Develop Reference

How to handle the unit-test assembly load issue in C#

While loading assemblies from both x64/x86, I have got exception message as System.BadImageFormatException in my unit-test project.
Below is the code and screen shot of the exception I have got while debugging the test.
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Example_Addin;
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using Microsoft.Office.Interop.Visio;
using Visio = Microsoft.Office.Interop.Visio;
namespace exampleProject
{
[TestClass]
public class exampleUnitTest1
{
[TestMethod]
public void Test_example()
{
try
{
Example exm_obj = new Example();
string file_path = "test.json";
string template_file = "template.vssx";
double height = 0.5;
double width = 0.5;
db_obj.read_data_shape_creation(#file_path, 0.5, 0.5, "F06", #template_file, "testing");
}
catch (Exception)
{
System.Diagnostics.Debug.WriteLine("Exception occour");
}
}
}
Here, I want to unit test my code with assembly dependencies, but after setting the assembly, I get the above snapped exception and code execution is halted. 

This issue happen due to my target framework for unit-test and my core-project are not matching. When I have correct both case it is working.

What reference should I use for 'Data.ValueRange'?

I'm following a guide to write output data from Visual Studio into a google spreadsheet.
At the end of the guide there is a code block that I pasted inside my project:
using OpenQA.Selenium.Support.UI;
using System;
using NUnit.Framework;
using OpenQA.Selenium;
using System.Collections;
using System.Collections.Generic;
using Google.Apis.Sheets.v4;
using Google.Apis.Auth.OAuth2;
using System.IO;
using Google.Apis.Services;
using Newtonsoft.Json;
using WikipediaTests.Foundation_Class;
using System.Web;
using System.Data;
using Google.Apis.Sheets.v4.Data;
namespace AutomationProjects
{
[TestFixture]
public class TestClass : TestFoundation
{
public class SpreadSheetConnector
{
//Codeblock from guide pasted here!
}
[Test]
public void test1()
{
//Test case 1. Do XYZ...
}
}
}
In the code block included in the guide there is a section about creating a list and passing data into it:
// Pass in your data as a list of a list (2-D lists are equivalent to the 2-D spreadsheet structure)
public string UpdateData(List<IList<object>> data)
{
String range = "My Tab Name!A1:Y";
string valueInputOption = "USER_ENTERED";
// The new values to apply to the spreadsheet.
List<Data.ValueRange> updateData = new List<Data.ValueRange>();
var dataValueRange = new Data.ValueRange();
dataValueRange.Range = range;
dataValueRange.Values = data;
updateData.Add(dataValueRange);
Data.BatchUpdateValuesRequest requestBody = new Data.BatchUpdateValuesRequest();
requestBody.ValueInputOption = valueInputOption;
requestBody.Data = updateData;
var request = _sheetsService.Spreadsheets.Values.BatchUpdate(requestBody, _spreadsheetId);
Data.BatchUpdateValuesResponse response = request.Execute();
// Data.BatchUpdateValuesResponse response = await request.ExecuteAsync(); // For async
return JsonConvert.SerializeObject(response);
}
The problem is that I get an error for the 'Data.ValueRange' and the 'Data.BatchUpdateValuesRequest' :
CS0246 The type or namespace name 'Data' could not be found (are you missing a using directive or an assembly reference?)
I tried adding "System.Data" as a assembly reference to my project and then added it at the top (using). But it did not remove the error.
'Data.' seems to belong to "Google.Apis.Sheets.v4" but I have already added that reference as the guide instructed.
The only fix that gets rid of the error is adding Google.Apis.Sheets.v4 before every 'Data.' like this:
List<Google.Apis.Sheets.v4.Data.ValueRange>
But when I run my tests the output does not get exported to my spreadsheet. So I'm assuming this is not the correct solution. And also I'm assuming that the guide should have included this in the code block if it was necessary.
Could there be some other reference about 'Data' I need?

According to the documentation, the ValueRange Class depends of Sheets.v4.Data, so you should add:
using Google.Apis.Sheets.v4.Data;
Also, change:
List<Data.ValueRange> updateData = new List<Data.ValueRange>();
to:
List<ValueRange> updateData = new List<ValueRange>();

