Added event when a text element gets selected

I18N Commander/Processor/TextElementProcessor.cs

@@ -7,12 +7,21 @@ namespace Processor;
 
 public static class TextElementProcessor
 {
+    // Load all text elements for one particular section:
     public static async Task<List<TextElement>> GetTextElements(Section section)
     {
         await using var db = ProcessorMeta.ServiceProvider.GetRequiredService<DataContext>();
         return await db.TextElements.Where(n => n.Section == section).OrderBy(n => n.Name).ThenBy(n => n.Id).ToListAsync();
     }
     
+    // Load one text element by id:
+    public static async Task<TextElement> LoadTextElement(int id)
+    {
+        await using var db = ProcessorMeta.ServiceProvider.GetRequiredService<DataContext>();
+        return await db.TextElements.FirstAsync(n => n.Id == id);
+    }
+
+    // Adds a new text element:
     public static async Task<ProcessorResult<TextElement>> AddTextElement(string? currentSectionKey, string elementName)
     {
         await using var db = ProcessorMeta.ServiceProvider.GetRequiredService<DataContext>();

I18N Commander/UI WinForms/AppEvents.cs

@@ -4,7 +4,15 @@ namespace UI_WinForms;
 
 internal static class AppEvents
 {
+    // Section changed event which can be subscribed:
     internal static event EventHandler<Section> WhenSectionChanged;
     
+    // Method to raise the section changed event:
     internal static void SectionChanged(Section section) => AppEvents.WhenSectionChanged?.Invoke(null, section);
+    
+    // Text element changed event which can be subscribed:
+    internal static event EventHandler<TextElement> WhenTextElementChanged;
+    
+    // Method to raise the text element changed event:
+    internal static void TextElementChanged(TextElement textElement) => AppEvents.WhenTextElementChanged?.Invoke(null, textElement);
 }

I18N Commander/UI WinForms/Components/TextElements.Designer.cs

@@ -169,6 +169,7 @@
             this.listTextElements.TabIndex = 5;
             this.listTextElements.UseCompatibleStateImageBehavior = false;
             this.listTextElements.View = System.Windows.Forms.View.Details;
+            this.listTextElements.ItemSelectionChanged += new System.Windows.Forms.ListViewItemSelectionChangedEventHandler(this.listTextElements_ItemSelectionChanged);
             // 
             // column
             // 

I18N Commander/UI WinForms/Components/TextElements.cs

@@ -8,6 +8,7 @@ namespace UI_WinForms.Components;
 public partial class TextElements : UserControl
 {
     private Section? currentSection;
+    private TextElement? currentTextElement;
     
     public TextElements()
     {
@@ -30,15 +31,24 @@ public partial class TextElements : UserControl
         AppEvents.WhenSectionChanged += async (sender, section) =>
         {
             this.currentSection = section;
+            this.currentTextElement = null;
             this.buttonAdd.Enabled = this.currentSection is not null;
+            this.buttonRename.Enabled = this.buttonRemove.Enabled = false;
             
-            // Update the path:
             if (this.currentSection is null)
                 return;
             
+            // Update the path:
             this.labelSectionPath.Text = await SectionProcessor.GetSectionPath(this.currentSection.DataKey);
             this.LoadTextElements();
         };
+        
+        // When the text element is changed, update the button states:
+        AppEvents.WhenTextElementChanged += (sender, textElement) =>
+        {
+            this.currentTextElement = textElement;
+            this.buttonRename.Enabled = this.buttonRemove.Enabled = this.currentTextElement is not null;
+        };
     }
     
     // Loads all the text elements for the current section.
@@ -55,7 +65,7 @@ public partial class TextElements : UserControl
         foreach (var textElement in textElements)
             this.listTextElements.Items.Add(new ListViewItem(textElement.Name, 0)
             {
-                Tag = textElement.Code,
+                Tag = textElement.Id,
             });
         
         this.column.AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
@@ -86,7 +96,7 @@ public partial class TextElements : UserControl
         // Add the text element to the list:
         this.listTextElements.Items.Add(new ListViewItem(newTextElement.Result!.Name, 0)
         {
-            Tag = newTextElement.Result.Code,
+            Tag = newTextElement.Result.Id,
         });
         
         this.column.AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
@@ -101,4 +111,14 @@ public partial class TextElements : UserControl
     {
 
     }
+
+    private async void listTextElements_ItemSelectionChanged(object sender, ListViewItemSelectionChangedEventArgs e)
+    {
+        // Load the text element:
+        var selectedTextElementId = (int)e.Item.Tag;
+        this.currentTextElement = await TextElementProcessor.LoadTextElement(selectedTextElementId);
+        
+        // Fire the event:
+        AppEvents.TextElementChanged(this.currentTextElement);
+    }
 }