C# Winform 实现Ajax效果自定义按钮
技术看点
- WinForm自定义控件的使用
- 自定义控件gif动画的播放
需求及效果
又来一波 C# GDI自定义控件show 。这个控件已经使用几年了，最近找出来重构一下。原来是没有边框的，那么导致导航的功能不是很突出。本来想加个效果：在执行单击时显示Loading动画，在执行完单击事件后恢复原样。这就是网页里见到的局部刷新，Ajax常用的场景。需求来自几年前一个智能储物柜项目，人机界面有个美工设计好的效果图，为了省事和通用，需要一个透明的按钮来实现导航的任务。就是控件只是设计时可见，运行时不可见。
关键点说明
1）、GraphicsPath实现矩形的圆角羽化处理
using (GraphicsPath path = new GraphicsPath())
{
#region 羽化，圆角处理
path.StartFigure();
path.AddArc(new Rectangle(new Point(rect.X, rect.Y), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.X + Radius, rect.Y), new Point(rect.Right - Radius, rect.Y));
path.AddArc(new Rectangle(new Point(rect.Right - * Radius, rect.Y), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.Right, rect.Y + Radius), new Point(rect.Right, rect.Bottom - Radius));
path.AddArc(new Rectangle(new Point(rect.Right - * Radius, rect.Bottom - * Radius), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.Right - Radius, rect.Bottom), new Point(rect.X + Radius, rect.Bottom));
path.AddArc(new Rectangle(new Point(rect.X, rect.Bottom - * Radius), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.X, rect.Bottom - Radius), new Point(rect.X, rect.Y + Radius));
path.CloseFigure();
#endregion
要点就是画几段弧线和矩形连接起来。透明就是用了Color.FromArgb加上透明度，然后填充GraphicsPath形成透明区域。
g.FillPath(new SolidBrush(Color.FromArgb(, BackColor)), path);
2)、单窗体应用如何模块化
窗体只有一个，但操作界面好多个，由于是无人值守的应用。那么老是切换窗体操作是非常不方便的。工作区域是一个容器Panel,把每个操作界面定义成一个Panel作为只容器。
public partial class DepositBizPanel : UserControl
{
private BackgroundStyle backgroundStyle = BackgroundStyle.Green;
/// <summary>
/// 主题风格
/// </summary>
public BackgroundStyle BackgroundStyle
{
get { return backgroundStyle; }
set
{
backgroundStyle = value;
switch (value)
{
case GreenlandExpressBox.BackgroundStyle.Blue:
BackgroundImage = Properties.Resources.jbblue;
break;
case GreenlandExpressBox.BackgroundStyle.Orange:
BackgroundImage = Properties.Resources.jborange;
break;
case GreenlandExpressBox.BackgroundStyle.Green:
BackgroundImage = Properties.Resources.jbgreen;
break;
}
Invalidate();
}
} public Panel ParentPanel
{
get;
set;
} public Bitmap QR_Barcode
{
get { return (Bitmap)pbxBarcode.Image; }
set { pbxBarcode.Image = value; }
} public DialogResult PanelDiagResult
{
get;
set;
} public DepositBizPanel(Panel parent, Bitmap barcode, BackgroundStyle style)
{
InitializeComponent();
DoubleBuffered = true;
ParentPanel = parent;
QR_Barcode = barcode;
BackgroundStyle = style;
} private void btnback_Click(object sender, EventArgs e)
{
foreach (Control panel in ParentPanel.Controls)
{
if (panel is DepositBizPanel)
{
ParentPanel.Controls.Remove(panel);
PanelDiagResult = DialogResult.Cancel;
break;
}
}
} private void btnprocessnext_Click(object sender, EventArgs e)
{
foreach (Control panel in ParentPanel.Controls)
{
