create read csv extension method

PlayGround/PlayGround.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
+    <LangVersion>10.0</LangVersion>
+  </PropertyGroup>
+
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+    <LangVersion>10.0</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\src\Shane32.ExcelLinq.Tests\Shane32.ExcelLinq.Tests.csproj" />
+  </ItemGroup>
+
+</Project>

PlayGround/Program.cs

@@ -0,0 +1,17 @@
+// See https://aka.ms/new-console-template for more information
+using Shane32.ExcelLinq.Tests.Models;
+
+Console.WriteLine("Hello, World!");
+
+
+
+using var stream1 = new System.IO.FileStream("test.xlsx", System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
+var tt = new TestFileContext(stream1);
+var pp = tt.GetSheet<Class1>();
+var xl = new TestFileContext();
+using var stream = new System.IO.FileStream("test.csv", System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
+var t = xl.ReadCsv<Class1>(stream);
+
+
+var g = t;
+

Shane32.ExcelLinq.sln

@@ -39,6 +39,10 @@ Global
 		{83E2AC89-22B4-438D-92CF-FDA280B63CFD}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{83E2AC89-22B4-438D-92CF-FDA280B63CFD}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{83E2AC89-22B4-438D-92CF-FDA280B63CFD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1F2D99BC-84B4-4704-B3AB-C9EB6A2091B7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1F2D99BC-84B4-4704-B3AB-C9EB6A2091B7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1F2D99BC-84B4-4704-B3AB-C9EB6A2091B7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1F2D99BC-84B4-4704-B3AB-C9EB6A2091B7}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

src/Shane32.ExcelLinq.Tests/General/EndToEnd.cs

@@ -21,6 +21,18 @@ public void NullConstructorsThrow()
             Assert.ThrowsException<ArgumentNullException>(() => new TestFileContext((ExcelPackage)null));
         }
 
+
+        [TestMethod]
+        public void ReadSampleCsvFile()
+        {
+            var xl = new TestFileContext();
+            using var stream1 = new System.IO.FileStream("test1.csv", System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
+            using var stream2 = new System.IO.FileStream("test2.csv", System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read);
+            xl.ReadCsv<Class1>(stream1, "Sheet1");
+            xl.ReadCsv<Class1>(stream2, "Sheet2");
+            ReadSample1File_test(xl);
+        }
+
         [TestMethod]
         public void ReadSample1File()
         {
@@ -55,7 +67,8 @@ public void ReadAndWrite()
             Assert.AreEqual(xl.GetSheet<Class1>().Count, xl2.GetSheet<Class1>().Count);
         }
 
-        public void ReadSample1File_test(TestFileContext xl) {
+        public void ReadSample1File_test(TestFileContext xl)
+        {
             var sheet1 = xl.GetSheet<TestFileContext.Sheet1>();
             var sheet2 = xl.GetSheet<Class1>();
             Assert.AreEqual(2, sheet1.Count);

src/Shane32.ExcelLinq.Tests/Models/TestFileContext.cs

@@ -7,27 +7,31 @@ namespace Shane32.ExcelLinq.Tests.Models
 {
     public class TestFileContext : ExcelContext
     {
+        public TestFileContext() : base() { }
         public TestFileContext(System.IO.Stream stream) : base(stream) { }
         public TestFileContext(string filename) : base(filename) { }
         public TestFileContext(ExcelPackage excelPackage) : base(excelPackage) { }
 
         protected override void OnModelCreating(ExcelModelBuilder builder)
         {
             Action<ExcelRange> headerFormatter = range => {
+
                 range.Style.HorizontalAlignment = OfficeOpenXml.Style.ExcelHorizontalAlignment.Center;
                 range.Style.Border.Bottom.Style = OfficeOpenXml.Style.ExcelBorderStyle.Thin;
             };
+            builder.ReadCsv();
+
             Action<ExcelRange> numberFormatter = range => range.Style.Numberformat.Format = "#,##0.00";
             var sheet1 = builder.Sheet<Sheet1>();
-            sheet1.Column(x => x.Date)
+            sheet1.Column(x => x.Date).AlternateName("its a date")
                 .HeaderFormatter(headerFormatter)
                 .ColumnFormatter(range => range.Style.Numberformat.Format = "MM/dd/yyyy");
             sheet1.Column(x => x.Quantity)
                 .HeaderFormatter(headerFormatter)
                 .ColumnFormatter(range => range.Style.HorizontalAlignment = OfficeOpenXml.Style.ExcelHorizontalAlignment.Center);
             sheet1.Column(x => x.Description)
                 .HeaderFormatter(headerFormatter);
-            sheet1.Column(x => x.Amount)
+            sheet1.Column(x => x.Amount).AlternateName("some amount")
                 .HeaderFormatter(headerFormatter)
                 .ColumnFormatter(numberFormatter);
             sheet1.Column(x => x.Total)
@@ -62,19 +66,19 @@ protected override void OnModelCreating(ExcelModelBuilder builder)
             sheet1.WriteRangeLocator(worksheet => worksheet.Cells[3, 1]);
             sheet1.WritePolisher((worksheet, range) => {
                 worksheet.Calculate();
-                for (int col = 1; col <= worksheet.Dimension.End.Column; col++) {
-                    var column = worksheet.Column(col);
-                    column.AutoFit();
-                    column.Width *= 1.2;
-                }
+                //for (int col = 1; col <= worksheet.Dimension.End.Column; col++) {
+                //    var column = worksheet.Column(col);
+                //    column.AutoFit();
+                //    column.Width *= 1.2;
+                //}
                 worksheet.Cells[1, 1].Value = "This is a test header";
             });
 
