我有一个非常闪烁的标签控件问题。
下面是一些重现问题的代码。
如何解决这个问题?
更新:前一种情况的解决方案(表单直接包含标签)是使 form.DoubleBuffered = true。但这不是一个通用的解决方案。比如SplitContainer里面有label怎么办?这是我的真实情况。
更新代码:
双缓冲标签.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace FlickerLabelTest
{
public class DoubleBufferedLabel : Label
{
public DoubleBufferedLabel()
{
DoubleBuffered = true;
}
}
}
DoubleBufferedSplitContainer.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace FlickerLabelTest
{
public class DoubleBufferedSplitContainer : SplitContainer
{
public DoubleBufferedSplitContainer()
{
DoubleBuffered = true;
}
}
}
Form1.cs:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace FlickerLabelTest
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void timer1_Tick(object sender, EventArgs e)
{
label1.Text += "0";
}
}
}
Form1.Designer.cs:
namespace FlickerLabelTest
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.label1 = new FlickerLabelTest.DoubleBufferedLabel();
this.splitContainer1 = new DoubleBufferedSplitContainer();
this.splitContainer1.Panel2.SuspendLayout();
this.splitContainer1.SuspendLayout();
this.SuspendLayout();
//
// timer1
//
this.timer1.Enabled = true;
this.timer1.Interval = 1;
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// label1
//
this.label1.Dock = System.Windows.Forms.DockStyle.Fill;
this.label1.Location = new System.Drawing.Point(0, 0);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(186, 262);
this.label1.TabIndex = 0;
this.label1.Text = "label1";
//
// splitContainer1
//
this.splitContainer1.Dock = System.Windows.Forms.DockStyle.Fill;
this.splitContainer1.Location = new System.Drawing.Point(0, 0);
this.splitContainer1.Name = "splitContainer1";
//
// splitContainer1.Panel2
//
this.splitContainer1.Panel2.Controls.Add(this.label1);
this.splitContainer1.Size = new System.Drawing.Size(284, 262);
this.splitContainer1.SplitterDistance = 94;
this.splitContainer1.TabIndex = 1;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.splitContainer1);
this.DoubleBuffered = true;
this.Name = "Form1";
this.Text = "Form1";
this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
this.splitContainer1.Panel2.ResumeLayout(false);
this.splitContainer1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.Timer timer1;
private DoubleBufferedLabel label1;
private DoubleBufferedSplitContainer splitContainer1;
}
}
程序.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
namespace FlickerLabelTest
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}