SQLite Xamarin.Forms PCL errors on Android

I am trying to build an sqlite database on xamarin(C#) in pcl project. I am following this tutorial. On the Android Implementation (Step5) i get these errors:
Error CS0104 'Environment' is an ambiguous reference between 'Android.OS.Environment' and 'System.Environment' AlarmSQLite.Android c:\users\thomas\source\repos\AlarmSQLite\AlarmSQLite\AlarmSQLite.Android\SQLite_Android.cs 30 Active
Error CS0234 The type or namespace name 'Net' does not exist in the namespace 'SQLite' (are you missing an assembly reference?) AlarmSQLite.Android c:\users\thomas\source\repos\AlarmSQLite\AlarmSQLite\AlarmSQLite.Android\SQLite_Android.cs 33 Active
I use VisualStudio2017. I tried to remove .Net and added System.Environment but i get more and new errors.
My code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using SQLite;
using Xamarin.Forms;
using AlarmSQLite.Droid;
using System.IO;
[assembly: Dependency(typeof(SQLite_Android))]
namespace AlarmSQLite.Droid
{
public class SQLite_Android : ISQLite
{
public SQLite_Android() { }
public SQLite.SQLiteConnection GetConnection()
{
var dbName = "AlarmDB.db3";
var documentsPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
var path = Path.Combine(documentsPath, dbName);
var platform = new SQLite.Net.Platform.XamarinAndroid.SQLitePlatformAndroid();
var connection = new SQLite.Net.SQLiteConnection(platform, path);
return connection;
}
}
}
Everything is the same with the tutorial. What am i doing wrong? Thank you!
New Errors:
Error CS0234 The type or namespace name 'Platform' does not exist in the namespace 'SQLite' (are you missing an assembly reference?) AlarmSQLite.Android C:\Users\Thomas\source\repos\AlarmSQLite\AlarmSQLite\AlarmSQLite.Android\SQLite_Android.cs 33 Active
Error CS0029 Cannot implicitly convert type 'SQLite.Net.SQLiteConnection' to 'SQLite.SQLiteConnection' AlarmSQLite.Android C:\Users\Thomas\source\repos\AlarmSQLite\AlarmSQLite\AlarmSQLite.Android\SQLite_Android.cs 36 Active

Error CS0104:
Environment comes from 'Android.OS.Environment' as well as 'System.Environment' so giving you and ambiguity issue. Just Prepend System to the Environment.
var documentsPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
Error CS0234: Seems like you haven't added SQLite-Async Nuget Package. You have to add this in your PCL as well as in Android project and build project again.
Error CS0234 & CS0029: Make sure you added following two nuget packages in android and pcl projects.
Then, instead of using Sqlite, try to use Sqlite.Net.
Your Final Code should Look :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Xamarin.Forms;
using AlarmSQLite.Droid;
using System.IO;
using SQLite.Net;
using SQLite.Net.Async;
[assembly: Dependency(typeof(SQLite_Android))]
namespace AlarmSQLite.Droid
{
public class SQLite_Android : ISQLite
{
public SQLite_Android() { }
public SQLiteConnection GetConnection()
{
var dbName = "AlarmDB.db3";
var documentsPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
var path = Path.Combine(documentsPath, dbName);
var platform = new SQLite.Net.Platform.XamarinAndroid.SQLitePlatformAndroid();
var connection = new SQLiteConnection(platform, path);
return connection;
}
}
}
Do not forget to adjust your interface for the same. It should be like:
SQLiteConnection GetConnection():
Note: You can omit Sqlite.Net.Async PCL reference if you don't need it.

What namespace do I need to import to get the RavenDB type 'IndexQuery'?

In this code, there is a red squiggly lines under IndexQuery, PatchRequest, and PatchCommandType, indicating that the proper namespace is not imported. What namespace do I need to import?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Raven.Client.Document;
...
documentStore.DatabaseCommands.UpdateByIndex("DataByColor",
new IndexQuery
{
Query = "Color:red"
}, new[]
{
new PatchReques
{
Type = PatchCommandType.Set,
Name = "Color",
Value = "Green"
}
},
allowStale: false);

using Raven.Abstractions.Data;
Is the solution.

Assuming you already referenced the assembly from your project, invoke the View / Object Browser, browse to the assembly's node and expand it. You'll see all the namespaces this assembly implements, and types under each of these namespaces.

Problem with interface in XNA game project

Here is a part mof my code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Content;
.
.
.
public virtual bool CheckCollision(ICollidable i_Source)
{
bool collided = false;
ICollidable2D source = i_Source as 2DICollidable;
if (source != null)
{
collided = source.Bounds.Intersects(this.Bounds);
}
return collided;
}
For some reason, there is an error about using ICollided2D.
Why does it don't recognize this kind of variable? Do I miss any "using" statment?

Either this is a typing mistake:
ICollidable2D source = i_Source as 2DICollidable;
Or you a missing an _ before 2DICollidable, so it becomes _2DICollidable as you can't start an identifier with a number.

2DICollidable
What is this? I dont think normal identifiers can start with number. Heck even SO code-highlighter shows it in red.