创建ListView的滚动条出现了事件 [英] Create ListView ScrollBar Appeared Event

问题描述

我有我想要的VScrollBar出现时创建一个事件一个ListView。我actully不想水平滚动条，并且只要VScrollbar看来我要调整列宽，使其适合窗口。我已经可以检查一个滚动条的可见性，但我不知道什么时候出现滚动条这是引发事件的名称。
这里是我的code：

I have a ListView in which i want to create an event when the VScrollBar appears. I actully dont want a horizontal scrollbar and whenever the VScrollbar appears i want to resize the columns so that it fits the window. I already can check for the visiblity of a scrollbar but i dont know the name of the event which is triggered when the ScrollBars appear. Here is my code :

    private const int WS_VSCROLL = 0x200000;
    private const int GWL_STYLE = -16;
    [DllImport("user32.dll")]
    public static extern int GetWindowLong(IntPtr hWnd, int Index);
    private static bool IsScrollbarVisible(IntPtr hWnd)
    {
        bool bVisible = false;
        int nMessage = WS_VSCROLL;
        int nStyle = GetWindowLong(hWnd, GWL_STYLE);
        bVisible = ((nStyle & nMessage) != 0);
        return bVisible;
    }

和是这样的：

    if (IsScrollbarVisible(listview.Handle))
    {
          columnHeader1.Width = listview.ClientRectangle.Width - (columnHeader2.Width + columnHeader3.Width);
    }

有人请帮助我！

推荐答案

ClientSizeChanged事件会火，但得到它的工作正确的，我们必须添加的BeginUpdate（）和 EndUpdate（） ..

ClientSizeChanged Event will fire but to get it work correct we have to add BeginUpdate() and EndUpdate()..

这code做的一切：

    private void listview_ClientSizeChanged(object sender, EventArgs e)
    {
        listview.BeginUpdate();
        if (IsScrollbarVisible(listview.Handle))
        {
            columnHeader1.Width = listview.ClientRectangle.Width - (columnHeader2.Width + columnHeader3.Width);
        }
        listview.EndUpdate();
    }

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