Added dialog box to save changes before closing

Kjonge · Jul 23, 2016 · d31febb · d31febb
1 parent 6e20ae8
commit d31febb
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Showing 2 changed files with 37 additions and 8 deletions.
diff --git a/TabularTranslator/Translator.Designer.cs b/TabularTranslator/Translator.Designer.cs
diff --git a/TabularTranslator/Translator.cs b/TabularTranslator/Translator.cs
@@ -4,13 +4,15 @@
 using System.IO;
 using System.Linq;
 using System.Windows.Forms;
+using System.ComponentModel;
 
 namespace TabularTranslator
 {
     public partial class Translator : Form
     {
         private ModelTranslations _modelTranslations;
         private string _jsonFilename;
+        private bool _unsavedChanges = false;
         private class Culturelist
         {
             public string Table { get; set; }
@@ -172,6 +174,7 @@ private void SaveJsonCulturesFile(ModelTranslations translations, string filenam
                     serializer.Formatting = Formatting.Indented;
                     serializer.NullValueHandling = NullValueHandling.Ignore;
                     serializer.Serialize(file, translations);
+                    _unsavedChanges = false;
                 }
             }
             catch (Exception ex)
@@ -382,5 +385,29 @@ private void aboutToolStripMenuItem_Click(object sender, EventArgs e) {
             About about = new About();
             about.ShowDialog();
         }
+
+        private void dgvTranslations_CellValueChanged(object sender, DataGridViewCellEventArgs e) {
+            _unsavedChanges = true;
+        }
+
+        private void dgvTranslations_CurrentCellDirtyStateChanged(object sender, EventArgs e) {
+            _unsavedChanges = true;
+        }
+        protected override void OnClosing(CancelEventArgs e) {
+            if (_unsavedChanges) {
+                var confirm = MessageBox.Show("There are unsaved changes. Do you want to save them?", "Unsaved changes", MessageBoxButtons.YesNoCancel);
+                switch (confirm) {
+                    case DialogResult.Yes:
+                        SaveJsonCulturesFile(_modelTranslations, _jsonFilename);
+                        break;
+                    case DialogResult.No:
+                        break;
+                    case DialogResult.Cancel:
+                        e.Cancel = true;
+                        break;
+                }
+            }
+            base.OnClosing(e);
+        }
     }
 }