if (panel is DepositBizPanel)
{
ParentPanel.Controls.Remove(panel);
PanelDiagResult = DialogResult.OK;
break;
}
}
}
}
人机操作界面例子
3)、控件播放gif动画
private void BeginAnimate()
{
if (m_AnimateImage == null)
return;
if (ImageAnimator.CanAnimate(m_AnimateImage))
{
//当gif动画每隔一定时间后，都会变换一帧，那么就会触发一事件，
//该方法就是将当前image每变换一帧时，都会调用当前这个委托所关联的方法。
ImageAnimator.Animate(m_AnimateImage, m_evthdlAnimator);
}
}
private void StopAnimate()
{
if (m_AnimateImage == null)
return;
try
{
if (ImageAnimator.CanAnimate(m_AnimateImage))
{
ImageAnimator.StopAnimate(m_AnimateImage, m_evthdlAnimator);
}
}
finally
{
m_IsExecuted = false;
}
}
private void UpdateImage()
{
if (m_AnimateImage == null)
return;
if (ImageAnimator.CanAnimate(m_AnimateImage))
{
//获得当前gif动画的下一步需要渲染的帧，当下一步任何对当前gif动画的操作都是对该帧进行操作)
ImageAnimator.UpdateFrames(m_AnimateImage);
}
}
private void OnImageAnimate(Object sender, EventArgs e)
{
Invalidate();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
string s1 = @"R0lGODlhIAAgALMAAP///7Ozs/v7+9bW1uHh4fLy8rq6uoGBgTQ0NAEBARsbG8TExJeXl/39/VRUVAAAACH/C05FVFNDQVBFMi4wAwEAAAAh+QQFBQAAACwAAAAAIAAgAAAE5xDISSlLrOrNp0pKNRCdFhxVolJLEJQUoSgOpSYT4RowNSsvyW1icA16k8MMMRkCBjskBTFDAZyuAEkqCfxIQ2hgQRFvAQEEIjNxVDW6XNE4YagRjuBCwe60smQUDnd4Rz1ZAQZnFAGDd0hihh12CEE9kjAEVlycXIg7BAsMB6SlnJ87paqbSKiKoqusnbMdmDC2tXQlkUhziYtyWTxIfy6BE8WJt5YEvpJivxNaGmLHT0VnOgGYf0dZXS7APdpB309RnHOG5gDqXGLDaC457D1zZ/V/nmOM82XiHQjYKhKP1oZmADdEAAAh+QQFBQAAACwAAAAAGAAXAAAEchDISasKNeuJFKoHs4mUYlJIkmjIV54Soypsa0wmLSnqoTEtBw52mG0AjhYpBxioEqRNy8V0qFzNw+GGwlJki4lBqx1IBgjMkRIghwjrzcDti2/Gh7D9qN774wQGAYOEfwCChIV/gYmDho+QkZKTR3p7EQAh+QQFBQAAACwBAAAAHQAOAAAEchDISWdANesNHHJZwE2DUSEo5SjKKB2HOKGYFLD1CB/DnEoIlkti2PlyuKGEATMBaAACSyGbEDYD4zN1YIEmh0SCQQgYehNmTNNaKsQJXmBuuEYPi9ECAU/UFnNzeUp9VBQEBoFOLmFxWHNoQw6RWEocEQAh+QQFBQAAACwHAAAAGQARAAAEaRDICdZZNOvNDsvfBhBDdpwZgohBgE3nQaki0AYEjEqOGmqDlkEnAzBUjhrA0CoBYhLVSkm4SaAAWkahCFAWTU0A4RxzFWJnzXFWJJWb9pTihRu5dvghl+/7NQmBggo/fYKHCX8AiAmEEQAh+QQFBQAAACwOAAAAEgAYAAAEZXCwAaq9ODAMDOUAI17McYDhWA3mCYpb1RooXBktmsbt944BU6zCQCBQiwPB4jAihiCK86irTB20qvWp7Xq/FYV4TNWNz4oqWoEIgL0HX/eQSLi69boCikTkE2VVDAp5d1p0CW4RACH5BAUFAAAALA4AAAASAB4AAASAkBgCqr3YBIMXvkEIMsxXhcFFpiZqBaTXisBClibgAnd+ijYGq2I4HAamwXBgNHJ8BEbzgPNNjz7LwpnFDLvgLGJMdnw/5DRCrHaE3xbKm6FQwOt1xDnpwCvcJgcJMgEIeCYOCQlrF4YmBIoJVV2CCXZvCooHbwGRcAiKcmFUJhEAIfkEBQUAAAAsDwABABEAHwAABHsQyAkGoRivELInnOFlBjeM1BCiFBdcbMUtKQdTN0CUJru5NJQrYMh5VIFTTKJcOj2HqJQRhEqvqGuU+uw6AwgEwxkOO55lxIihoDjKY8pBoThPxmpAYi+hKzoeewkTdHkZghMIdCOIhIuHfBMOjxiNLR4KCW1ODAlxSxEAIfkEBQUAAAAsCAAOABgAEgAABGwQyEkrCDgbYvvMoOF5ILaNaIoGKroch9hacD3MFMHUBzMHiBtgwJMBFolDB4GoGGBCACKRcAAUWAmzOWJQExysQsJgWj0KqvKalTiYPhp1LBFTtp10Is6mT5gdVFx1bRN8FTsVCAqDOB9+KhEAIfkEBQUAAAAsAgASAB0ADgAABHgQyEmrBePS4bQdQZBdR5IcHmWEgUFQgWKaKbWwwSIhc4LonsXhBSCsQoOSScGQDJiWwOHQnAxWBIYJNXEoFCiEWDI9jCzESey7GwMM5doEwW4jJoypQQ743u1WcTV0CgFzbhJ5XClfHYd/EwZnHoYVDgiOfHKQNREAIfkEBQUAAAAsAAAPABkAEQAABGeQqUQruDjrW3vaYCZ5X2ie6EkcKaooTAsi7ytnTq046BBsNcTvItz4AotMwKZBIC6H6CVAJaCcT0CUBTgaTg5nTCu9GKiDEMPJg5YBBOpwlnVzLwtqyKnZagZWahoMB2M3GgsHSRsRACH5BAUFAAAALAEACAARABgAAARcMKR0gL34npkUyyCAcAmyhBijkGi2UW02VHFt33iu7yiDIDaD4/erEYGDlu/nuBAOJ9Dvc2EcDgFAYIuaXS3bbOh6MIC5IAP5Eh5fk2exC4tpgwZyiyFgvhEMBBEAIfkEBQUAAAAsAAACAA4AHQAABHMQyAnYoViSlFDGXBJ808Ep5KRwV8qEg+pRCOeoioKMwJK0Ekcu54h9AoghKgXIMZgAApQZcCCu2Ax2O6NUud2pmJcyHA4L0uDM/ljYDCnGfGakJQE5YH0wUBYBAUYfBIFkHwaBgxkDgX5lgXpHAXcpBIsRADs=";
byte[] buffer = Convert.FromBase64String(s1);
MemoryStream ms = new MemoryStream(buffer);
var srcImg = Image.FromStream(ms);
m_AnimateImage = srcImg;
}
OnLoad执行的操作是从base64字符串里反序列化图片，就是效果图中的Loading的gif图片。这里遇到一个问题：在关闭了MemoryStream之后，会出现“gdi+ 中发生一般性错误”，于是改为不关闭了，控件销毁之后占用的内存就会释放吧。这是一点隐忧，如果有好的办法，希望留言告知。
透明按钮自定义控件全部代码
第一版自定义按钮：
/// <summary>
/// Cool透明自定义按钮
/// </summary>
public partial class CoolTransparentButton : UserControl
{
private Size iconSize = new Size(, );
public Size IconSize
{
get
{
return iconSize;
}
set
{
iconSize = value;
Invalidate();
}
}
private string _ButtonText;
public string ButtonText
{
get { return _ButtonText; }
set
{
_ButtonText = value;
Invalidate();
}
}
protected Image _IconImage;
public Image IconImage
{
get
{
return _IconImage;
}
set
{
_IconImage = value;
Invalidate();
}
}
private bool _FocseActived = false;
private Color _BorderColor = Color.White;
public Color BorderColor
{
get
{
return _BorderColor;
}
set
{
_BorderColor = value;
Invalidate();
}
}
private int _Radius = ;
public int Radius
{
get
{
return _Radius;
}
set
{
_Radius = value;
Invalidate();
}
}
private bool ifDrawBorderWhenLostFocse = true;
/// <summary>
/// 失去焦点是否画边框
/// </summary>
public bool IfDrawBorderWhenLostFocse
{
get
{
return ifDrawBorderWhenLostFocse;
}
set
{
ifDrawBorderWhenLostFocse = value;
Invalidate();
}
}
/// <summary>
/// 是否处于激活状态(焦点)
/// </summary>
public bool FocseActived
{
get { return _FocseActived; }
set
{
_FocseActived = value;
Invalidate();
}
}
public CoolTransparentButton()
{
DoubleBuffered = true;
BackColor = Color.Transparent;
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw, true);
SetStyle(ControlStyles.Opaque, false);
UpdateStyles();
}
protected override void OnPaint(PaintEventArgs e)
{
var rect = ClientRectangle;
rect.Inflate(-, -);
Graphics g = e.Graphics;
g.SmoothingMode = SmoothingMode.HighQuality;
using (GraphicsPath path = new GraphicsPath())
{
#region 羽化，圆角处理
path.StartFigure();
path.AddArc(new Rectangle(new Point(rect.X, rect.Y), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.X + Radius, rect.Y), new Point(rect.Right - Radius, rect.Y));
