识别Web浏览器的垂直滚动在C#中的最后位置到达

我已经在Winforms的WebBrowser控件中加载了HTML内容.我想在最后一个位置达到垂直滚动时附加另一个HTML内容.因此,我坚持如何实现它.

这是我的示例代码：

WebBrowser web = new WebBrowser();
web.Document.Write("Some html content");
web.Document.Window.AttachEventHandler("onscroll", OnScrollEventHandler); // Create scroll event for browser control

private void OnScrollEventHandler(object sender, EventArgs e)
{
    // Identify vertical scroll reached on last position and append another HTML
}

提前致谢.

解决方法:

这会起作用

 class KeyHandle
 {
    private static Int32 WM_KEYDOWN = 0x100;
    private static Int32 WM_KEYUP = 0x101;

    [return: MarshalAs(UnmanagedType.Bool)]
    [DllImport("user32.dll", SetLastError = true)]
    static extern bool PostMessage(IntPtr hWnd, int Msg, 
   System.Windows.Forms.Keys wParam, int lParam);

 public static void SendKey(IntPtr hWnd, System.Windows.Forms.Keys key)
  {
      PostMessage(hWnd, WM_KEYDOWN, key, 0);
   }
 }

调用方式：

     KeyHandle.SendKey(this.webBrowser.Handle, Keys.PageDown);

标签：webbrowser-control,c,net,user-interface,winforms
来源： https://codeday.me/bug/20191108/2008915.html