Add ListToCSV Class

Add ListToCSV Class

Author: devgis

CsharpLibs/CsharpLibs.csproj

@@ -34,6 +34,9 @@
     <Reference Include="ICSharpCode.SharpZipLib, Version=0.86.0.518, Culture=neutral, PublicKeyToken=1b03e6acf1164f73, processorArchitecture=MSIL">
       <HintPath>..\packages\SharpZipLib.0.86.0\lib\20\ICSharpCode.SharpZipLib.dll</HintPath>
     </Reference>
+    <Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\packages\Newtonsoft.Json.12.0.2\lib\net40\Newtonsoft.Json.dll</HintPath>
+    </Reference>
     <Reference Include="NPOI, Version=2.4.1.0, Culture=neutral, PublicKeyToken=0df73ec7942b34e1, processorArchitecture=MSIL">
       <HintPath>..\packages\NPOI.2.4.1\lib\net40\NPOI.dll</HintPath>
     </Reference>
@@ -84,6 +87,7 @@
     <Compile Include="DataGridViewPrint.cs" />
     <Compile Include="DESEncrptor.cs" />
     <Compile Include="HttpHelper.cs" />
+    <Compile Include="ListToCSV.cs" />
     <Compile Include="Loger.cs" />
     <Compile Include="Loger2.cs" />
     <Compile Include="MessageHelperWinform.cs" />

CsharpLibs/ListToCsv.cs

@@ -0,0 +1,74 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace DEVGIS.CsharpLibs
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public class ListToCSV
+    {
+        public static string ExportToCSV<T>(List<T> list)
+        {
+            if (list == null || list.Count <= 0)
+            {
+                throw (new Exception("List is null or empty!"));
+            }
+            StringBuilder sb = new StringBuilder();
+            string header = string.Empty;
+            var properties = typeof(T).GetProperties();
+            if (properties == null || properties.Length <= 0)
+            {
+                throw (new Exception("Properties is null!"));
+            }
+            for (int i = 0; i < properties.Length; i++)
+            {
+                if (i == 0)
+                {
+                    header += properties[i].Name;
+                }
+                else
+                {
+                    header += "," + properties[i].Name;
+                }
+                sb.AppendLine(header);
+            }
+            foreach (var item in list)
+            {
+                string rowdata = string.Empty;
+                for (int i = 0; i < properties.Length; i++)
+                {
+                    try
+                    {
+                        var value = JsonConvert.SerializeObject(properties[i].GetValue(item, null));
+                        value = value.TrimStart('[').TrimEnd(']').Replace(",", "；");
+                        if (i == 0)
+                        {
+                            rowdata += value;
+                        }
+                        else
+                        {
+                            rowdata += "," + value;
+                        }
+                    }
+                    catch (Exception ex)
+                    {
+                        if (i == 0)
+                        {
+                            rowdata += string.Empty;
+                        }
+                        else
+                        {
+                            rowdata += ","+string.Empty;
+                        }
+                    }
+                }
+                sb.AppendLine(rowdata);
+            }
+            return sb.ToString();
+        }
+    }
+}

CsharpLibs/packages.config

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Net.Http" version="2.0.20710.0" targetFramework="net40" />
+  <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net40" />
   <package id="NPOI" version="2.4.1" targetFramework="net40" />
   <package id="Oracle.ManagedDataAccess" version="18.6.0" targetFramework="net40" />
   <package id="SharpZipLib" version="0.86.0" targetFramework="net40" />