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POtype casting error in C#
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Id
18906103
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AcceptedAnswerId
18906152
AnswerCount
1
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0
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CreationDate
2013-09-19T22:41:04.043
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0
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2013-09-19T22:46:14.120
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2070716
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1
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<p>I am attempting to have a write a class that simulates different frequency signals. I would like for the class to take the type of object that I am testing as a parameter, in order to test methods within that calling class. I am getting an error when I try to type cast myObject as myType. Obviously I am doing this incorrectly. I have omitted much of the superfluous code in this class, as to focus on the context of my question.</p> <pre><code> public MaxFinderTestChannel(TestSignals signal, Object ob) { myType = ob.GetType(); myObject = ob as myType; switch (signal) { case TestSignals.Linear: { constant = 1; for (double dd = 0.0; dd <= 5 * Math.PI; dd += .001) { x = dd; values.Add(x); y = x + constant; values.Add(y); } } break; case TestSignals.NegativeSine: { constant = -1; for (double dd = 0.0; dd <= 5 * Math.PI; dd += .001) { x = dd; values.Add(x); y = Math.Sin(25 * x) + constant; values.Add(y); } } break; case TestSignals.Parabola: { constant = 2; for (double dd = (-Math.PI); dd <= Math.PI; dd += .1) { x = dd; values.Add(x); y = Math.Pow(x, 2) + constant; values.Add(y); } } break; case TestSignals.Sine: { constant = 1; for (double dd = 0.0; dd <= 5 * Math.PI; dd += .001) { x = dd; values.Add(x); y = Math.Sin(25 * x) + constant; values.Add(y); } } break; default: throw new Exception("Invalid signal type:" + this.Name.ToString()); } pulseTrain = values.ToArray(); } public virtual bool EnumDataPoints(bool eventsOnly, double startTime, double duration, Collection<ISampleProcessor> sampleProcessors) { for (double time = timestamp; !breakloop && time < endtime; time += .001) { time = Math.Round(time, 4); if (time == timestamp) { if (myObject.Compute(time, ref value) == false) { breakloop = true; } timestamp = Math.Round(pulseTrain[index], 4); if (index < pulseTrain.Length - 1) { index++; } value = Math.Round(pulseTrain[index], 4); if (index < pulseTrain.Length - 1) { index++; } } } return !breakloop; } </code></pre> <p>The problem is that I get a compile error when I attempt to loop through my timestamps. The Compute() method is enforced by a specific interface, and several different concrete classes use this method.</p>
Tags
<c#-4.0><types><casting>
Title
type casting error in C#
singulars
PostAcceptedAnswerId
1. PO
  singulars
  PostTypePostTypeId
  PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USdavid_jr
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
  singulars
  PostTypePostTypeId
  PTAnswer
VotesPostIdCreationDate
1. VO
  singulars
  PostPostId
  POtype casting error in C#
  UserUserId
  This table or related slice is empty.
  VoteTypeVoteTypeId
  VTUpMod
CommentsPostId
1. This table or related slice is empty.

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