[New] Support CSV Insert #I4X92G (via @shps951023)

README.md

@@ -934,6 +934,46 @@ Since V1.26.0, we can set the attributes of Column dynamically
 
 
 
+### Add, Delete, Update
+
+#### Add
+
+v1.28.0 support CSV insert N rows data after last row
+
+```csharp
+// Origin
+{
+    var value = new[] {
+          new { ID=1,Name ="Jack",InDate=new DateTime(2021,01,03)},
+          new { ID=2,Name ="Henry",InDate=new DateTime(2020,05,03)},
+    };
+    MiniExcel.SaveAs(path, value);
+}
+// Insert 1 rows after last
+{ 
+    var value = new { ID=3,Name = "Mike", InDate = new DateTime(2021, 04, 23) };
+    MiniExcel.Insert(path, value);
+}
+// Insert N rows after last
+{
+    var value = new[] {
+          new { ID=4,Name ="Frank",InDate=new DateTime(2021,06,07)},
+          new { ID=5,Name ="Gloria",InDate=new DateTime(2022,05,03)},
+    };
+    MiniExcel.Insert(path, value);
+}
+```
+
+![image](https://user-images.githubusercontent.com/12729184/191023733-1e2fa732-db5c-4a3a-9722-b891fe5aa069.png)
+
+
+
+#### Delete(waiting)
+
+#### Update(waiting)
+
+
+
 ### Excel Type Auto Check <a name="getstart5"></a>
 
 - MiniExcel will check whether it is xlsx or csv based on the `file extension` by default, but there may be inaccuracy, please specify it manually.

README.zh-CN.md

@@ -534,6 +534,8 @@ MiniExcel.SaveAs(path, value);
 
 
 
+
+
 ### 模板填充 Excel <a name="getstart3"></a>
 
 - 宣告方式类似 Vue 模板 `{{变量名称}}`, 或是集合渲染 `{{集合名称.栏位名称}}`
@@ -933,7 +935,43 @@ public class TestIssueI4TXGTDto
 
 
 
+### 新增、删除、修改
+
+#### 新增
+
+v1.28.0 开始支持 CSV 插入新增，在最后一行新增N笔数据
+
+```csharp
+// 原始数据
+{
+    var value = new[] {
+          new { ID=1,Name ="Jack",InDate=new DateTime(2021,01,03)},
+          new { ID=2,Name ="Henry",InDate=new DateTime(2020,05,03)},
+    };
+    MiniExcel.SaveAs(path, value);
+}
+// 最后一行新增一行数据
+{ 
+    var value = new { ID=3,Name = "Mike", InDate = new DateTime(2021, 04, 23) };
+    MiniExcel.Insert(path, value);
+}
+// 最后一行新增N行数据
+{
+    var value = new[] {
+          new { ID=4,Name ="Frank",InDate=new DateTime(2021,06,07)},
+          new { ID=5,Name ="Gloria",InDate=new DateTime(2022,05,03)},
+    };
+    MiniExcel.Insert(path, value);
+}
+```
+
+![image](https://user-images.githubusercontent.com/12729184/191023733-1e2fa732-db5c-4a3a-9722-b891fe5aa069.png)
+
+
+
+#### 删除(未完成)
 
+#### 修改(未完成)
 
 ### Excel 类别自动判断 <a name="getstart5"></a>
 

README.zh-Hant.md

@@ -937,6 +937,46 @@ public class TestIssueI4TXGTDto
 
 
 
+### 新增、刪除、修改
+
+#### 新增
+
+v1.28.0 開始支持 CSV 插入新增，在最後一行新增N筆數據
+
+```csharp
+// 原始數據
+{
+    var value = new[] {
+          new { ID=1,Name ="Jack",InDate=new DateTime(2021,01,03)},
+          new { ID=2,Name ="Henry",InDate=new DateTime(2020,05,03)},
+    };
+    MiniExcel.SaveAs(path, value);
+}
+// 最後一行新增一行數據
+{ 
+    var value = new { ID=3,Name = "Mike", InDate = new DateTime(2021, 04, 23) };
+    MiniExcel.Insert(path, value);
+}
+// 最後一行新增N行數據
+{
+    var value = new[] {
+          new { ID=4,Name ="Frank",InDate=new DateTime(2021,06,07)},
+          new { ID=5,Name ="Gloria",InDate=new DateTime(2022,05,03)},
+    };
+    MiniExcel.Insert(path, value);
+}
+```
+
+![image](https://user-images.githubusercontent.com/12729184/191023733-1e2fa732-db5c-4a3a-9722-b891fe5aa069.png)
+
+
+
+#### 刪除(未完成)
+
+#### 修改(未完成)
+
+
+
 ### Excel 類別自動判斷 <a name="getstart5"></a>
 
