add nullable type support (#614)

mini-software · Jun 10, 2024 · 12bb1c0 · 12bb1c0
1 parent 0c878b1
commit 12bb1c0
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/src/MiniExcel/Utils/TypeHelper.cs b/src/MiniExcel/Utils/TypeHelper.cs
@@ -149,8 +149,15 @@ public static bool IsNumericType(Type type, bool isNullableUnderlyingType = fals
             }
             else
             {
-                // Use pInfo.ExcludeNullableType to resolve : https://github.com/shps951023/MiniExcel/issues/138
-                newValue = Convert.ChangeType(itemValue, pInfo.ExcludeNullableType, _config.Culture);
+                if (pInfo.Nullable && string.IsNullOrWhiteSpace(itemValue?.ToString()))
+                {
+                    newValue = null;
+                }
+                else
+                {
+                    // Use pInfo.ExcludeNullableType to resolve : https://github.com/shps951023/MiniExcel/issues/138
+                    newValue = Convert.ChangeType(itemValue, pInfo.ExcludeNullableType, _config.Culture);
+                }
             }
 
             pInfo.Property.SetValue(v, newValue);