From f572df377eb7f5d2d4fc01b8a71deab72cf7f41f Mon Sep 17 00:00:00 2001
From: Michele Bastione <michele.bastione@gmail.com>
Date: Thu, 15 May 2025 22:52:44 +0200
Subject: [PATCH] Solves issue 459 and removes redundant api methods

---
 samples/xlsx/TestIssue459.xlsx                | Bin 0 -> 10454 bytes
 src/MiniExcel/MiniExcel.cs                    |  13 +-----
 .../ExcelOpenXmlTemplate.Impl.cs              |  43 ++++++++++--------
 tests/MiniExcelTests/MiniExcelIssueTests.cs   |  25 ++++++++++
 tests/MiniExcelTests/MiniExcelOpenXmlTests.cs |   6 +--
 5 files changed, 53 insertions(+), 34 deletions(-)
 create mode 100644 samples/xlsx/TestIssue459.xlsx

diff --git a/samples/xlsx/TestIssue459.xlsx b/samples/xlsx/TestIssue459.xlsx
new file mode 100644
index 0000000000000000000000000000000000000000..eb9875d454002af00ed2ebe3daa1c1eb17cbaf26
GIT binary patch
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diff --git a/src/MiniExcel/MiniExcel.cs b/src/MiniExcel/MiniExcel.cs
index dd1ea4ff..d5ce287c 100644
--- a/src/MiniExcel/MiniExcel.cs
+++ b/src/MiniExcel/MiniExcel.cs
@@ -298,18 +298,7 @@ public static IList<ExcelRange> GetSheetDimensions(this Stream stream)
         {
             return new ExcelOpenXmlSheetReader(stream, null).GetDimensions();
         }
-
-        public static IList<ExcelRange> GetSheetsDimensions(string path)
-        {
-            using (var stream = FileHelper.OpenSharedRead(path))
-                return GetSheetsDimensions(stream);
-        }
-
-        public static IList<ExcelRange> GetSheetsDimensions(this Stream stream)
-        {
-            return new ExcelOpenXmlSheetReader(stream, null).GetDimensions();
-        }
-
+        
         public static void ConvertCsvToXlsx(string csv, string xlsx)
         {
             using (var csvStream = FileHelper.OpenSharedRead(csv))
diff --git a/src/MiniExcel/SaveByTemplate/ExcelOpenXmlTemplate.Impl.cs b/src/MiniExcel/SaveByTemplate/ExcelOpenXmlTemplate.Impl.cs
index 953e306e..9695f508 100644
--- a/src/MiniExcel/SaveByTemplate/ExcelOpenXmlTemplate.Impl.cs
+++ b/src/MiniExcel/SaveByTemplate/ExcelOpenXmlTemplate.Impl.cs
@@ -991,30 +991,38 @@ private static void ReplaceSharedStringsToStr(IDictionary<int, string> sharedStr
 
         private void UpdateDimensionAndGetRowsInfo(IDictionary<string, object> inputMaps, XmlDocument doc, XmlNodeList rows, bool changeRowIndex = true)
         {
-            // note : dimension need to put on the top (https://user-images.githubusercontent.com/12729184/114507911-5dd88400-9c66-11eb-94c6-82ed7bdb5aab.png)
+            string[] refs;
+            if (doc.SelectSingleNode("/x:worksheet/x:dimension", _ns) is XmlElement dimension)
+            {
+                refs = dimension.GetAttribute("ref").Split(':');
+            }
+            else
+            {
+                var firstRow = rows[0].SelectNodes("x:c", _ns);
+                var lastRow = rows[rows.Count - 1].SelectNodes("x:c", _ns);
+                
+                var dimStart = ((XmlElement)firstRow?[0])?.GetAttribute("r");
+                var dimEnd = ((XmlElement)lastRow?[lastRow.Count - 1])?.GetAttribute("r");
+                
+                refs = new[] { dimStart, dimEnd };
 
-            var dimension = doc.SelectSingleNode("/x:worksheet/x:dimension", _ns) as XmlElement;
-            if (dimension == null)
-                throw new NotImplementedException("Excel Dimension Xml is null, please file an issue for this problem: https://github.com/mini-software/MiniExcel/issues");
+                dimension = (XmlElement)doc.CreateNode(XmlNodeType.Element, "dimension", null);
+                var worksheet = doc.SelectSingleNode("/x:worksheet", _ns);
+                worksheet?.InsertBefore(dimension, worksheet.FirstChild);
+            }
 
             var maxRowIndexDiff = 0;
             foreach (XmlElement row in rows)
             {
                 // ==== get ienumerable infomation & maxrowindexdiff ====
-                //Type ienumerableGenricType = null;
-                //IDictionary<string, PropertyInfo> props = null;
-                //IEnumerable ienumerable = null;
                 
-                var xRowInfo = new XRowInfo
-                {
-                    Row = row
-                };
-
+                var xRowInfo = new XRowInfo { Row = row };
                 _xRowInfos.Add(xRowInfo);
+
                 foreach (XmlElement c in row.SelectNodes("x:c", _ns))
                 {
                     var r = c.GetAttribute("r");
-
+                    
                     // ==== mergecells ====
                     if (_xMergeCellInfos.TryGetValue(r, out var merCell))
                     {
@@ -1122,7 +1130,7 @@ private void UpdateDimensionAndGetRowsInfo(IDictionary<string, object> inputMaps
                                     }
 
