From 70f9ce0d586dd7239b5c670a3ed0142b97210998 Mon Sep 17 00:00:00 2001
From: Claudio Schaad <c.schaad@pog.ch>
Date: Sat, 4 Jul 2026 08:32:34 +0200
Subject: [PATCH] PR U-2: guard TransactionDialog.SaveAsync against a cleared
 date

Guard SaveAsync against a null SelectedValue (previously
SelectedValue!.Value threw InvalidOperationException) and disable
the Save button while the date is empty so the user gets a visible
cue.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 .../Components/Pages/Dialogs/TransactionDialog.razor      | 1 +
 .../Components/Pages/Dialogs/TransactionDialog.razor.cs   | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor b/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor
index 427959a..801950b 100644
--- a/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor
+++ b/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor
@@ -56,6 +56,7 @@
         Abbrechen
     </FluentButton>
     <FluentButton Appearance="Appearance.Accent"
+                  Disabled="@(SelectedValue is null)"
                   OnClick="@SaveAsync">
         Speichern
     </FluentButton>
diff --git a/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor.cs b/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor.cs
index 2bdc942..9268a26 100644
--- a/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor.cs
+++ b/Schaad.Accounting.UI/Components/Pages/Dialogs/TransactionDialog.razor.cs
@@ -34,10 +34,14 @@ public partial class TransactionDialog : ComponentBase
 
     private async Task SaveAsync()
     {
+        if (editContext is null || SelectedValue is null)
+        {
+            return;
+        }
         if (editContext.Validate())
         {
-            Content.ValueDate = SelectedValue!.Value;
-            Content.BookingDate = SelectedValue!.Value;
+            Content.ValueDate = SelectedValue.Value;
+            Content.BookingDate = SelectedValue.Value;
             await transactionRepository.SaveTransactionAsync(Content);
             await Dialog.CloseAsync(Content);
         }