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POOnPropertyChanged reaction different the first time and the second time
 

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  1. POOnPropertyChanged reaction different the first time and the second time
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    <p>I have got a collection of viewModels(InputViewModel) in an other viewModel(ScenarioManager). each InputviewModel has an instance of a Class(RestOfInput) which contains properties able to raise the OnPropertyChanged. when one of these properties changes the event is handled by this method (in InputViewModel) :</p> <pre><code> public void TestAfterChanges(object sender, PropertyChangedEventArgs e) { MessageBox.Show("not ref"); bool isInTheList = false; RestOfInput roi = sender as RestOfInput; string prop = e.PropertyName; if (prop!="NameFile") { Difference d = new Difference(); d.Length = prop; d.Value1 = reference.RoI.getValueByPropertyName(prop); d.Value2 = roi.getValueByPropertyName(prop); foreach (Difference diff in _ListOfDifferences) { if (diff.Length==prop) { if ( (Math.Abs(d.Value2-d.Value1)&gt;0.001*d.Value1)) { //replace by le new one _ListOfDifferences.Insert(_ListOfDifferences.IndexOf(diff), d); _ListOfDifferences.Remove(diff); } else { //if change make the field value equal to the ref then remove from difference list _ListOfDifferences.Remove(diff); } isInTheList = true; } } if ((Math.Abs(d.Value2 - d.Value1) &gt; 0.001 * d.Value1) &amp;&amp; isInTheList==false) { _ListOfDifferences.Add(d); } } } </code></pre> <p>this method gives just a summary of the differences between this particular case and the reference case.</p> <p>Now if the reference case changes I have to update all the cases and the event is handled in ScenarioManager :</p> <pre><code> public void refCaseChanging(object sender, PropertyChangedEventArgs e) { MessageBox.Show("ref"); string propname = e.PropertyName; foreach (InputViewModel item in _casesList) { if (item!=inpVM) { item.RoI.OnPropertyChanged(propname); } } } </code></pre> <p>inpVM is the reference case. </p> <p>Then I have this behavior : -if I change a field in a case which is not the reference case : everything is ok. -if I change a particular field in the reference case : the first time, everything is ok. But the second time, only the reference case and the first case (in the collection) which is not the reference case are updated> It is like the foreach loop is broken..</p> <p>Any explications.</p> <p>If the message is not clear please tell me ( not easy to explain ;) )</p>
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