如何将2个listview对象一起滚动？ [英] How do I scroll 2 listview objects together?
问题描述
您好，
ich创建一个包含2个Listviews的Windows窗体应用程序。我想一起滚动2个列表视图（垂直和水平）？我该怎么做？任何人有想法或示例代码？
谢谢！
Hello,
ich create an windows forms application with 2 Listviews. I want to scroll 2 listviews together (vertical and horizontal)? How can i do it? Anyone has an idea or example code?
Thankyou!
推荐答案
请尝试为此开发一些自定义控件
以下是我尝试过的方案示例代码，但可能有错误尝试纠正它。
我为listview开发了一个自定义控件类，将其命名为CustListView，并在该类中添加了scroll事件并在windows窗体中使用它。
Hi,
Please try to develop some custom controls for this
The below is the sample code I have tried with you scenario , but there may be bugs in it try to rectify it.
I developed a custom control class for listview named it as CustListView and added scroll event in that class and used it in windows forms.
using System.Windows.Forms;
namespace ListViewSharedScroll
{
class CustListView : ListView
{
public event ScrollEventHandler Scroll;
private const int WM_HSCROLL = 0x114;
private const int WM_VSCROLL = 0x115;
protected virtual void OnScroll(ScrollEventArgs e)
{
ScrollEventHandler handler = this.Scroll;
if (handler != null) handler(this, e);
}
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
if (m.Msg == WM_VSCROLL)
{ // Trap WM_VSCROLL
OnScroll(new ScrollEventArgs((ScrollEventType)(m.WParam.ToInt32() & 0xffff), -1, 0, ScrollOrientation.VerticalScroll));
}
else if (m.Msg == WM_HSCROLL)
{
OnScroll(new ScrollEventArgs((ScrollEventType)(m.WParam.ToInt32() & 0xffff),-1,0,ScrollOrientation.HorizontalScroll));
}
}
}
}
之后我在我的windows窗体代码中使用了这个自定义类
After that I used this custom class inside my windows forms code
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace ListViewSharedScroll
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);
int TopItemIndex = 0;
CustListView ListView1 = new CustListView();
CustListView ListView2 = new CustListView();
private void Form1_Load(object sender, EventArgs e)
{
ListView1.Size = new Size(201, 146);
ListView1.Margin = new Padding(3, 3, 3, 3);
ListView1.Location = new Point(48, 85);
ListView1.Scrollable = true;
ListView1.View = View.Details;
ListView2.Size = new Size(201, 146);
ListView2.Margin = new Padding(3, 3, 3, 3);
ListView2.Location = new Point(280, 85);
ListView2.Scrollable = true;
ListView2.View = View.Details;
ListView1.Columns.Add("Header", 100);
ListView1.Columns.Add("Details", 100);
ListView2.Columns.Add("Header", 100);
ListView2.Columns.Add("Details", 100);
for (int i = 0; i < 50; i++)
{
ListView1.Items.Add(new ListViewItem(new string[] { "Alpha"+i.ToString(), "Some details"+i.ToString() }));
ListView1.Items.Add(new ListViewItem(new string[] { "Bravo" + i.ToString(), "More details" + i.ToString() }));
ListView2.Items.Add(new ListViewItem(new string[] { "Alpha" + i.ToString(), "Some details" + i.ToString() }));
ListView2.Items.Add(new ListViewItem(new string[] { "Bravo" + i.ToString(), "More details" + i.ToString() }));
}
ListView1.Scroll += ListView1_Scroll;
ListView2.Scroll += ListView1_Scroll;
this.Controls.Add(ListView1);
this.Controls.Add(ListView2);
}
private void ListView1_Scroll(object sender, ScrollEventArgs e)
{
if (e.ScrollOrientation == ScrollOrientation.VerticalScroll)
{
if (TopItemIndex != ListView1.TopItem.Index || TopItemIndex != ListView2.TopItem.Index)
{
if (TopItemIndex != ListView1.TopItem.Index)
{
ListView1.EnsureVisible(ListView1.TopItem.Index);
ListView2.EnsureVisible(ListView1.TopItem.Index);
TopItemIndex = ListView1.TopItem.Index;
}
else
{
ListView1.EnsureVisible(ListView2.TopItem.Index);
ListView2.EnsureVisible(ListView2.TopItem.Index);
TopItemIndex = ListView2.TopItem.Index;
}
}
}
if (e.ScrollOrientation == ScrollOrientation.HorizontalScroll)
{
ScrollH(1);
}
}
private void ScrollH(int pixelsToScroll)
{
const Int32 LVM_FIRST = 0x1000;
const Int32 LVM_SCROLL = LVM_FIRST + 20;
SendMessage(ListView1.Handle, LVM_SCROLL, (IntPtr)pixelsToScroll, IntPtr.Zero);
SendMessage(ListView2.Handle, LVM_SCROLL, (IntPtr)pixelsToScroll, IntPtr.Zero);
}
}
}
我希望这将是一个很好的参考让你接近你的解决方案。
参考文章：
http://stackoverflow.com/questions/1851620/handling-scroll-event-on-listview-in-c-sharp [ ^ ]
http://stackoverflow.com/questions / 626315 / winforms-listview-remembering-scrolled-location-on-reload [ ^ ]
http://stackoverflow.com/questions/473148/c-sharp-listview-how-do-i-add-items-to-columns -2-3-and-4-etc [ ^ ]
http://stackoverflow.com/questions/7146567/winforms-listview-not-showing-items-in-detailsview [ ^ ]
http://stackoverflow.com / questions / 372034 / how-do-i-listen-for-scrolling-in-a listview [ ^ ]
http://stackoverflow.com/questions/372034/how -do-i-listen-for-rolling-in-a listview [ ^ ]
http://bytes.com/topic/c-sharp/answers/255418-scrolling-listview [ ^ ]
谢谢，
所有最佳
I hope this will be a good reference for you to approach your solution.
Referenced articles :
http://stackoverflow.com/questions/1851620/handling-scroll-event-on-listview-in-c-sharp[^]
http://stackoverflow.com/questions/626315/winforms-listview-remembering-scrolled-location-on-reload[^]
http://stackoverflow.com/questions/473148/c-sharp-listview-how-do-i-add-items-to-columns-2-3-and-4-etc[^]
http://stackoverflow.com/questions/7146567/winforms-listview-not-showing-items-in-detailsview[^]
http://stackoverflow.com/questions/372034/how-do-i-listen-for-scrolling-in-a-listview[^]
http://stackoverflow.com/questions/372034/how-do-i-listen-for-scrolling-in-a-listview[^]
http://bytes.com/topic/c-sharp/answers/255418-scrolling-listview[^]
Thanks,
All the Best
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