path.AddArc(new Rectangle(new Point(rect.Right - * Radius, rect.Y), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.Right, rect.Y + Radius), new Point(rect.Right, rect.Bottom - Radius));
path.AddArc(new Rectangle(new Point(rect.Right - * Radius, rect.Bottom - * Radius), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.Right - Radius, rect.Bottom), new Point(rect.X + Radius, rect.Bottom));
path.AddArc(new Rectangle(new Point(rect.X, rect.Bottom - * Radius), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.X, rect.Bottom - Radius), new Point(rect.X, rect.Y + Radius));
path.CloseFigure();
#endregion
if (!FocseActived)
{
if (ifDrawBorderWhenLostFocse)
g.DrawPath(new Pen(Color.Gray, ), path);
g.FillPath(new SolidBrush(Color.FromArgb(, BackColor)), path);
}
else
{
g.DrawPath(new Pen(BorderColor, ), path);
rect.Inflate(-, -);
g.FillPath(new SolidBrush(Color.FromArgb(, BackColor)), path);
}
#region 画文本
g.SmoothingMode = SmoothingMode.AntiAlias;
if (IconImage != null)
{
Rectangle rc = new Rectangle((Width - ) / , , IconSize.Width, IconSize.Height);
g.DrawImage(IconImage, rc);
}
if (!string.IsNullOrEmpty(ButtonText))
{
using (StringFormat f = new StringFormat())
{
Rectangle rectTxt = new Rectangle(, (Height - ) / , Width, );
f.Alignment = StringAlignment.Center;// 水平居中对齐
f.LineAlignment = StringAlignment.Center; // 垂直居中对齐
f.FormatFlags = StringFormatFlags.NoWrap;// 设置为单行文本
SolidBrush fb = new SolidBrush(this.ForeColor); // 绘制文本
e.Graphics.DrawString(ButtonText, new Font("微软雅黑", 16F, FontStyle.Bold), fb, rectTxt, f);
}
}
#endregion
}
}
protected override void OnMouseHover(EventArgs e)
{
FocseActived = true;
}
protected override void OnMouseLeave(EventArgs e)
{
FocseActived = false;
}
protected override void OnEnter(EventArgs e)
{
FocseActived = true;
}
protected override void OnLeave(EventArgs e)
{
FocseActived = false;
}
}
第二版自定义按钮：
/// <summary>
/// 自定义透明自定义按钮，模仿实现了网页元素的Ajax效果
/// </summary>
public partial class AjaxTransparentButton : UserControl
{
private Size iconSize = new Size(, );
public Size IconSize
{
get
{
return iconSize;
}
set
{
iconSize = value;
Invalidate();
}
}
private string _ButtonText;
public string ButtonText
{
get { return _ButtonText; }
set
{
_ButtonText = value;
Invalidate();
}
}
protected Image _IconImage;
public Image IconImage
{
get
{
return _IconImage;
}
set
{
_IconImage = value;
Invalidate();
}
}
private bool _FocseActived = false;
private Color _BorderColor = Color.White;
public Color BorderColor
{
get
{
return _BorderColor;
}
set
{
_BorderColor = value;
Invalidate();
}
}
private int _Radius = ;
public int Radius
{
get
{
return _Radius;
}
set
{
_Radius = value;
Invalidate();
}
}
private bool ifDrawBorderWhenLostFocse = true;
/// <summary>
/// 失去焦点是否画边框
/// </summary>
public bool IfDrawBorderWhenLostFocse
{
