Changeset 17646 for trunk/HeuristicLab.Problems.Instances.DataAnalysis.Views/3.3/RegressionInstanceProviderView.cs

Timestamp:

07/03/20 16:59:16 (4 years ago)

Author:

gkronber

Message:

#3078 added synchronization in RegressionInstanceProviderView which solves the crashes on my machine.

File:

• trunk/HeuristicLab.Problems.Instances.DataAnalysis.Views/3.3/RegressionInstanceProviderView.cs (modified) (2 diffs)

trunk/HeuristicLab.Problems.Instances.DataAnalysis.Views/3.3/RegressionInstanceProviderView.cs

@@ -49 +49 @@
           var content = activeView.Content;
           // lock active view and show progress bar
+          IProgress progress = null;
           try {
-            var progress = Progress.Show(content, "Loading problem instance.");
+            progress = Progress.Show(content, "Loading problem instance.");
 
-            Content.ProgressChanged += (o, args) => { progress.ProgressValue = args.ProgressPercentage / 100.0; };
+            Content.ProgressChanged += (o, args) => {
+              lock (progress) {
+                if (progress.ProgressState == ProgressState.Started)
+                  progress.ProgressValue = args.ProgressPercentage / 100.0;
+              }
+            };
 
             instance = Content.ImportData(importTypeDialog.Path, importTypeDialog.ImportType, importTypeDialog.CSVFormat);
@@ -59 +65 @@
             return;
           } finally {
-            Progress.Hide(content);
+            lock (progress) {
+              Progress.Hide(content);
+            }
           }