                                     // ==== get dimension max rowindex ====
-                                    if (!first) //avoid duplicate add first one, this row not add status  ![image](https://user-images.githubusercontent.com/12729184/114851829-d2512580-9e14-11eb-8e7d-520c89a7ebee.png)
+                                    if (!first) //avoid duplicate add first one, this row not add status  (https://user-images.githubusercontent.com/12729184/114851829-d2512580-9e14-11eb-8e7d-520c89a7ebee.png)
                                         maxRowIndexDiff += xRowInfo.IEnumerableMercell?.Height ?? 1;
                                     first = false;
                                 }
@@ -1183,7 +1191,7 @@ private void UpdateDimensionAndGetRowsInfo(IDictionary<string, object> inputMaps
                                 foreach (var element in xRowInfo.CellIEnumerableValues)
                                 {
                                     // ==== get demension max rowindex ====
-                                    if (!first) //avoid duplicate add first one, this row not add status  ![image](https://user-images.githubusercontent.com/12729184/114851829-d2512580-9e14-11eb-8e7d-520c89a7ebee.png)
+                                    if (!first) //avoid duplicate add first one, this row not add status (https://user-images.githubusercontent.com/12729184/114851829-d2512580-9e14-11eb-8e7d-520c89a7ebee.png)
                                         maxRowIndexDiff++;
                                     first = false;
                                 }
@@ -1249,20 +1257,17 @@ private void UpdateDimensionAndGetRowsInfo(IDictionary<string, object> inputMaps
                 }
             }
 
-            // e.g <dimension ref=\"A1:B6\" /> only need to update B6 to BMaxRowIndex
-            var refs = dimension.GetAttribute("ref").Split(':');
+            // e.g <dimension ref=\"A1:B6\" /> we only need to update B6 to BMaxRowIndex
             if (refs.Length == 2)
             {
                 var letter = StringHelper.GetLetters(refs[1]);
                 var digit = StringHelper.GetNumber(refs[1]);
-
                 dimension.SetAttribute("ref", $"{refs[0]}:{letter}{digit + maxRowIndexDiff}");
             }
             else
             {
                 var letter = StringHelper.GetLetters(refs[0]);
                 var digit = StringHelper.GetNumber(refs[0]);
-
                 dimension.SetAttribute("ref", $"A1:{letter}{digit + maxRowIndexDiff}");
             }
         }
diff --git a/tests/MiniExcelTests/MiniExcelIssueTests.cs b/tests/MiniExcelTests/MiniExcelIssueTests.cs
index 88d88cca..e0eea3ac 100644
--- a/tests/MiniExcelTests/MiniExcelIssueTests.cs
+++ b/tests/MiniExcelTests/MiniExcelIssueTests.cs
@@ -3615,6 +3615,31 @@ public void Issue422()
         Assert.Equal(1, enumerableWithCount.GetEnumeratorCount);
     }
 
+    [Fact]
+    public void Issue459()
+    {
+        var template = PathHelper.GetFile("xlsx/TestIssue459.xlsx");
+        using var ms = new MemoryStream();
+        var values = new
+        {
+            title = "FooCompany",
+            managers = new[] 
+            {
+                new { name = "Jack", department = "HR" },
+                new { name = "Loan", department = "IT" }
+            },
+            employees = new[] 
+            {
+                new { name = "Wade", department = "HR" },
+                new { name = "Felix", department = "HR" },
+                new { name = "Eric", department = "IT" },
+                new { name = "Keaton", department = "IT" }
+            }
+        };
+        
+        ms.SaveAsByTemplate(template, values);
+    }
+    
     private class Issue585VO1
     {
         public string Col1 { get; set; }
diff --git a/tests/MiniExcelTests/MiniExcelOpenXmlTests.cs b/tests/MiniExcelTests/MiniExcelOpenXmlTests.cs
index 53f38215..2a10d3a5 100644
--- a/tests/MiniExcelTests/MiniExcelOpenXmlTests.cs
+++ b/tests/MiniExcelTests/MiniExcelOpenXmlTests.cs
@@ -1549,7 +1549,7 @@ public void DateOnlySupportTest()
     public void SheetDimensionsTest()
     {
         var path1 = PathHelper.GetFile("xlsx/TestTypeMapping.xlsx");
-        var dim1 = MiniExcel.GetSheetsDimensions(path1);
+        var dim1 = MiniExcel.GetSheetDimensions(path1);
         Assert.Equal("A1", dim1[0].StartCell);
         Assert.Equal("H101", dim1[0].EndCell);
         Assert.Equal(101, dim1[0].Rows.Count);
@@ -1560,7 +1560,7 @@ public void SheetDimensionsTest()
         Assert.Equal(8, dim1[0].Columns.EndIndex);
 
         var path2 = PathHelper.GetFile("xlsx/TestNoDimension.xlsx");
-        var dim2 = MiniExcel.GetSheetsDimensions(path2);
+        var dim2 = MiniExcel.GetSheetDimensions(path2);
         Assert.Equal(101, dim2[0].Rows.Count);
         Assert.Equal(7, dim2[0].Columns.Count);
         Assert.Equal(1, dim2[0].Rows.StartIndex);
@@ -1573,7 +1573,7 @@ public void SheetDimensionsTest()
     public void SheetDimensionsTest_MultiSheet()
     {
         var path = PathHelper.GetFile("xlsx/TestMultiSheet.xlsx");
-        var dim = MiniExcel.GetSheetsDimensions(path);
+        var dim = MiniExcel.GetSheetDimensions(path);
         
         Assert.Equal("A1", dim[0].StartCell);
         Assert.Equal("D12", dim[0].EndCell);