 - MiniExcel 預設會根據`文件擴展名`判斷是 xlsx 還是 csv，但會有失準時候，請自行指定。

docs/README.md

@@ -24,6 +24,10 @@
 
 
 
+## 1.28.0
+
+- [New] Support CSV Insert #I4X92G (via @shps951023)
+
 ### 1.27.0
 
 - [New] Support DateTimeOffset and ExcelFormat #430 (via @Lightczx , @shps951023 )

docs/README.zh-CN.md

@@ -27,6 +27,12 @@
 
 
 
+
+
+## 1.28.0
+
+- [New] 支持 CSV Insert 方法 #I4X92G (via @shps951023)
+
 ### 1.27.0
 
 - [New] 支持 DateTimeOffset and ExcelFormat #430 (via @Lightczx , @shps951023 )

docs/README.zh-Hant.md

@@ -26,6 +26,10 @@
 
 
 
+## 1.28.0
+
+- [New] 支持 CSV Insert 方法 #I4X92G (via @shps951023)
+
 ### 1.27.0
 
 - [New] 支持 DateTimeOffset and ExcelFormat #430 (via @Lightczx , @shps951023 )

src/MiniExcel/Csv/CsvWriter.cs

@@ -18,9 +18,10 @@ internal class CsvWriter : IExcelWriter, IDisposable
         private readonly Stream _stream;
         private readonly CsvConfiguration _configuration;
         private readonly bool _printHeader;
-        private readonly object _value;
+        private object _value;
         private readonly StreamWriter _writer;
         private bool disposedValue;
+        private object _insertValue;
 
         public CsvWriter(Stream stream, object value, IConfiguration configuration, bool printHeader)
         {
@@ -81,7 +82,7 @@ public void SaveAs()
                                 {
                                     mode = "Properties";
                                     genericType = item.GetType();
-                                    props = CustomPropertyHelper.GetSaveAsProperties(genericType,_configuration);
+                                    props = CustomPropertyHelper.GetSaveAsProperties(genericType, _configuration);
                                 }
 
                                 break;
@@ -138,6 +139,11 @@ public void SaveAs()
             }
         }
 
+        public void Insert()
+        {
+            SaveAs();
+        }
+
         public async Task SaveAsAsync(CancellationToken cancellationToken = default(CancellationToken))
         {
             await Task.Run(() => SaveAs(),cancellationToken).ConfigureAwait(false);

src/MiniExcel/IExcelWriter.cs

@@ -8,5 +8,6 @@ internal interface IExcelWriter
     {
         void SaveAs();
         Task SaveAsAsync(CancellationToken cancellationToken = default(CancellationToken));
+        void Insert();
     }
 }

src/MiniExcel/MiniExcel.cs

@@ -4,6 +4,7 @@
     using MiniExcelLibs.Utils;
     using MiniExcelLibs.Zip;
     using System;
+    using System.Collections;
     using System.Collections.Generic;
     using System.Data;
     using System.Dynamic;
@@ -24,6 +25,28 @@ public static MiniExcelDataReader GetReader(this Stream stream, bool useHeaderRo
             return new MiniExcelDataReader(stream, useHeaderRow, sheetName, excelType, startCell, configuration);
         }
 
