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source: trunk/sources/HeuristicLab.Data.Views/3.3/StringConvertibleValueView.cs @ 4184

Last change on this file since 4184 was 3904, checked in by mkommend, 14 years ago

Added SetEnabledStateOfControls as protected virtual method in !View. Therefore the overloading of OnReadOnlyChanged and OnLockedChanged got obsolete in most views, because the method got called in the !View respectively ContentView. (ticket #1021)

File size: 3.7 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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.ComponentModel;
24using System.Windows.Forms;
25using HeuristicLab.MainForm;
26using HeuristicLab.MainForm.WindowsForms;
27
28namespace HeuristicLab.Data.Views {
29  [View("StringConvertibleValue View")]
30  [Content(typeof(IStringConvertibleValue), true)]
31  public partial class StringConvertibleValueView : AsynchronousContentView {
32    public new IStringConvertibleValue Content {
33      get { return (IStringConvertibleValue)base.Content; }
34      set { base.Content = value; }
35    }
36
37    public override bool ReadOnly {
38      get {
39        if ((Content != null) && Content.ReadOnly) return true;
40        return base.ReadOnly;
41      }
42      set { base.ReadOnly = value; }
43    }
44
45    public StringConvertibleValueView() {
46      InitializeComponent();
47      errorProvider.SetIconAlignment(valueTextBox, ErrorIconAlignment.MiddleLeft);
48      errorProvider.SetIconPadding(valueTextBox, 2);
49    }
50
51    protected override void DeregisterContentEvents() {
52      Content.ValueChanged -= new EventHandler(Content_ValueChanged);
53      base.DeregisterContentEvents();
54    }
55
56    protected override void RegisterContentEvents() {
57      base.RegisterContentEvents();
58      Content.ValueChanged += new EventHandler(Content_ValueChanged);
59    }
60
61    protected override void OnContentChanged() {
62      base.OnContentChanged();
63      if (Content == null) {
64        valueTextBox.Text = string.Empty;
65      } else
66        valueTextBox.Text = Content.GetValue();
67    }
68
69    protected override void SetEnabledStateOfControls() {
70      base.SetEnabledStateOfControls();
71      valueTextBox.Enabled = Content != null;
72      valueTextBox.ReadOnly = ReadOnly;
73    }
74
75    private void Content_ValueChanged(object sender, EventArgs e) {
76      if (InvokeRequired)
77        Invoke(new EventHandler(Content_ValueChanged), sender, e);
78      else
79        valueTextBox.Text = Content.GetValue();
80    }
81
82    private void valueTextBox_KeyDown(object sender, KeyEventArgs e) {
83      if ((e.KeyCode == Keys.Enter) || (e.KeyCode == Keys.Return))
84        valueLabel.Focus();  // set focus on label to validate data
85      if (e.KeyCode == Keys.Escape) {
86        valueTextBox.Text = Content.GetValue();
87        valueLabel.Focus();  // set focus on label to validate data
88      }
89    }
90    private void valueTextBox_Validating(object sender, CancelEventArgs e) {
91      string errorMessage;
92      if (!Content.Validate(valueTextBox.Text, out errorMessage)) {
93        e.Cancel = true;
94        errorProvider.SetError(valueTextBox, errorMessage);
95        valueTextBox.SelectAll();
96      }
97    }
98    private void valueTextBox_Validated(object sender, EventArgs e) {
99      if (!Content.ReadOnly) Content.SetValue(valueTextBox.Text);
100      errorProvider.SetError(valueTextBox, string.Empty);
101      valueTextBox.Text = Content.GetValue();
102    }
103  }
104}
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