C# 中DataGridView和ListView闪烁问题的解决方法
方法一
首先定义类,将此类放在datagridview或ListView所在的窗体类外面,然后代码如下,
// <summary>
/// 双缓冲DataGridView,解决闪烁
/// 使用方法:在DataGridView所在窗体的InitializeComponent方法中更改控件类型实例化语句将
/// this.dataGridView1 = new System.Windows.Forms.DataGridView(); 屏蔽掉,添加下面这句即可
/// this.dataGridView1 = new DoubleBufferListView();
/// </summary>
class DoubleBufferDataGridView : DataGridView
{
public DoubleBufferDataGridView()
{
SetStyle(ControlStyles.DoubleBuffer | ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
//UpdateStatus.Continue;
UpdateStyles();
}
}
/// <summary>
/// 双缓冲ListView ,解决闪烁
/// 使用方法是在ListView 所在窗体的InitializeComponent方法中,更改控件类型实例化语句将
/// this.listView1 = new System.Windows.Forms.ListView(); 屏蔽掉, 添加下面语句即可
/// this.listView1 = new DoubleBufferListView();
/// </summary>
class DoubleBufferListView : ListView
{
public DoubleBufferListView()
{
SetStyle(ControlStyles.DoubleBuffer | ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
UpdateStyles();
}
}
方法二
直接写一个扩展方法,使用反射,直接上代码,将此类定义给DataGirdView或ListView所在的窗体类外面即可
public static class DoubleBufferDataGridView
{
/// <summary>
/// 双缓冲,解决闪烁问题
/// </summary>
/// <param name="dgv"></param>
/// <param name="flag"></param>
public static void DoubleBufferedDataGirdView(this DataGridView dgv, bool flag)
{
Type dgvType = dgv.GetType();
PropertyInfo pi = dgvType.GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic);
pi.SetValue(dgv, flag, null);
}
}
public static class DoubleBufferListView
{
/// <summary>
/// 双缓冲,解决闪烁问题
/// </summary>
/// <param name="lv"></param>
/// <param name="flag"></param>
public static void DoubleBufferedListView(this ListView lv, bool flag)
{
Type lvType = lv.GetType();
PropertyInfo pi = lvType.GetProperty("DoubleBuffered",
BindingFlags.Instance | BindingFlags.NonPublic);
pi.SetValue(lv, flag, null);
}
}
//调用方法
public Form1()
{
InitializeComponent();
DataGridView1.DoubleBufferedDataGirdView(true);
}
其实很简单的,一看代码就能明白,使用双缓冲解决闪烁问题
当你遇到挫折和困难时,千万记住永远永远永远不要放弃