I'm trying to insert an image into a SQL Server database, it get into the dataset but when the save method is called, SQL Server doesn't change.
public void AddImage(OpenFileDialog openFileDialog1, List<Movie> movieList)
{
byte[] movieCover = null;
FileStream movieStream = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read);
BinaryReader movieReader = new BinaryReader(movieStream);
movieCover = movieReader.ReadBytes((int)movieStream.Length);
var Starwars = new object[2];
Starwars[0] = "Star Wars: Episode I - The Phantom Menace";
Starwars[1] = "1999";
var found = _movieSet.Tables["Movie"].Rows.Find(Starwars);
if (found != null)
{
found.SetField("Cover", movieCover);
var movieListFound = movieList.Find(x => x.Name == Starwars[0]);
}
else
MessageBox.Show("Movie Not Found");
}
The save method
public void Save()
{
var movieConnection = new SqlConnection();
try
{
movieConnection = new SqlConnection(Properties.Settings.Default.moviesConnectionString);
movieConnection.Open();
_movieAdapter.Update(_movieSet, "Movie");
movieConnection.Close();
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
finally
{
movieConnection.Dispose();
}
}
Adding new rows works but any sort of change to the actual data set is not updated when the save method is called, not just image but if I change the table data with data visualizer in debugging.
Yet again I answer my own question a day later, wish I got better responses but I suppose my information must not be the best or something.
I needed to call the Save() method during the Addimage method.
public void AddImage(OpenFileDialog openFileDialog1, List<Movie> movieList)
{
byte[] movieCover = null;
FileStream movieStream = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read);
BinaryReader movieReader = new BinaryReader(movieStream);
movieCover = movieReader.ReadBytes((int)movieStream.Length);
var Starwars = new object[2];
Starwars[0] = "Star Wars: Episode I - The Phantom Menace";
Starwars[1] = 1999;
var found = MovieTable().Rows.Find(Starwars);
if (found != null)
{
found["Cover"] = movieCover;
var movieListFound = movieList.Find(x => x.Name == Starwars[0]);
}
else
MessageBox.Show("Movie Not Found");
Save();
}
Related
Hello All I am not able to upload multiple attachments with postman and I don't understand why
Here there is my Api in order to replace existing files
[HttpPost]
[Route("api/attachments/UpdateMultiple")]
public Result UpdateMultiple(List<int> id)
{
try
{
ATTACHMENT[] results = new ATTACHMENT[] { };
int position = 0;
foreach (int i in id)
{
var file = HttpContext.Current.Request.Files[position];
ATTACHMENT attachment = entities.ATTACHMENT.Where(a => a.IDATTACHMENT ==
i).FirstOrDefault();
byte[] fileBytes = new byte[] { };
using (var ms = new MemoryStream())
{
file.InputStream.CopyTo(ms);
fileBytes = ms.ToArray();
}
attachment.Binarydata= fileBytes;
attachment.TypeFILE = file.ContentType;
attachment.NAMEFILE = file.FileName;
entities.SaveChanges();
results[position] = (attachment);
position++;
}
return new Result("OK", results );
}
catch (Exception e)
{
return new Result("KO", + e);
}
}
Here Postman:
Any Suggestion? I have no Idea what to do
Try adding FromQueryAttribute/FromUriAttribute (depending on the ASP.NET version) to parameter:
public Result UpdateMultiple([FromQuery] List<int> id)
Or
public Result UpdateMultiple([FromUri] List<int> id)
UPD
ATTACHMENT[] results = new ATTACHMENT[] { }; creates an empty array, so accessing it by any index will throw an exception, change it to var results = new ATTACHMENT[id.Count];
Solved it with help of Guru Stron -thank you!
to fix, I had to add/modify:
public Result UpdateMultiple([FromUri] List<int> id){
List<ATTACHMENT> results = new List<ATTACHMENT>();
int pos = 0;
foreach (int i in id)
{
var file = HttpContext.Current.Request.Files[pos];
pos++;
[...]
results.Add(attachment);
[...]
}
}
Now I have successfully working code (with multiple threads) for items bulk import in IN202500 screen in Acumatica.
The problem is that I am struggling to import an image of an item and actually I don't have an image by itself but only URL link to this image.
So, my question is has anyone done this in c#?
