为什么我一直在“收集被修改;枚举操作可能不会执行“在VB.Net中绘制图表 [英] Why do I keep having "Collection was modified; enumeration operation may not execute" in charting in VB.Net
问题描述
我在我的图表中添加了随机点。
(Imports System.Windows.Forms.DataVisualization.Charting)
保存在文本文件中。
随着数据累积,我遇到这个错误:
异常:抓到:收集被修改;枚举操作可能无法执行。 (System.InvalidOperationException)
捕获到System.InvalidOperationException:| Collection已被修改;枚举操作可能无法执行|
时间:10/21/2015 10:36:07 AM
线程:无名称[1456]
我在每个代码中添加了Try Catch但它没有显示任何错误,图表中有红叉。会发生什么?
I was adding random points in my chart.
(Imports System.Windows.Forms.DataVisualization.Charting)
while saving in textfile.
And as data accumulated, I encounter this error:
Exception:Caught: Collection was modified; enumeration operation may not execute. (System.InvalidOperationException)
A System.InvalidOperationException was caught: |Collection was modified; enumeration operation may not execute|
Time: 10/21/2015 10:36:07 AM
Thread:No Name[1456]
I added Try Catch in every code but It does not show any error and graph has red cross in it. What happen?
推荐答案
>会发生什么?
您试图在枚举(迭代)过程中修改集合。这是不允许的。
/ ravi
> What happen?
You attempted to modify a collection while enumerating (iterating) through it. That's not permitted.
/ravi
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