get
{
return ifDrawBorderWhenLostFocse;
}
set
{
ifDrawBorderWhenLostFocse = value;
Invalidate();
}
}
/// <summary>
/// 是否处于激活状态(焦点)
/// </summary>
public bool FocseActived
{
get { return _FocseActived; }
set
{
_FocseActived = value;
Invalidate();
}
}
private Image m_AnimateImage = null;
private EventHandler m_evthdlAnimator = null;
private bool m_IsExecuted = false;
public AjaxTransparentButton()
{
BackColor = Color.Transparent;
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw | ControlStyles.UserPaint, true);
SetStyle(ControlStyles.Opaque, false);
UpdateStyles();
m_evthdlAnimator = new EventHandler(OnImageAnimate);
}
protected override void OnPaint(PaintEventArgs e)
{
var rect = ClientRectangle;
rect.Inflate(-, -);
Graphics g = e.Graphics;
g.SmoothingMode = SmoothingMode.HighQuality;
using (GraphicsPath path = new GraphicsPath())
{
#region 羽化，圆角处理
path.StartFigure();
path.AddArc(new Rectangle(new Point(rect.X, rect.Y), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.X + Radius, rect.Y), new Point(rect.Right - Radius, rect.Y));
path.AddArc(new Rectangle(new Point(rect.Right - * Radius, rect.Y), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.Right, rect.Y + Radius), new Point(rect.Right, rect.Bottom - Radius));
path.AddArc(new Rectangle(new Point(rect.Right - * Radius, rect.Bottom - * Radius), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.Right - Radius, rect.Bottom), new Point(rect.X + Radius, rect.Bottom));
path.AddArc(new Rectangle(new Point(rect.X, rect.Bottom - * Radius), new Size( * Radius, * Radius)), , );
path.AddLine(new Point(rect.X, rect.Bottom - Radius), new Point(rect.X, rect.Y + Radius));
path.CloseFigure();
#endregion
if (!FocseActived)
{
if (ifDrawBorderWhenLostFocse)
g.DrawPath(new Pen(Color.Gray, ), path);
g.FillPath(new SolidBrush(Color.FromArgb(, BackColor)), path);
}
else
{
g.DrawPath(new Pen(BorderColor, ), path);
rect.Inflate(-, -);
g.FillPath(new SolidBrush(Color.FromArgb(, BackColor)), path);
}
#region 画文本
g.SmoothingMode = SmoothingMode.AntiAlias;
if (IconImage != null)
{
Rectangle rc = new Rectangle((Width - ) / , , IconSize.Width, IconSize.Height);
g.DrawImage(IconImage, rc);
}
if (!string.IsNullOrEmpty(ButtonText))
{
using (StringFormat f = new StringFormat())
{
Rectangle rectTxt = new Rectangle(, (Height - ) / , Width, );
f.Alignment = StringAlignment.Center;// 水平居中对齐
f.LineAlignment = StringAlignment.Center; // 垂直居中对齐
f.FormatFlags = StringFormatFlags.NoWrap;// 设置为单行文本
SolidBrush fb = new SolidBrush(this.ForeColor); // 绘制文本
e.Graphics.DrawString(ButtonText, new Font("微软雅黑", 16F, FontStyle.Bold), fb, rectTxt, f);
}
}
if (m_AnimateImage != null)
{
Rectangle rectGif = new Rectangle((Width - ) / , (Height - ) / - , , );
if (m_IsExecuted)
{
UpdateImage();