This is my piece of code.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ItemImportMultiThreaded
{
public class ItemImporter
{
private IN202500.Screen _itemsScreen;
private static object _itemsSchemaLock = new object();
private static IN202500.Content _itemsSchema;
public void Login(string url, string username, string password, string company)
{
Console.WriteLine("[{0}] Logging in to {1}...", System.Threading.Thread.CurrentThread.ManagedThreadId, url);
_itemsScreen = new IN202500.Screen();
_itemsScreen.Url = url + "/PMSDB/(W(2))/Soap/IN202500.asmx";
_itemsScreen.EnableDecompression = true;
_itemsScreen.CookieContainer = new System.Net.CookieContainer();
_itemsScreen.Timeout = 36000;
_itemsScreen.Login(username, password);
Console.WriteLine("[{0}] Logged in to {1}.", System.Threading.Thread.CurrentThread.ManagedThreadId, url);
lock (_itemsSchemaLock)
{
// Threads can share the same schema.
if (_itemsSchema == null)
{
Console.WriteLine("[{0}] Retrieving IN202500 schema...", System.Threading.Thread.CurrentThread.ManagedThreadId);
_itemsSchema = _itemsScreen.GetSchema();
if (_itemsSchema == null) throw new Exception("IN202500 GetSchema returned null. See AC-73433.");
}
}
}
public void Logout()
{
_itemsScreen.Logout();
}
public void Import(List<Item> items)
{
Console.WriteLine("[{0}] Submitting {1} items to Acumatica...", System.Threading.Thread.CurrentThread.ManagedThreadId, items.Count);
var commands = new IN202500.Command[]
{
_itemsSchema.StockItemSummary.InventoryID,
_itemsSchema.StockItemSummary.Description,
_itemsSchema.GeneralSettingsItemDefaults.ItemClass,
_itemsSchema.VendorDetails.VendorID,
_itemsSchema.VendorDetails.VendorInventoryID,
_itemsSchema.VendorDetails.ServiceCommands.NewRow,
_itemsSchema.VendorDetails.VendorID,
_itemsSchema.VendorDetails.VendorInventoryID,
_itemsSchema.VendorDetails.ServiceCommands.NewRow,
_itemsSchema.VendorDetails.VendorID,
_itemsSchema.VendorDetails.VendorInventoryID,
_itemsSchema.CrossReference.AlternateID,
_itemsSchema.CrossReference.Description,
_itemsSchema.Actions.Save
};
string[][] data = new string[items.Count][];
int count = 0;
foreach(Item item in items)
{
data[count] = new string[11];
data[count][0] = item.InventoryID;
data[count][1] = item.Description.Trim();
data[count][2] = item.ItemClassID;
data[count][3] = item.DigiKey;
data[count][4] = item.DKPN;
data[count][5] = item.Mouser;
data[count][6] = item.MouserID;
data[count][7] = item.Element14;
data[count][8] = item.Element14ID;
data[count][9] = item.AlternateID;
data[count][10] = item.Descr;
count++;
}
_itemsScreen.Import(commands, null, data, false, true, true);
Console.WriteLine("[{0}] Submitted {1} items to Acumatica.", System.Threading.Thread.CurrentThread.ManagedThreadId, items.Count);
}
}
}
I tried to use FileStream but that didn't work.
If by URL link you mean an external http resource, you can download the image and upload it.
The StockItems image field cycle through all the images contained in the Files popup in the order they are displayed:
I uploaded the images from a static external Url using the following code:
const string imageUrl = "https://cdn.acumatica.com/media/2016/03/software-technology-industries-small.jpg";
string path = Path.Combine(Path.GetTempPath(), Path.ChangeExtension(Path.GetTempFileName(), ".jpg"));
// Download Image
using (WebClient client = new WebClient())
{
client.DownloadFile(new Uri(imageUrl), path);
}
// ReadUploadFile function below
byte[] data = ReadUploadFile(path);
_itemsScreen.Import(new IN202500.Command[]
{
// Get Inventory Item
new Value
{
Value = "D1",
LinkedCommand = _itemsSchema.StockItemSummary.InventoryID,
},
_itemsSchema.Actions.Save,
// Upload Inventory Item Image
new Value
{
FieldName = Path.GetFileName(path),
LinkedCommand = _itemsSchema.StockItemSummary.ServiceCommands.Attachment
},
_itemsSchema.Actions.Save
},
null,
new string[][]
{
new string[]
{
// Image data
Convert.ToBase64String(data)
}
},
false,
false,
true);
public byte[] ReadUploadFile(string filePath)
{
byte[] filedata;
using (FileStream file = File.Open(filePath,
FileMode.Open,
FileAccess.ReadWrite,
FileShare.ReadWrite))
{
filedata = new byte[file.Length];
file.Read(filedata, 0, filedata.Length);
}
if (filedata == null || filedata.Length == 0)
{
throw new Exception(string.Concat("Invalid or empty file: ", filePath));
}
return filedata;
}
You can try using the below, Tested Code.