+        public static void Insert(string path, object value, string sheetName = "Sheet1", ExcelType excelType = ExcelType.UNKNOWN, IConfiguration configuration = null)
+        {
+            if (Path.GetExtension(path).ToLowerInvariant() != ".csv")
+                throw new NotSupportedException("MiniExcel SaveAs only support csv insert now");
+
+            using (var stream = new FileStream(path, FileMode.Append, FileAccess.Write, FileShare.Read, 4096, FileOptions.SequentialScan))
+                Insert(stream, value, sheetName, ExcelTypeHelper.GetExcelType(path, excelType), configuration);
+        }
+
+        public static void Insert(this Stream stream, object value, string sheetName = "Sheet1", ExcelType excelType = ExcelType.XLSX, IConfiguration configuration = null)
+        {
+            // reuse code
+            object v = null;
+            {
+                if (!(value is IEnumerable) && !(value is IDataReader) && !(value is IDictionary<string, object>) && !(value is IDictionary))
+                    v = Enumerable.Range(0, 1).Select(s => value);
+                else
+                    v = value;
+            }
+            ExcelWriterFactory.GetProvider(stream, v, sheetName, excelType, configuration, false).Insert();
+        }
+
         public static void SaveAs(string path, object value, bool printHeader = true, string sheetName = "Sheet1", ExcelType excelType = ExcelType.UNKNOWN, IConfiguration configuration = null,bool overwriteFile = false)
         {
             if (Path.GetExtension(path).ToLowerInvariant() == ".xlsm")

src/MiniExcel/MiniExcelLibs.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
 		<TargetFrameworks>net45;netstandard2.0;net5.0</TargetFrameworks>
-		<Version>1.27.0</Version>
+		<Version>1.28.0</Version>
 	</PropertyGroup>
 	<PropertyGroup>
 		<AssemblyName>MiniExcel</AssemblyName>
@@ -11,22 +11,22 @@
 		<Description>
 			Fast, Low-Memory, Easy Excel .NET helper to import/export/template spreadsheet
 
-			Github : https://github.com/MiniExcel/MiniExcel
+			Github : https://github.com/mini-software/MiniExcel
 			Gitee : https://gitee.com/dotnetchina/MiniExcel
-			Issues : https://github.com/MiniExcel/MiniExcel/issues
-			Todo : https://github.com/MiniExcel/MiniExcel/projects/1?fullscreen=true
+			Issues : https://github.com/mini-software/MiniExcel/issues
+			Todo : https://github.com/mini-software/MiniExcel/projects/1?fullscreen=true
 		</Description>
 		<Authors>LIN,WEI-HAN</Authors>
 		<PackageId>MiniExcel</PackageId>
 		<Copyright>LIN,WEI-HAN, 2021 onwards</Copyright>
 		<NeutralLanguage>en</NeutralLanguage>
-		<license>https://raw.githubusercontent.com/MiniExcel/MiniExcel/master/LICENSE</license>
+		<license>https://raw.githubusercontent.com/mini-software/MiniExcel/master/LICENSE</license>
 		<RootNamespace>MiniExcelLibs</RootNamespace>
 		<PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
-		<PackageProjectUrl>https://github.com/MiniExcel/MiniExcel</PackageProjectUrl>
-		<RepositoryUrl>https://github.com/MiniExcel/MiniExcel</RepositoryUrl>
+		<PackageProjectUrl>https://github.com/mini-software/MiniExcel</PackageProjectUrl>
+		<RepositoryUrl>https://github.com/mini-software/MiniExcel</RepositoryUrl>
 		<PackageIcon>icon.png</PackageIcon>
-		<PackageReleaseNotes>Please Check [Release Notes](https://github.com/MiniExcel/MiniExcel/tree/master/docs)</PackageReleaseNotes>
+		<PackageReleaseNotes>Please Check [Release Notes](https://github.com/mini-software/MiniExcel/tree/master/docs)</PackageReleaseNotes>
 		<RepositoryType>Github</RepositoryType>
 	</PropertyGroup>
 	<ItemGroup Condition=" '$(TargetFramework)' == 'net461'">

src/MiniExcel/OpenXml/ExcelOpenXmlSheetWriter.cs

@@ -63,6 +63,10 @@ public ExcelOpenXmlSheetWriter(Stream stream, object value, string sheetName, IC
             _sheets.Add(new SheetDto { Name = sheetName, SheetIdx = 1 }); //TODO:remove
         }
 
+        public ExcelOpenXmlSheetWriter()
+        {
+        }
+
         public void SaveAs()
         {
             GenerateDefaultOpenXml();
@@ -777,5 +781,10 @@ private string GetDimensionRef(int maxRowIndex, int maxColumnIndex)
         {
             await Task.Run(() => SaveAs(),cancellationToken).ConfigureAwait(false);
         }
+
+        public void Insert()
+        {
+            throw new NotImplementedException();
+        }
     }
 }