e.Graphics.DrawImage(m_AnimateImage, rectGif);
}
else
{
e.Graphics.FillRectangle(new SolidBrush(Color.Transparent), rectGif);
}
}
#endregion
}
}
protected override void OnMouseHover(EventArgs e)
{
FocseActived = true;
}
protected override void OnMouseLeave(EventArgs e)
{
FocseActived = false;
}
protected override void OnEnter(EventArgs e)
{
FocseActived = true;
}
protected override void OnLeave(EventArgs e)
{
FocseActived = false;
}
private void BeginAnimate()
{
if (m_AnimateImage == null)
return;
if (ImageAnimator.CanAnimate(m_AnimateImage))
{
//当gif动画每隔一定时间后，都会变换一帧，那么就会触发一事件，
//该方法就是将当前image每变换一帧时，都会调用当前这个委托所关联的方法。
ImageAnimator.Animate(m_AnimateImage, m_evthdlAnimator);
}
}
private void StopAnimate()
{
if (m_AnimateImage == null)
return;
try
{
if (ImageAnimator.CanAnimate(m_AnimateImage))
{
ImageAnimator.StopAnimate(m_AnimateImage, m_evthdlAnimator);
}
}
finally
{
m_IsExecuted = false;
}
}
private void UpdateImage()
{
if (m_AnimateImage == null)
return;
if (ImageAnimator.CanAnimate(m_AnimateImage))
{
//获得当前gif动画的下一步需要渲染的帧，当下一步任何对当前gif动画的操作都是对该帧进行操作)
ImageAnimator.UpdateFrames(m_AnimateImage);
}
}
private void OnImageAnimate(Object sender, EventArgs e)
{
Invalidate();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
string s1 = @"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";
byte[] buffer = Convert.FromBase64String(s1);
MemoryStream ms = new MemoryStream(buffer);
var srcImg = Image.FromStream(ms);
m_AnimateImage = srcImg;
}
protected override void OnClick(EventArgs e)
{
if (m_IsExecuted)
return;
Action clickTask = () =>
{
m_IsExecuted = true;
BeginAnimate();
base.OnClick(e);
Invalidate();
};
//异步执行单击事件
clickTask.BeginInvoke((result) =>
{
clickTask.EndInvoke(result);
m_IsExecuted = false;
StopAnimate();
}, null);
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (m_AnimateImage != null)
{
try
{
StopAnimate();
}
finally
{
m_AnimateImage.Dispose();
m_evthdlAnimator = null;
}
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (e.KeyCode == Keys.Enter)
{
OnClick(e);
}
}
}
注释不是很多，源码如有需要拿走不谢.近来访问本博的外国友人多起来了，所以在Code Project上发布了E文版的本篇博客，目前短短两个月包含我大中华帝国在内已经有29个国家地区访问本博客，这是写作的动力。
C# Winform 实现Ajax效果自定义按钮的更多相关文章
- C#自定义按钮、自定义WinForm无边框窗体、自定义MessageBox窗体
C#自定义按钮.自定义WinForm无边框窗体.自定义MessageBox窗体 C#自定义Button按钮控件 效果展示 C#自定义Winform无边框窗体 效果展示 C#自定义无边框MessageB ...
- iOS开发——UI进阶篇（十八）核心动画小例子，转盘（裁剪图片、自定义按钮、旋转）图片折叠、音量震动条、倒影、粒子效果
一.转盘(裁剪图片.自定义按钮.旋转) 1.裁剪图片 将一张大图片裁剪为多张 // CGImageCreateWithImageInRect:用来裁剪图片 // image:需要裁剪的图片 // re ...
- Yii框架zii.widgets.grid自定义按钮，ajax触发事件并提示
相关类手册: http://www.yiichina.com/api/CButtonColumn buttons 属性 public array $buttons; the configurati ...
- php+ajax实现登录按钮加载loading效果
php+ajax实现登录按钮加载loading效果,一个提高用户体验,二个避免重复提交表单,ajax判断加载是否完成. 登录表单 <form onsubmit="return chec ...