var content = _context.CR306000GetSchema(); _context.CR306000Clear();
var commands = new List();
ReqParameter(content, ref commands);
commands.Add(content.Actions.Save);
commands.Add(content.CaseSummary.CaseID);
var orderResults = _context.CR306000Submit(commands.ToArray());
private static void ReqParameter(CR306000Content content, ref List cmds) { if (cmds == null) throw new ArgumentNullException("cmds");
private static void ReqParameter(CR306000Content content, ref List<Command> cmds)
{
if (cmds == null) throw new ArgumentNullException("cmds");
byte[] filedata= null;
Uri uri = new Uri("https://cdn.acumatica.com/media/2016/03/software-technology-industries-small.jpg"); // change the required url of the data that has to be fetched
if (uri.IsFile)
{
string filename = System.IO.Path.GetFileName(uri.LocalPath);
filedata = System.Text.Encoding.UTF8.GetBytes(uri.LocalPath);
}
if (filedata == null)
{
WebClient wc = new WebClient();
filedata = wc.DownloadData(uri);
}
cmds = new List<Command>
{
//Case Header Details
new Value { Value="<NEW>",LinkedCommand = content.CaseSummary.CaseID},
new Value { Value="L41",LinkedCommand = content.CaseSummary.ClassID},
new Value { Value="ABCSTUDIOS",LinkedCommand = content.CaseSummary.BusinessAccount, Commit = true},
new Value { Value="Test subject created from envelop call 11C",LinkedCommand = content.CaseSummary.Subject},
// body of the case
new Value{Value= "Body of the content for created through envelop call 11B", LinkedCommand = content.Details.Description},
//Attaching a file
new Value
{
Value = Convert.ToBase64String(filedata), // byte data that is passed to through envelop
FieldName = "Test.jpg",
LinkedCommand =
content.CaseSummary.ServiceCommands.Attachment
},
};
}
Let me know if this works for you.
Thanks
My Requirement: Apply fillers via c# coding(Not Design) ie, filterer salaries greater than 7000.
I have a class library and a web form in my project.
I am creating the report on class library and display report by using web form.
When I run my application it shows always the unfiltered data.
What i do to get Filtered data in Viewer.
Code:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Telerik.Reporting.Filter f1 = new Telerik.Reporting.Filter();
f1.Expression = "= Fields.Salary";
f1.Operator = Telerik.Reporting.FilterOperator.GreaterOrEqual;
f1.Value = "=7000";
EmpReport objEmpReport = new EmpReport(); objEmpReport.Filters.Add(f1);
TypeReportSource rptSource = new TypeReportSource(); rptSource.TypeName = typeof(EmpReport).AssemblyQualifiedName; this.ReportViewer1.ReportSource = rptSource;
}
}
working code:
// ...
using Telerik.Reporting;
using Telerik.Reporting.Processing;
// ...
void ExportToPDF(string reportToExport)
{
// all my reports are in trdx format - detect file type and use unpackage below for trdp files.
string currPath = HttpRuntime.AppDomainAppPath; // get the full path so deserialise works
reportToExport = currPath + #"Reports\" + reportToExport; // add folder and report name to path
UriReportSource uriReportSource = new UriReportSource { Uri = reportToExport }; // compressed to 1 line for brevity
Telerik.Reporting.Report myReport = DeserializeReport(uriReportSource); // extract report from xml format (trdx)
// Filters are client side (use params for server side) Here we work with the report object.
