We Keep Coding

Could not load type 'SAS.LanguageServiceCarriageControl' from assembly

In addition to using the integration components of SAS Enterprise Edition, I am using parts of the following project I found on Github to connect with a SAS server. The goal here is to command the server to run programs on a schedule. However, the programs need to be modified each time, which is why I am attempting to trigger them to run in this manner. However, it keeps throwing an error at lang.FlushLogLines.
https://github.com/cjdinger/SasHarness
SAS.Workspace ws = server.Workspace;
List<string> results = new List<string>();
Array CCs;
Array lineTypes;
Array logLines;
int maxLines = 100;
SAS.LanguageService lang = (SAS.LanguageService)ws.LanguageService;
Array linesVar = (Array)new string[] { PROGRAM_TEXT };
lang.SubmitLines(ref linesVar);
//THROWS AN ERROR HERE
lang.FlushLogLines(maxLines, out CCs, out lineTypes, out logLines);
for (int i = 0; i < logLines.Length; i++)
{
results.Add((string)logLines.GetValue(i));
}
After a bit of research I found the following thread where it is recommended to make sure that all the required dlls are referenced in my project. The mystery here is that I do have them referenced, but the error still occurs.
http://blogs.sas.com/content/sasdummy/2013/06/09/sas-client-with-microsoft-dot-net/
Moreover, starting after the very first line, the code is no longer using SASHarness, but is using native SAS integration libraries only. The code above is also based on examples listed in the following documentation from SAS.
https://support.sas.com/documentation/cdl/en/itechwcdg/61500/PDF/default/itechwcdg.pdf (page 27-28)
Has anybody encountered an error similar to this, and if so, how did you correct it?

Strangely, fixing this error required declaring an instance for each of the assemblies that could not be loaded. I have no idea why this fixes the problem, but it works now.
SAS.Workspace ws = server.Workspace;
string wsId = ws.UniqueIdentifier;
List<string> results = new List<string>();
Array CCs;
Array lineTypes;
Array logLines;
int maxLines = 100;
SAS.LanguageService lang = (SAS.LanguageService) server.Workspace.LanguageService;
Array linesVar = (Array) new string[] { PROGRAM_TEXT };
lang.SubmitLines(ref linesVar);
//For some reason, these two declarations need to be here
SAS.LanguageServiceCarriageControl CarriageControl = new SAS.LanguageServiceCarriageControl();
SAS.LanguageServiceLineType LineType = new SAS.LanguageServiceLineType();
lang.FlushLogLines(maxLines, out CCs, out lineTypes, out logLines);
for (int i = 0; i < logLines.Length; i++)
{
results.Add((string) logLines.GetValue(i));
}

Using C#, how do I determine if an uploaded file has any accessible metadata/document properties?

Suppose I have a program which allows a user to upload any kind of file. Along with getting generic information such as file type and file size, I would like to attempt to grab any extra information (such as document properties like author, last revised, etc) that may be transported along with the document.
Since I don't have any knowledge about the incoming document/file ahead of time, I can't simply use classes that are specific to, say Microsoft Office docs. I need to do this generically and then construct a dynamic object or dictionary to hold any found key/value results.
Is this possible? If so, how? Any help is appreciated!

I found a few answers on StackOverflow for this, but none gave me a nice, clean dictionary of document properties. Here is what I finally came up with and it seems to be working nicely (you will need to reference "Microsoft Shell Controls and Automation" from the COM folder and add using Shell32; to your code:
public static Dictionary<string,string> GetDocumentMetadata(string fileName)
{
var properties = new Dictionary<string,string>();
var arrHeaders = new List<string>();
var shell = new Shell();
var objFolder = shell.NameSpace(HttpContext.Current.Server.MapPath("~/RawFiles"));
var file = objFolder.ParseName(fileName);
for (var i = 0; i < short.MaxValue; i++)
{
var header = objFolder.GetDetailsOf(null, i);
if (String.IsNullOrEmpty(header))
break;
arrHeaders.Add(header);
}
for (var i = 0; i < arrHeaders.Count; i++)
{
var value = objFolder.GetDetailsOf(file, i);
if (!String.IsNullOrEmpty(value))
{
properties.Add(arrHeaders[i], value);
}
}
return properties;
}

Is There a Settings Viewer/Manager for Windows 8 apps?

