fix : conversion to csv

Blazor/Blazor/Blazor.csproj

@@ -27,6 +27,7 @@
     <PackageReference Include="ChoETL.NETStandard" Version="1.2.1.64" />
     <PackageReference Include="Microsoft.Extensions.Localization" Version="8.0.1" />
     <PackageReference Include="Microsoft.Extensions.Logging.Configuration" Version="8.0.0" />
+    <PackageReference Include="SuperConvert" Version="1.0.4.9" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
   </ItemGroup>

Blazor/Blazor/Pages/Questions/Questions.razor.cs

@@ -13,6 +13,7 @@ using Blazored.Modal;
 using System.Text.RegularExpressions;
 using Blazor.Components;
 using Microsoft.Extensions.Localization;
+using SuperConvert.Extensions;
 
 namespace Blazor.Pages.Questions;
 
@@ -110,15 +111,9 @@ public partial class Questions
         StringBuilder sb = new StringBuilder();
         HttpResponseMessage response = await Http.GetAsync(API.API_URL+"questionsExport/"+API.TOKEN);
         var json = await response.Content.ReadAsStringAsync();
-        using (var jsonFile = ChoJSONReader.LoadText(json))
-        {
-            using (var csvFile = new ChoCSVWriter(sb).WithFirstLineHeader())
-            {
-                csvFile.Write(jsonFile);
-            }
-        }
-
-        var sentFile = new MemoryStream(Encoding.Unicode.GetBytes(sb.ToString()));
+        byte[] csv = json.ToCsv(';');
+        string csvString = Encoding.Unicode.GetString(csv);
+        var sentFile = new MemoryStream(Encoding.Unicode.GetBytes(csvString));
         using (var streamRef = new DotNetStreamReference(stream: sentFile))
         {
             await IJSRuntime.InvokeVoidAsync("downloadFileFromStream", "data.csv", streamRef);
@@ -131,9 +126,10 @@ public partial class Questions
         {
             await e.File.OpenReadStream().CopyToAsync(ms);
             var bytes = ms.ToArray();
-            string s = Encoding.UTF8.GetString(bytes);
+            string s = Encoding.Unicode.GetString(bytes);
 
             s = s.Replace("\r\n", "\n");
+            s = s.Replace("\0", "");
             var rows = s.Split('\n');
             rows = rows.Skip(1).ToArray();