// set meaningful field name and values for your code, maybe even pass in as params to this function...
myReport.Filters.Add("UserId", FilterOperator.Equal , "1231");
var instanceReportSource = new Telerik.Reporting.InstanceReportSource(); // report source
instanceReportSource.ReportDocument = myReport; // Assigning Report object to the InstanceReportSource
// kinda optional, lots of examples just used null instead for deviceInfo
System.Collections.Hashtable deviceInfo = new System.Collections.Hashtable(); // set any deviceInfo settings if necessary
ReportProcessor reportProcessor = new ReportProcessor(); // will do work
RenderingResult result = reportProcessor.RenderReport("PDF", instanceReportSource, deviceInfo); // GO!
if (!result.HasErrors)
{
this.Response.Clear();
this.Response.ContentType = result.MimeType;
this.Response.Cache.SetCacheability(HttpCacheability.Private);
this.Response.Expires = -1;
this.Response.Buffer = true;
this.Response.BinaryWrite(result.DocumentBytes);
this.Response.End();
}
else
{
Exception[] ex = result.Errors;
throw new Exception(ex[0].Message);
}
}
Telerik.Reporting.Report DeserializeReport(UriReportSource uriReportSource)
{
var settings = new System.Xml.XmlReaderSettings();
settings.IgnoreWhitespace = true;
using (var xmlReader = System.Xml.XmlReader.Create(uriReportSource.Uri, settings))
{
var xmlSerializer = new Telerik.Reporting.XmlSerialization.ReportXmlSerializer();
var report = (Telerik.Reporting.Report)xmlSerializer.Deserialize(xmlReader);
return report;
}
}
Telerik.Reporting.Report UnpackageReport(UriReportSource uriReportSource)
{
var reportPackager = new ReportPackager();
using (var sourceStream = System.IO.File.OpenRead(uriReportSource.Uri))
{
var report = (Telerik.Reporting.Report)reportPackager.UnpackageDocument(sourceStream);
return report;
}
}
I am trying to fill a word document with data from an XML. I am using openXML to fill the document, which works great and save it as .docx. The thing is I have to open Word and save the document as an .odt and then use the OpenOffice SDK to open the .docx and save it as a pdf. When I don't save the .docx as .odt, the formatting is off.
What I need to be able to do is be able to either convert the .docx to .odt or save it originally as .odt.
Here is what I have right now:
static void Main()
{
string documentText;
XmlDocument xmlDoc = new XmlDocument(); // Create an XML document object
xmlDoc.Load("C:\\Cache\\MMcache.xml"); // Load the XML document from the specified file
XmlNodeList PatientFirst = xmlDoc.GetElementsByTagName("PatientFirst");
XmlNodeList PatientSignatureImg = xmlDoc.GetElementsByTagName("PatientSignatureImg");
byte[] byteArray = File.ReadAllBytes("C:\\Cache\\TransportationRunReporttemplate.docx");
using (MemoryStream stream = new MemoryStream())
{
stream.Write(byteArray, 0, (int)byteArray.Length);
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(stream, true))
{
using (StreamReader reader = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
{
documentText = reader.ReadToEnd();
}
using (StreamWriter writer = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.Create)))
{
writer.Write(documentText);
}
}
// Save the file with the new name
File.WriteAllBytes("C:\\Cache\\MYFINISHEDTEMPLATE.docx", stream.ToArray());
}
}
private static void AddPicture(Bitmap bitmap)
{
using (WordprocessingDocument doc = WordprocessingDocument.Open("C:\\Cache\\MYFINISHEDTEMPLATE.docx", true))
{
//Bitmap image = new Bitmap("C:\\Cache\\scribus.jpg");
SdtElement controlBlock = doc.MainDocumentPart.Document.Body
.Descendants<SdtElement>()
.Where
(r =>
r.SdtProperties.GetFirstChild<Tag>().Val == "Signature"
).SingleOrDefault();
// Find the Blip element of the content control.