For testing my roaming and/or local settings, I'd like to be able to clear all the settings.
I could do it like so, I guess:
App.roamingSettings.Value["SomeVal"] = string.Empty;
App.roamingSettings.Value["SomeOtherVal"] = string.Empty;
App.roamingSettings.Value["YetAnotherVal"] = string.Empty;
...
etc.
...but I'd rather have some quicker, cleaner (no pun intended) way. Is there one?
Also, relatedly, it would be nice to have a "Settings Manager" utility for quickly verifying they are what you think they are, too. Does anybody know of one?
UPDATE
This is my attempt to "roll my own" based on the answer; so far, no go:
string roamingSettingPairs = string.Empty;
for (int i = 0; i < App.roamingSettings.Values.Count; i++)
{
// Print out whatever you want to verify that everything is as it should be
//string roamingSettingName = App.roamingSettings.Name[i].ToString();
//string roamingSettingValue = App.roamingSettings.Values[i].ToString();
Dictionary<string, object> roamingSettingVals = App.roamingSettings.Values;
string roamingSettingName = roamingSettingVals.Keys[i];
object roamingSettingObj = roamingSettingVals.Values[i];
//roamingSettingPairs = string.Format("{0}{1}={2}{3}", roamingSettingPairs, roamingSettingName,
// roamingSettingValue, Environment.NewLine);
}

You can delete all of your roaming settings using this code:
ApplicationData.Current.RoamingSettings.Values.Clear();
For a Settings Manager, I would probably just use a for loop like so:
for (int i = 0; i < ApplicationData.Current.RoamingSettings.Values.Count; i++)
{
// Print out whatever you want to verify that everything is as it should be
}

Creating statecharts in Visio using c#

Can anyone point me to an example of how to programatically create a statechart in visio?
I can create blank pages, drop shapes, open template etc, but when I try to add transitions it complains that the page is not the right type.
Can't find a sample anywhere.
Alternatively: I can save the user actions to create the chart as a macro. Can I run that programatically?
Thanks.
< edit >
Step away from the PC for 2 minutes and you realise you should have put the code snippet in the question and not try to put it in comments. Forest: meet trees...
Visio.Document umlStencil = visioApp.Documents.OpenEx(#"UMLSTA_M.vss", (short)VisOpenSaveArgs.visOpenDocked);
Visio.Page page = visioDoc.Pages.Add();
Visio.Shape s1 = page.Drop(umlStencil[#"State"], 5.0, 5.0);
Visio.Shape s2 = page.Drop(umlStencil[#"State"], 5.0, 5.0);
Visio.Shape transition = page.Drop(umlStencil[#"Transition"], 1.0, 1.0);
As you can see, pretty similar to the snippet in the answer below.
< / edit >

This is the code that I ran with Visual Studio 2010 against both Visio 2007 and Visio 2010.
var visioApp = new Visio.Application();
// Load the UML Statechart stencil (docked)
var stencil_open_flags = Visio.VisOpenSaveArgs.visOpenDocked;
var umlStencil = visioApp.Documents.OpenEx(#"UMLSTA_M.vss", (short)stencil_open_flags);
// create a new empty doc based on the UML Model Template
var doc = visioApp.Documents.AddEx("UMLMOD_U.VST", Visio.VisMeasurementSystem.visMSUS, 0, 0);
var page = doc.Pages.Add();
// Find and manually change the diagram's title
var watermark = page.Shapes["Watermark Title"];
var LockTextEdit_cell = watermark.CellsU["LockTextEdit"];
LockTextEdit_cell.FormulaForceU = "GUARD(0)";
watermark.Text = "MyTitle";
LockTextEdit_cell.FormulaForceU = "GUARD(1)";
// Find the masters we need
var state_master = umlStencil.Masters["State"];
var transition_master = umlStencil.Masters["Transition"];
// Drop the masters into the page
var s1 = page.Drop(state_master, 5.0, 5.0);
var s2 = page.Drop(state_master, 1.0, 1.0);
var transition = page.Drop(transition_master, 3.0, 3.0);

Taking input from a joystick with C# .NET

I searched around on Google for this, but the only things I came up with were outdated and did not work.
Does anyone have any information on how to get joystick data using C# .NET?

