C# ZedGraph - 我正在寻找使用 DateTime 的示例
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ZedGraph - I am looking for an example of using a DateTime
提问by Brad
I am looking for an example of using a datetime field on a zedgraph linechart X-Axis.
我正在寻找在 zedgraph 折线图 X 轴上使用日期时间字段的示例。
Edit - And how do I set the XAxis max scale
编辑 - 我如何设置 XAxis 最大比例
myPane.XAxis.Type = AxisType.Date;
myPane.XAxis.Scale.Min = 0;
myPane.XAxis.Scale.Max = 12;
采纳答案by scottm
You will have to convert the DateTime variables to XDatestructs. You can create a method like this:
您必须将 DateTime 变量转换为XDate结构。您可以创建这样的方法：
public XDate ConvertDateToXdate(DateTime date)
{
return new XDate(date.ToOADate);
}
Here is an exampleof a chart using the XDate structs
回答by cmroanirgo
Having had the same problem recently, I discovered that the above answer isn't actually correct. The sample code simple casts an XDate() to a double.
最近遇到了同样的问题，我发现上面的答案实际上并不正确。示例代码 simple 将 XDate() 转换为 double。
However, the sample does highlight what you need to do. I still use DateTime.ToOADate(), but with the addition of the following code, I get to see times (in HH:MM:SS format):
但是，该示例确实突出了您需要执行的操作。我仍然使用 DateTime.ToOADate()，但是通过添加以下代码，我可以看到时间（以 HH:MM:SS 格式）：
pane.XAxis.Type = AxisType.Date;
pane.XAxis.Scale.MajorUnit = DateUnit.Hour;
pane.XAxis.Scale.Format = "T";