- Qt实现自定义按钮的三态效果
好久之前做的一个小软件,好长时间没动过了,在不记录下有些细节可能都忘了,这里整理下部分功能的实现. 按钮的三态,指的是普通态.鼠标的停留态.点击态,三态是界面交互非常基本的一项功能,Qt中如果使用的是 ...
- django xadmin 插件(3) 列表视图新增自定义按钮
效果图: 编辑按钮是默认的list_editable属性对应的插件(xadmin.plugins.editable) 放大按钮对应的是自定义插件. 自定义按钮源码: xplugin.py(保证能够直接 ...
- dataTable之自定义按钮实现全表 复制 打印 导出 重载
//本文对常用表格插件datatable 的自定义按钮功能键进行详细解释//其中 15-78行是定义表单//16 18 19 三行定义自定义功能按钮 实现对全表的 复制 打印 导出(csv即excel ...
- （三）c#Winform自定义控件-有图标的按钮
前提 入行已经7,8年了,一直想做一套漂亮点的自定义控件,于是就有了本系列文章. 开源地址:https://gitee.com/kwwwvagaa/net_winform_custom_control ...
- WPF自定义控件与样式(2)-自定义按钮FButton
一．前言.效果图 申明:WPF自定义控件与样式是一个系列文章,前后是有些关联的,但大多是按照由简到繁的顺序逐步发布的等,若有不明白的地方可以参考本系列前面的文章,文末附有部分文章链接. 还是先看看效果 ...
随机推荐
- linux下使用crontab实现定时PHP计划任务失败的原因分析
这篇文章主要介绍了linux下使用crontab实现定时PHP计划任务失败的原因分析,需要的朋友可以参考下 很多人在linux下使用crontab实现PHP执行定时任务却未能成功,不能生成缓存.本 ...
- Python-week1，第一周（基于Python3.0以上）
1,变量 准确来说不是第一周学习了吧,应该是采用博客记录学习的第一周,记录并做个笔记吧,可能做的不好,但我高兴啊,废话不说了,上图. 学习过程中做的一些笔记,当然能面面俱到,只能在写博客的时候又能复习 ...
- 远程连接SQL Server 2014遇到的问题和解决
在本机可以通过IP地址的数据库引擎登录数据库,可用同网段的其它电脑远程登录一直不成功.查看网上资料,认为是主机防火墙的问题. 在微软网站上查找相关的文档找到了答案.http://msdn.micros ...
- css响应式布局
以设计稿为准,假设设计稿竖屏宽度为750px,取根元素的font-size为50px 在iphone6(375px)下,deviceWidth=7.5rem, 这个就是viewPort中的device ...
- geolocation h5
navigator. geolocation.getCurrentPosition() 触发浏览器弹窗询问用户同意访问地址.接收三个参数:成功回调函数,可选的失败回调,可选选项对象 成功回调函数接 ...
- .NET项目从CI到CD-Jenkins_Pipeline的应用
一.罗里吧嗦 最近迁移了服务器,顺道完善下服役了一两年的Jenkins服务,主要是把Slave搭建起来,还有等等.本文只是我对Jenkins Pipeline的一些自己的理解与应用,欢迎指出错误,欢迎 ...
- 万能日志数据收集器 Fluentd - 每天5分钟玩转 Docker 容器技术（91）
前面的 ELK 中我们是用 Filebeat 收集 Docker 容器的日志,利用的是 Docker 默认的 logging driver json-file,本节我们将使用 fluentd 来收集容 ...
- PHP小技巧
1.js获取服务器年月日 var date= '<?php echo date("Y-m-d",time())?>';//获取服务器年月
- Linux 文件系统模型
声明:本文仅限于 cnblogs 发布,其他第三方网站均为盗版,原文地址:Linux 文件系统模型 在 Linux 环境下有过一些经历的同学可能都会遇到一个问题,这个问题就是往机器上插入 U盘 或者其 ...
- php 常用 常量集合
DIRECTORY_SEPARATOR 常量 DIRECTORY_SEPARATOR 目录分割符