A.Blip blip = controlBlock.Descendants<A.Blip>().FirstOrDefault();
ImagePart imagePart = doc.MainDocumentPart
.AddImagePart(ImagePartType.Jpeg);
using (MemoryStream stream = new MemoryStream())
{
bitmap.Save(stream, ImageFormat.Jpeg);
stream.Position = 0;
imagePart.FeedData(stream);
}
blip.Embed = doc.MainDocumentPart.GetIdOfPart(imagePart);
/* DW.Inline inline = controlBlock
.Descendants<DW.Inline>().FirstOrDefault();
// 9525 = pixels to points
inline.Extent.Cy = image.Size.Height * 9525;
inline.Extent.Cx = image.Size.Width * 9525;
PIC.Picture pic = inline
.Descendants<PIC.Picture>().FirstOrDefault();
pic.ShapeProperties.Transform2D.Extents.Cy
= image.Size.Height * 9525;
pic.ShapeProperties.Transform2D.Extents.Cx
= image.Size.Width * 9525;*/
}
ConvertToPDF(#"C:\Cache\MYFINISHEDTEMPLATE2.docx",#"C:\Cache\OpenPdf.pdf");
}
public static Bitmap Base64StringToBitmap(string base64String)
{
Bitmap bmpReturn = null;
byte[] byteBuffer = Convert.FromBase64String(base64String);
MemoryStream memoryStream = new MemoryStream(byteBuffer);
memoryStream.Position = 0;
bmpReturn = (Bitmap)Bitmap.FromStream(memoryStream);
memoryStream.Close();
memoryStream = null;
byteBuffer = null;
return bmpReturn;
}
public static void ConvertToPDF(string inputFile, string outputFile)
{
if (ConvertExtensionToFilterType(System.IO.Path.GetExtension(inputFile)) == null)
throw new InvalidProgramException("Unknown file type for OpenOffice. File = " + inputFile);
StartOpenOffice();
//Get a ComponentContext
var xLocalContext =
Bootstrap.bootstrap();
//Get MultiServiceFactory
var xRemoteFactory =
(XMultiServiceFactory)
xLocalContext.getServiceManager();
//Get a CompontLoader
var aLoader =
(XComponentLoader)xRemoteFactory.createInstance("com.sun.star.frame.Desktop");
//Load the sourcefile
XComponent xComponent = null;
try
{
xComponent = InitDocument(aLoader,
PathConverter(inputFile), "_blank");
//Wait for loading
while (xComponent == null)
{
Thread.Sleep(1000);
}
// save/export the document
SaveDocument(xComponent, inputFile, PathConverter(outputFile));
}
finally
{
if (xComponent != null) xComponent.dispose();
}
}
private static void StartOpenOffice()
{
var ps = Process.GetProcessesByName("soffice.exe");
if (ps.Length != 0)
throw new InvalidProgramException("OpenOffice not found. Is OpenOffice installed?");
if (ps.Length > 0)
return;
var p = new Process
{
StartInfo =
{
Arguments = "-headless -nofirststartwizard",
FileName = "soffice.exe",
CreateNoWindow = true
}
};
var result = p.Start();
if (result == false)
throw new InvalidProgramException("OpenOffice failed to start.");
}
private static XComponent InitDocument(XComponentLoader aLoader, string file, string target)
{
var openProps = new PropertyValue[1];
openProps[0] = new PropertyValue { Name = "Hidden", Value = new Any(true) };
XComponent xComponent = aLoader.loadComponentFromURL(
file, target, 0,
openProps);
return xComponent;
}
private static void SaveDocument(XComponent xComponent, string sourceFile, string destinationFile)
{
var propertyValues = new PropertyValue[2];
// Setting the flag for overwriting
propertyValues[1] = new PropertyValue { Name = "Overwrite", Value = new Any(true) };
//// Setting the filter name
propertyValues[0] = new PropertyValue
{
Name = "FilterName",
Value = new Any(ConvertExtensionToFilterType(System.IO.Path.GetExtension(sourceFile)))
};
((XStorable)xComponent).storeToURL(destinationFile, propertyValues);
}
private static string PathConverter(string file)
{
if (file == null || file.Length == 0)
throw new NullReferenceException("Null or empty path passed to OpenOffice");
return String.Format("file:///{0}", file.Replace(#"\", "/"));
}
public static string ConvertExtensionToFilterType(string extension)
{
switch (extension)
{
case ".odt":
case ".doc":
case ".docx":
case ".txt":
case ".rtf":
case ".html":
case ".htm":
case ".xml":
case ".wps":
case ".wpd":
return "writer_pdf_Export";
case ".xls":
case ".xlsb":
case ".ods":
return "calc_pdf_Export";
case ".ppt":
case ".pptx":
case ".odp":
return "impress_pdf_Export";
default: return null;
}
}
}
}
Just for information I cannot use anything that uses Interop because word will not be installed the machine. I am using OpenXML and OpenOffice
This is what I would try (details below):
1) try Doc format instead of DocX
2) switch to Libre Office and try DocX again
2) use the odf-converter to get a better DocX -> ODT conversion.
More details...
