scrolls, and isn't just a cosmetic issue of the scroll bars appearing on the touch event. It actually offsets the background in the view port. I've been trying everything that Google has thrown at me to make sure the width and height of the body block is the size of the viewport and no greater. I've also tried over-flow:

问题 I'm using React and I need to get a scroll direction in order to do some stuff. I have a working code but I'm clueless on how to store and update previous scroll position. Here's my code: componentDidMount(){ const prev = window.scrollY; window.addEventListener('scroll', e => this.handleNavigation(e, prev); } Visible problem here is that componentDidMount fires only once so when I try to do the following: handleNavigation = (e, prev) =>{ const window = e.currentTarget; if(prev > window

问题 I'm using React and I need to get a scroll direction in order to do some stuff. I have a working code but I'm clueless on how to store and update previous scroll position. Here's my code: componentDidMount(){ const prev = window.scrollY; window.addEventListener('scroll', e => this.handleNavigation(e, prev); } Visible problem here is that componentDidMount fires only once so when I try to do the following: handleNavigation = (e, prev) =>{ const window = e.currentTarget; if(prev > window