From 26981534917a271b4351f653adc96d6e10255f34 Mon Sep 17 00:00:00 2001
From: Ellpeck <megamaximal@gmail.com>
Date: Sat, 24 Aug 2019 12:56:58 +0200
Subject: [PATCH] fixed elementhelper crash

---
 MLEM.Ui/Elements/ElementHelper.cs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/MLEM.Ui/Elements/ElementHelper.cs b/MLEM.Ui/Elements/ElementHelper.cs
index 20cbf42..d2d8e83 100644
--- a/MLEM.Ui/Elements/ElementHelper.cs
+++ b/MLEM.Ui/Elements/ElementHelper.cs
@@ -17,7 +17,8 @@ namespace MLEM.Ui.Elements {
                 OnClicked = (element, button) => {
                     if (button == MouseButton.Left) {
                         var text = field.Text.ToString();
-                        field.SetText(int.Parse(text) + stepPerClick);
+                        if (int.TryParse(text, out var val))
+                            field.SetText(val + stepPerClick);
                     }
                 }
             };
@@ -28,7 +29,8 @@ namespace MLEM.Ui.Elements {
                 OnClicked = (element, button) => {
                     if (button == MouseButton.Left) {
                         var text = field.Text.ToString();
-                        field.SetText(int.Parse(text) - stepPerClick);
+                        if (int.TryParse(text, out var val))
+                            field.SetText(val - stepPerClick);
                     }
                 }
             };