fix : Import question from CSV file

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

@@ -126,23 +126,23 @@ public partial class Questions
         {
             await e.File.OpenReadStream().CopyToAsync(ms);
             var bytes = ms.ToArray();
-            string s = Encoding.Unicode.GetString(bytes);
+            string s = Encoding.UTF8.GetString(bytes);
 
-            s = s.Replace("\r\n", "\n");
-            s = s.Replace("\0", "");
+            s = s.Replace("\"", string.Empty);
             var rows = s.Split('\n');
             rows = rows.Skip(1).ToArray();
 
             foreach (var row in rows)
             {
                 var field = row.Split(';');
+                field[1] = field[1].Replace(" ", "+");
                 var formData = new List<KeyValuePair<string, string>>();
                 formData.Add(new KeyValuePair<string, string>("content", field[0]));
-                formData.Add(new KeyValuePair<string, string>("answerContent1", field[2]));
-                formData.Add(new KeyValuePair<string, string>("answerContent2", field[3]));
-                formData.Add(new KeyValuePair<string, string>("answerContent3", field[4]));
-                formData.Add(new KeyValuePair<string, string>("answerContent4", field[5]));
-                formData.Add(new KeyValuePair<string, string>("idanswergood", field[6]));
+                formData.Add(new KeyValuePair<string, string>("answerContent1", field[3]));
+                formData.Add(new KeyValuePair<string, string>("answerContent2", field[4]));
+                formData.Add(new KeyValuePair<string, string>("answerContent3", field[5]));
+                formData.Add(new KeyValuePair<string, string>("answerContent4", field[6]));
+                formData.Add(new KeyValuePair<string, string>("idanswergood", field[2]));
 
                 string apiUri = API.API_URL+"chapters/name/"+field[1] + "/" + API.TOKEN;
 
@@ -163,7 +163,7 @@ public partial class Questions
                 }
 
                 var formContent = new FormUrlEncodedContent(formData);
-                apiUri = API.API_URL+"add/questions/"+API.TOKEN;
+                apiUri = API.API_URL+"add/question/"+API.TOKEN;
 
                 response = await Http.PostAsync(apiUri, formContent);