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前提
成都创新互联主营合阳网站建设的网络公司,主营网站建设方案,app软件开发,合阳h5小程序制作搭建,合阳网站营销推广欢迎合阳等地区企业咨询入行已经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。
GitHub：https://github.com/kwwwvagaa/NetWinformControl
码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
NuGet
Install-Package HZH_Controls
目录
https://www.cnblogs.com/bfyx/p/11364884.html
用处及效果
准备工作
依然使用GDI+画的，不懂的话就百度一下吧
另外主要用到了三角函数，如果不懂，可以向初中的数学老师再问问（你也可以百度一下）
开始
添加一个类UCMeter 继承 UserControl
首先添加一个需要控制的属性
private int splitCount = 10;
///
/// Gets or sets the split count.
///
/// The split count.
[Description("分隔刻度数量，>1"), Category("自定义")]
public int SplitCount
{
get { return splitCount; }
set
{
if (value < 1)
return;
splitCount = value;
Refresh();
}
}
private int meterDegrees = 150;
///
/// Gets or sets the meter degrees.
///
/// The meter degrees.
[Description("表盘跨度角度，0-360"), Category("自定义")]
public int MeterDegrees
{
get { return meterDegrees; }
set
{
if (value > 360 || value <= 0)
return;
meterDegrees = value;
Refresh();
}
}
private decimal minValue = 0;
///
/// Gets or sets the minimum value.
///
/// The minimum value.
[Description("最小值,= maxValue)
return;
minValue = value;
Refresh();
}
}
private decimal maxValue = 100;
///
/// Gets or sets the maximum value.
///
/// The maximum value.
[Description("大值,>MinValue"), Category("自定义")]
public decimal MaxValue
{
get { return maxValue; }
set
{
if (value <= minValue)
return;
maxValue = value;
Refresh();
}
}
///
/// 获取或设置控件显示的文字的字体。
///
/// The font.
///
///
[Description("刻度字体"), Category("自定义")]
public override Font Font
{
get
{
return base.Font;
}
set
{
base.Font = value;
Refresh();
}
}
private decimal m_value = 0;
///
/// Gets or sets the value.
///
/// The value.
[Description("值，>=MinValue并且<=MaxValue"), Category("自定义")]
public decimal Value
{
get { return m_value; }
set
{
if (value < minValue || value > maxValue)
return;
m_value = value;
Refresh();
}
}
private MeterTextLocation textLocation = MeterTextLocation.None;
///
/// Gets or sets the text location.
///
/// The text location.
[Description("值和固定文字显示位置"), Category("自定义")]
public MeterTextLocation TextLocation
{
get { return textLocation; }
set
{
textLocation = value;
Refresh();
}
}
private string fixedText;
///
/// Gets or sets the fixed text.
///
/// The fixed text.
[Description("固定文字"), Category("自定义")]
public string FixedText
{
get { return fixedText; }
set
{
fixedText = value;
Refresh();
}
}
private Font textFont = DefaultFont;
///
/// Gets or sets the text font.
///
/// The text font.
[Description("值和固定文字字体"), Category("自定义")]
public Font TextFont
{
get { return textFont; }
set
{
textFont = value;
Refresh();
}
}
private Color externalRoundColor = Color.FromArgb(255, 77, 59);
///
/// Gets or sets the color of the external round.
///
/// The color of the external round.
[Description("外圆颜色"), Category("自定义")]
public Color ExternalRoundColor
{
get { return externalRoundColor; }
set
{
externalRoundColor = value;
Refresh();
}
}
private Color insideRoundColor = Color.FromArgb(255, 77, 59);
///
/// Gets or sets the color of the inside round.
///
/// The color of the inside round.
[Description("内圆颜色"), Category("自定义")]
public Color InsideRoundColor
{
get { return insideRoundColor; }
set
{
insideRoundColor = value;
Refresh();
}
}
private Color boundaryLineColor = Color.FromArgb(255, 77, 59);
///
/// Gets or sets the color of the boundary line.
///
/// The color of the boundary line.
[Description("边界线颜色"), Category("自定义")]
public Color BoundaryLineColor
{
get { return boundaryLineColor; }
set
{
boundaryLineColor = value;
Refresh();
}
}
private Color scaleColor = Color.FromArgb(255, 77, 59);
///
/// Gets or sets the color of the scale.
///
/// The color of the scale.
[Description("刻度颜色"), Category("自定义")]
public Color ScaleColor
{
get { return scaleColor; }
set
{
scaleColor = value;
Refresh();
}
}
private Color scaleValueColor = Color.FromArgb(255, 77, 59);
///
/// Gets or sets the color of the scale value.
///
/// The color of the scale value.
[Description("刻度值文字颜色"), Category("自定义")]
public Color ScaleValueColor
{
get { return scaleValueColor; }
set
{
scaleValueColor = value;
Refresh();
}
}
private Color pointerColor = Color.FromArgb(255, 77, 59);
///
/// Gets or sets the color of the pointer.
///
/// The color of the pointer.
[Description("指针颜色"), Category("自定义")]
public Color PointerColor
{
get { return pointerColor; }
set
{
pointerColor = value;
Refresh();
}
}
private Color textColor = Color.FromArgb(255, 77, 59);
///
/// Gets or sets the color of the text.
///
/// The color of the text.
[Description("值和固定文字颜色"), Category("自定义")]
public Color TextColor
{
get { return textColor; }
set
{
textColor = value;
Refresh();
}
}
Rectangle m_rectWorking; 另外有需要云服务器可以了解下创新互联scvps.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。