C# zedGraph如何画自定义的横线和纵线

在C#中使用zedGraph库画自定义的横线和纵线可以通过以下步骤实现：

1. 定义一个LineItem对象

LineItem myCurve = myPane.AddCurve("My Line", new PointPairList(), Color.Red, SymbolType.None);

2. 添加横线或纵线的数据点

myCurve.Points.Add(new PointPair(x1, y1));
myCurve.Points.Add(new PointPair(x2, y2));

3. 设置线条样式

myCurve.Line.Style = System.Drawing.Drawing2D.DashStyle.Solid;  //设置为实线
myCurve.Line.Width = 2;  //设置线宽

完整示例代码：

//创建一个GraphPane对象
GraphPane myPane = zedGraphControl1.GraphPane;

//定义一个LineItem对象
LineItem myCurve = myPane.AddCurve("My Line", new PointPairList(), Color.Red, SymbolType.None);

//添加横线或纵线的数据点
double x1 = 10;
double x2 = 50;
double y = 20;
myCurve.Points.Add(new PointPair(x1, y));
myCurve.Points.Add(new PointPair(x2, y));

//设置线条样式
myCurve.Line.Style = System.Drawing.Drawing2D.DashStyle.Solid;
myCurve.Line.Width = 2;