There's something called the odf-conveter (opensource) that can convert DocX->ODT which gives you (typically) more accurate DocX->ODT than Open Office. Take a look at odf-conveter-integrator by OONinja for pre-packaged versions.
Also, Libre Office has DocX support ahead of OpenOffice so you might get a better result simply by switching to Libre Office.
A further option is to start from Doc format rather than DocX. In the OpenOffice world that translates much better to ODT and then to PDF.
Hope that helps.
You may try to use Docxpresso to generate your .odt directly from HTML + CSS code and avoid any conversion issue.
Docxpresso is free for non-commercial use.
I'm having trouble figuring out how to determine if a number is duplicated.
Right now, the process is when the user clicks on a button to browse for an xml file, the xml file gets deserialized and stored into db and the data gets shown on a DataGrid on the view.
So, I added a confirmation dialog so when the user clicks on browse, the code checks to see if the lot_number being deserialized is a duplicate or not from inside a column from a table in database. I only want the user to be able to add lot numbers to db that are not duplicates.
Here's my code so far:
public void DeSerializationStream(string filePath)
{
XmlRootAttribute xRoot = new XmlRootAttribute();
xRoot.ElementName = "lot_information";
xRoot.IsNullable = false;
// Create an instance of lotinformation class.
var lot = new LotInformation();
// Create an instance of stream writer.
TextReader txtReader = new StreamReader(filePath);
// Create and instance of XmlSerializer class.
XmlSerializer xmlSerializer = new XmlSerializer(typeof(LotInformation), xRoot);
// DeSerialize from the StreamReader
lot = (LotInformation)xmlSerializer.Deserialize(txtReader);
// Close the stream reader
txtReader.Close();
}
public void ReadLot(LotInformation lot)
{
try
{
using (var db = new DDataContext())
{
var lotNumDb = db.LotInformation.FirstOrDefault(r => r.lot_number.Equals(r.lot_number));
if (lotNumDb != null || lotNumDb.lot_number.ToString().Equals(lot.lot_number))
{
confirmationWindow.Message = LanguageResources.Resource.Sample_Exists_Already;
dialogService.ShowDialog(LanguageResources.Resource.Error, confirmationWindow);
}
else {
Console.WriteLine("lot does not exist. yay");
}
DateTime ExpirationDate = lot.exp_date;
if (ExpirationDate != null)
{
if (DateTime.Compare(ExpirationDate, DateTime.Now) > 0)
{
try
{
LotInformation lotInfo = db.LotInformation.FirstOrDefault(r => r.lot_number.Equals(lotNumber));
}
catch (InvalidOperationException e)
{
//TODO: Add a Dialog Here
}
}
else
{
Console.WriteLine(ExpirationDate);
errorWindow.Message = LanguageResources.Resource.Lot_Expired;
dialogService.ShowDialog(LanguageResources.Resource.Error, errorWindow);
}
}
else
{
errorWindow.Message = LanguageResources.Resource.Lot_Not_In_Database;
dialogService.ShowDialog(LanguageResources.Resource.Error, errorWindow);
}
}
}
catch
{
errorWindow.Message = LanguageResources.Resource.Database_Error;
dialogService.ShowDialog(LanguageResources.Resource.Error, errorWindow);
logger.writeErrLog(LanguageResources.Resource.Database_Error);
}
}
I think I'm just having problems with when to grab the lot_number in this process.
This part below gives me problems. It keeps showing the Sample Exists already message for unique lot numbers that I'm uploading and I'm not sure why. I think it's a problem with my LINQ query but I'm not sure how to fix it. Any ideas?
var lotNumDb = db.LotInformation.FirstOrDefault(r => r.lot_number.Equals(r.lot_number));
if (lotNumDb != null || lotNumDb.lot_number.ToString().Equals(lot.lot_number))
{
confirmationWindow.Message = LanguageResources.Resource.Sample_Exists_Already;
dialogService.ShowDialog(LanguageResources.Resource.Error, confirmationWindow);
}
else {
Console.WriteLine("lot does not exist. yay");
}
you can't use like this:
db.LotInformation.FirstOrDefault(r => r.lot_number.Equals(r.lot_number))
may be :
db.LotInformation.FirstOrDefault(r => r.lot_number.Equals(lot.lot_number))
or
db.LotInformation.FirstOrDefault(r => r.lot_number.Equals(a string))