Make install-size optional, part 2

Author: WumboSpasm

FlashpointInstaller/src/Common.cs

@@ -62,13 +62,10 @@ public Component(XmlNode node) : base(node)
 
                 // Size
 
-                long size;
+                long size = 0;
+                string stringSize = GetAttribute(node, "install-size", false);
 
-                if (long.TryParse(GetAttribute(node, "install-size", true), out size))
-                {
-                    Size = size;
-                }
-                else
+                if (stringSize != "" && !long.TryParse(stringSize, out size))
                 {
                     MessageBox.Show(
                         "An error occurred while parsing the component list XML. Please alert Flashpoint staff ASAP!\n\n" +
@@ -79,6 +76,8 @@ public Component(XmlNode node) : base(node)
                     Environment.Exit(1);
                 }
 
+                Size = size;
+
                 // Path
 
                 Path = GetAttribute(node, "path", false);