source: trunk/sources/HeuristicLab.Problems.Instances.DataAnalysis.Views/3.3/RegressionInstanceProviderView.cs @ 13414

Last change on this file since 13414 was 13414, checked in by gkronber, 5 years ago

#2071: added progress reporting when importing regression problem data from csv files.

File size: 2.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.IO;
24using System.Threading.Tasks;
25using System.Windows.Forms;
26using HeuristicLab.MainForm;
27using HeuristicLab.Problems.DataAnalysis;
28
29namespace HeuristicLab.Problems.Instances.DataAnalysis.Views {
30  [View("Regression InstanceProvider View")]
31  [Content(typeof(RegressionInstanceProvider), IsDefaultView = true)]
32  public partial class RegressionInstanceProviderView : DataAnalysisInstanceProviderView<IRegressionProblemData> {
33
34    public new RegressionInstanceProvider Content {
35      get { return (RegressionInstanceProvider)base.Content; }
36      set { base.Content = value; }
37    }
38
39    public RegressionInstanceProviderView() {
40      InitializeComponent();
41    }
42
43    protected override void importButton_Click(object sender, EventArgs e) {
44      var importTypeDialog = new RegressionImportTypeDialog();
45      if (importTypeDialog.ShowDialog() == DialogResult.OK) {
46        IRegressionProblemData instance = null;
47
48        Task.Factory.StartNew(() => {
49          var mainForm = (MainForm.WindowsForms.MainForm)MainFormManager.MainForm;
50          // lock active view and show progress bar
51          IContentView activeView = (IContentView)MainFormManager.MainForm.ActiveView;
52
53          try {
54            var progress = mainForm.AddOperationProgressToContent(activeView.Content, "Loading problem instance.");
55
56            Content.ProgressChanged += (o, args) => { progress.ProgressValue = args.ProgressPercentage / 100.0; };
57
58            instance = Content.ImportData(importTypeDialog.Path, importTypeDialog.ImportType, importTypeDialog.CSVFormat);
59          } catch (IOException ex) {
60            ErrorWhileParsing(ex);
61            mainForm.RemoveOperationProgressFromContent(activeView.Content);
62            return;
63          }
64          try {
65            GenericConsumer.Load(instance);
66            instancesComboBox.SelectedIndex = -1;
67          } catch (IOException ex) {
68            ErrorWhileLoading(ex, importTypeDialog.Path);
69          } finally {
70            mainForm.RemoveOperationProgressFromContent(activeView.Content);
71          }
72        });
73      }
74    }
75  }
76}
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