From a56d6477f2d278159e8ca40457ce00e441f8b87b Mon Sep 17 00:00:00 2001
From: qhy040404 <qhy040404@163.com>
Date: Mon, 8 May 2023 09:23:22 +0800
Subject: [PATCH] Fix crash

---
 src/ui/Generator_Form.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ui/Generator_Form.cs b/src/ui/Generator_Form.cs
index 072d502..9932b7a 100644
--- a/src/ui/Generator_Form.cs
+++ b/src/ui/Generator_Form.cs
@@ -16,6 +16,7 @@ public Generator_Form()
 
         private void area_comboBox_SelectedIndexChanged(object sender, EventArgs e)
         {
+            if (area_comboBox.SelectedIndex == -1) return;
             room_comboBox.Items.Clear();
             room_comboBox.Items.AddRange(Constants.libraries[area_comboBox.Text]);
         }