Since this was the top hit I got on google while researching joystick / gamepad input in C#, I thought I should post a response for others to see.
The easiest way I found was to use SharpDX and DirectInput. You can install it via NuGet (SharpDX.DirectInput)
After that, it's simply a matter of calling a few methods:
Sample code from SharpDX
static void Main()
{
// Initialize DirectInput
var directInput = new DirectInput();
// Find a Joystick Guid
var joystickGuid = Guid.Empty;
foreach (var deviceInstance in directInput.GetDevices(DeviceType.Gamepad,
DeviceEnumerationFlags.AllDevices))
joystickGuid = deviceInstance.InstanceGuid;
// If Gamepad not found, look for a Joystick
if (joystickGuid == Guid.Empty)
foreach (var deviceInstance in directInput.GetDevices(DeviceType.Joystick,
DeviceEnumerationFlags.AllDevices))
joystickGuid = deviceInstance.InstanceGuid;
// If Joystick not found, throws an error
if (joystickGuid == Guid.Empty)
{
Console.WriteLine("No joystick/Gamepad found.");
Console.ReadKey();
Environment.Exit(1);
}
// Instantiate the joystick
var joystick = new Joystick(directInput, joystickGuid);
Console.WriteLine("Found Joystick/Gamepad with GUID: {0}", joystickGuid);
// Query all suported ForceFeedback effects
var allEffects = joystick.GetEffects();
foreach (var effectInfo in allEffects)
Console.WriteLine("Effect available {0}", effectInfo.Name);
// Set BufferSize in order to use buffered data.
joystick.Properties.BufferSize = 128;
// Acquire the joystick
joystick.Acquire();
// Poll events from joystick
while (true)
{
joystick.Poll();
var datas = joystick.GetBufferedData();
foreach (var state in datas)
Console.WriteLine(state);
}
}
I hope this helps.
I even got this to work with a DualShock3 and the MotioninJoy drivers.

One: use SlimDX.
Two: it looks something like this (where GamepadDevice is my own wrapper, and the code is slimmed down to just the relevant parts).
Find the joystick / pad GUIDs:
public virtual IList<GamepadDevice> Available()
{
IList<GamepadDevice> result = new List<GamepadDevice>();
DirectInput dinput = new DirectInput();
foreach (DeviceInstance di in dinput.GetDevices(DeviceClass.GameController, DeviceEnumerationFlags.AttachedOnly))
{
GamepadDevice dev = new GamepadDevice();
dev.Guid = di.InstanceGuid;
dev.Name = di.InstanceName;
result.Add(dev);
}
return result;
}
Once the user has selected from the list, acquire the gamepad:
private void acquire(System.Windows.Forms.Form parent)
{
DirectInput dinput = new DirectInput();
pad = new Joystick(dinput, this.Device.Guid);
foreach (DeviceObjectInstance doi in pad.GetObjects(ObjectDeviceType.Axis))
{
pad.GetObjectPropertiesById((int)doi.ObjectType).SetRange(-5000, 5000);
}
pad.Properties.AxisMode = DeviceAxisMode.Absolute;
pad.SetCooperativeLevel(parent, (CooperativeLevel.Nonexclusive | CooperativeLevel.Background));
pad.Acquire();
}
Polling the pad looks like this:
JoystickState state = new JoystickState();
if (pad.Poll().IsFailure)
{
result.Disconnect = true;
return result;
}
if (pad.GetCurrentState(ref state).IsFailure)
{
result.Disconnect = true;
return result;
}
result.X = state.X / 5000.0f;
result.Y = state.Y / 5000.0f;
int ispressed = 0;
bool[] buttons = state.GetButtons();

The bad news is that Microsoft seems to stop supporting their NET libraries for DirectX and focus on XNA instead. I don't work in GameDev so I don't need to use XNA but you may try it if you developing computer games. The good news is that there are other approaches. One is SlimDX the new framework to help you to wok with DirectX from C#. The other way is to directly add references of "Microsoft.DirectX.dll" and "Microsoft.DirectX.DirectInput.dll" to your project. you can find them "..\Windows\Microsoft.NET\DirectX for Managed Code\". if you you are going to use last approach here is a link to codeproject where you can read how to work with a joystick.
EDIT:
If your application is based on NET version newer then 2.0 the application may hang on. To fix this problem change config file and add this:
<startup useLegacyV2RuntimeActivationPolicy="true">

Google led me here and while not a requirement of this question, OpenTK is a good option for Windows and Linux (under mono) support.
From the OpenTK docs, this code works on Raspberry Pi + Raspbian + Mono 3.12.0:
for (int i = 0; i < 4; i++)
{
var state = Joystick.GetState(i);
if (state.IsConnected)
{
float x = state.GetAxis(JoystickAxis.Axis0);
float y = state.GetAxis(JoystickAxis.Axis1);
// Print the current state of the joystick
Console.WriteLine(state);
}
}

This question is old, but it seems to be active even to this day, so I'm posting anyway.
If you need to get input from XInput only, take a look at XInputium. This is a .NET library that is specialized in XInput controllers. It is pretty straightforward, and has many code samples you can look at.