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Георгий
Asked:2022-07-01 03:28:37 +0000 UTC2022-07-01 03:28:37 +0000 UTC

动态创建大量元素

  • 772

flowLayoutPanelN我在 中创建了许多元素Panel，并flowLayoutPanelN添加了Label. 它们的数量取决于数据库中的记录数。一切正常，但并不完全如我们所愿......它会冻结或向上滚动，直到所有元素出现。我怎样才能摆脱这个。

这是代码

flowLayout = new FlowLayoutPanel[data.Count];
name_oneOils = new Label[data.Count];
check = new CheckBox[data.Count];
for (int i = data.Count - 1; i >= 0; i--)
{
    flowLayout[i] = new FlowLayoutPanel
    {
        AutoSize = true,
        BorderStyle = BorderStyle.FixedSingle,
        Dock = DockStyle.Top,
        FlowDirection = FlowDirection.LeftToRight
    };
    panel.Controls.Add(flowLayout[i]);
    name_oneOils[i] = new Label
    {
        Anchor = AnchorStyles.None,
        AutoSize = true,
        Font = new Font("Malgun Gothic", 10.8F, FontStyle.Regular, GraphicsUnit.Point, ((byte)(0))),
        Name = $"name_oneOils{i}",
        Text = data[i][0],
        TextAlign = ContentAlignment.MiddleCenter
    };
    name_oneOils[i].Click += new EventHandler(name_oneOils_Click);
    flowLayout[i].Controls.Add(name_oneOils[i]);
    check[i] = new CheckBox
    {
        Name = $"check{i}",
        Checked = Convert.ToBoolean(data[i][2])
    };
    flowLayout[i].Controls.Add(check[i]);
}

https://disk.yandex.ru/i/f9x7xvtF18Y-ng记录了应用程序是如何工作的

如果链接未激活： 在此处输入图像描述

c#

1 个回答

  1. Best Answer

    试试这样：

    • 将添加到高级面板的内容移到循环的末尾
    • 添加 SuspendLayout
    • 添加缓冲
    • 创建字体 1 次
    Font font = new Font("Malgun Gothic", 10.8F, FontStyle.Regular, GraphicsUnit.Point, byte.MinValue);
panel.DoubleBuffered = true; // это надо сделать 1 раз при создании этой панели
panel.SuspendLayout();
for (int i = data.Count - 1; i >= 0; i--)
{
    flowLayout[i] = new FlowLayoutPanel
    {
        AutoSize = true,
        BorderStyle = BorderStyle.FixedSingle,
        Dock = DockStyle.Top,
        FlowDirection = FlowDirection.LeftToRight
    };
    name_oneOils[i] = new Label
    {
        Anchor = AnchorStyles.None,
        AutoSize = true,
        Font = font,
        Name = $"name_oneOils{i}",
        Text = data[i][0],
        TextAlign = ContentAlignment.MiddleCenter
    };
    name_oneOils[i].Click += new EventHandler(name_oneOils_Click);
    flowLayout[i].Controls.Add(name_oneOils[i]);
    check[i] = new CheckBox
    {
        Name = $"check{i}",
        Checked = Convert.ToBoolean(data[i][2])
    };
    flowLayout[i].Controls.Add(check[i]);
    panel.Controls.Add(flowLayout[i]);
}
panel.ResumeLayout();
    • 3

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