Recent changes to bugs

YAxis.Scale.MinGrace not working when minimum value is 0.

Andrey Sidorenko — Sat, 19 Mar 2016 21:55:49 -0000

It seems that Scale.Min is calculated with wrong formula where min_value is multiplied by some coefficient depending on MinGrace, and when it is min_value 0, Scale.Min remains 0 too.

#88 Export to emf keeps the file open

Mirko Donatzer — Mon, 02 Nov 2015 10:08:08 -0000

Hi Ithink following code should solve described problem. The file handle of returned by CopyEnhMetaFile(hEMF, tempName) was not "deleted" (freed)

static internal bool SaveEnhMetafileToFile(Metafile mf, string fileName)
{
bool bResult = false;
IntPtr hEMF = mf.GetHenhmetafile(); // invalidates mf
IntPtr hEMFCopy = IntPtr.Zero;
if (!hEMF.Equals(new IntPtr(0)))
{
StringBuilder tempName = new StringBuilder(fileName);
hEMFCopy = CopyEnhMetaFile(hEMF, tempName);
DeleteEnhMetaFile(hEMFCopy);
DeleteEnhMetaFile(hEMF);
bResult = true;
}
return bResult;
}

Elements of classes are hided

Gustavo Furtado — Mon, 13 Jul 2015 19:25:35 -0000

Hi
I´m new on ZedGraph. It´s a wonderfull tool, but I´m in a strange situation: some elements of classes don´t appear on Intellisense (VS2010, C#) and even causes compilation error. For example: ZedGraphControl doesn´t has PointValueEvent event (it doesn´t appear as an option element in popup).
Am I forgetinng something? I´m using V5.1.5.
Sorry if it´s not the right place for this doubt.

#127 Legend is not showing

Johnny — Sun, 12 Jul 2015 20:52:00 -0000

Sorry: forgot to specifiy that each curve must have a label:
myCurve.Label.Text = CurveLabel
myCurve.Label.IsVisible = True

Legend is not showing

Johnny — Sun, 12 Jul 2015 20:39:49 -0000

Legend is not showing even if I have:
myPane.Legend.IsVisible = True
myPane.Legend.Position = LegendPos.InsideBotRight
how can I solve this? I cannot find any other answers over the internet; it seems the legend will always show to all other people.

I'm using 5.15 with vb.net and vs.2008.

Thanks

BoxObj on log y axis

John — Tue, 10 Feb 2015 10:05:36 -0000

BoxObj height is not drawn correctly on y axis using log scale.
BoxObj.Location.Y2 value is _y+_height; should be _y-_height;
Workaround:
Set the BoxObj.Location.Height = -BoxObj.Location.Height when log y axis is used.

win8系统下鼠标拖拽选择区域时虚线框闪烁

杰利诚 — Fri, 27 Jun 2014 02:40:30 -0000

用鼠标左键拖拽选择区域放大时，软件会绘制虚线框用以指示区域位置和大小。
但是如果该操作在Win8系统上进行时，就会发现虚线框会不停地闪烁。
我觉得这是个绘制效率的问题，于是我使用系统接口方法来绘制，如此一来，效果好多了。
附件中的文件是我本地修改后的代码，附带将Win8下鼠标提示框闪烁的问题也解决了。

#124 PointValueEvent Fires multiple times

杰利诚 — Fri, 27 Jun 2014 02:29:34 -0000

hello
you can fixed it by "Update point tool tips only if they changed." patch,which number is 96.
hope useful

#124 PointValueEvent Fires multiple times

Wuerr Marcus — Sat, 15 Mar 2014 12:55:11 -0000

Reproduced also with .net target framework: 4.5.1

PointValueEvent Fires multiple times

Wuerr Marcus — Sat, 15 Mar 2014 12:17:38 -0000

PointValueEvent (of ZedGraph.ZedGraphControl) is raised multiple times.

When I move my mouse cursor over a value point in the graph the PointValueEvent is raised multiple times.
The exact # seems to be random (3-10).
More importantly if I actually return a tooltip string in the event handler the event is raised repeatedly.
Only by returning an empty string could I prevent the event from being raised indefinitely.

When used as intended (returning a tooltip string) the result is that the tool tip flickers (as the value is updated with each event).

Windows: 7,
zedGraph: 5.1.5.28844,
IDE: SharpDevelop
.net target framework: 2.0