             var sheet2 = builder.Sheet<Class1>("Sheet2");
             sheet2.Column(x => x.IntColumn);
             sheet2.Column(x => x.FloatColumn);
             sheet2.Column(x => x.DoubleColumn);
-            sheet2.Column(x => x.StringColumn);
+            sheet2.Column(x => x.StringColumn).AlternateName("be a string column");
             sheet2.Column(x => x.BooleanColumn);
             sheet2.Column(x => x.DateTimeColumn)
                 .ColumnFormatter(range => range.Style.Numberformat.Format = "MM/dd/yyyy hh:mm AM/PM");

src/Shane32.ExcelLinq.Tests/Shane32.ExcelLinq.Tests.csproj

@@ -7,6 +7,24 @@
     <TargetFrameworks>netcoreapp3.1;net5.0;net6.0;net462;net48</TargetFrameworks>
   </PropertyGroup>
 
+  <ItemGroup>
+    <None Remove="test.csv" />
+    <None Remove="test1.csv" />
+    <None Remove="test2.csv" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="test.csv">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test1.csv">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+    <Content Include="test2.csv">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="coverlet.msbuild" Version="2.9.0">
       <PrivateAssets>all</PrivateAssets>

src/Shane32.ExcelLinq.Tests/test.csv

@@ -0,0 +1,10 @@
+IntColumn,FloatColumn,DoubleColumn,StringColumn,BooleanColumn,DateTimeColumn,TimespanColumn,UriColumn,GuidColumn,NullableIntColumn
+1,1,1,test,TRUE,2-Aug,02:00 PM,http://localhost/test,f1dc7e7d-d63e-4279-8dfd-cecb6e26cda8,3
+1.1,1.1,1.1,test2,FALSE,8/1/2020,14:00,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,3.1
+1,1.1,1.1,test2,true,8/3/20,14:00,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,3
+1.1,1.1,1.1,test2,yes,8/1/20 2:30 PM,02:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,NO,8/1/20 2:30 PM,02:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,y,8/1/20 2:30 PM,02:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,N,8/1/20 2:30 PM,02:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,1,8/1/20 2:30 PM,02:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,0,8/1/20 2:30 PM,02:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,

src/Shane32.ExcelLinq.Tests/test1.csv

@@ -0,0 +1,3 @@
+Date,Quantity,Description,Amount, Total ,Notes
+7/1/2020,52,Widgets,45.99 ," $2,391.48 ",
+7/23/2020,22,Bolts,2.54 , $55.88 ,Each bolt is a set of two

src/Shane32.ExcelLinq.Tests/test2.csv

@@ -0,0 +1,10 @@
+IntColumn,FloatColumn,DoubleColumn,StringColumn,BooleanColumn,DateTimeColumn,TimespanColumn,UriColumn,GuidColumn,NullableIntColumn
+1,1,1,test,TRUE,2-Aug,2:00 PM,http://localhost/test,f1dc7e7d-d63e-4279-8dfd-cecb6e26cda8,3
+1.1,1.1,1.1,test2,FALSE,8/1/2020,14:00,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,3.1
+1,1.1,1.1,test2,true,8/3/20,14:00,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,3
+1.1,1.1,1.1,test2,yes,8/1/20 2:30 PM,2:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,NO,8/1/20 2:30 PM,2:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,y,8/1/20 2:30 PM,2:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,N,8/1/20 2:30 PM,2:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,1,8/1/20 2:30 PM,2:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,
+1.1,1.1,1.1,test2,0,8/1/20 2:30 PM,2:34,http://localhost/help,89892480-4179-42c7-9e2f-e0bb1094dd6b,

src/Shane32.ExcelLinq/Builders/ExcelModelBuilder.cs

@@ -11,12 +11,13 @@ public class ExcelModelBuilder : IExcelModel, ISheetModelLookup
         internal Dictionary<string, ISheetModel> _sheetDictionary = new Dictionary<string, ISheetModel>();
         internal Dictionary<Type, ISheetModel> _typeDictionary = new Dictionary<Type, ISheetModel>();
         private bool _ignoreSheetNames;
+        public bool _readCsv;
 
         public SheetModelBuilder<T> Sheet<T>() where T : new()
         {
             return Sheet<T>(typeof(T).Name);
         }
-
+        
         public SheetModelBuilder<T> Sheet<T>(string name) where T : new()
         {
             if (name == null)
@@ -34,6 +35,8 @@ public void IgnoreSheetNames()
         {
             _ignoreSheetNames = true;
         }
+        bool IExcelModel.ReadCsv => _readCsv;
+        public void ReadCsv() => _readCsv = true;
 
         IEnumerator<ISheetModel> IEnumerable<ISheetModel>.GetEnumerator() => _sheets.GetEnumerator();
 

src/Shane32.ExcelLinq/Builders/SheetModelBuilder.cs

@@ -32,6 +32,7 @@ public SheetModelBuilder(ExcelModelBuilder excelModelBuilder, string name)
                 excelModelBuilder._typeDictionary.Add(typeof(T), this);
         }
 
+
         public SheetModelBuilder<T> AlternateName(string name)
         {
             if (string.IsNullOrWhiteSpace(name))