After having a look around the web, I have found the following posts (below) which are quite similar to my problem. However, after trying the solutions, I am still stuck.
VSTO Frustration
Setting cached variables in VSTO 3.0
Basically, I want to populate some data in a Excel file on a web server before I send it to the client.
Here is my code in the Workbook:
namespace Inno.Data.Excel
{
public partial class ThisWorkbook
{
[Cached]
public DataSet Config = new DataSet();
private void ThisWorkbook_Startup(object sender, System.EventArgs e)
{
//InitializeCachedData();
var baseUrl = (string)Config.Tables["Config"].Rows[0].ItemArray[0];
var streamIds = (string)Config.Tables["Config"].Rows[0].ItemArray[1];
MessageBox.Show(baseUrl + " " + streamIds);
}
}
}
and on the server side I have the following:
let rootUrl = Uri(x.Request.Url.GetLeftPart(UriPartial.Authority))
let setUpData (report : Report) (sd : ServerDocument) =
let url = rootUrl.AbsoluteUri
let streamIds = String.Join(",", report.series |> Seq.map(fun s -> s.id))
let dt = new System.Data.DataTable("Config")
dt.Columns.Add("BaseUrl", typeof<String>) |> ignore
dt.Columns.Add("StreamIds", typeof<String>) |> ignore
dt.Rows.Add([|box url; box streamIds|]) |> ignore
dt.AcceptChanges()
let cache = sd.CachedData.HostItems.["Inno.Data.Excel.ThisWorkbook"]
let urlItem = cache.CachedData.["Config"]
urlItem.SerializeDataInstance(dt)
sd.Save()
sd.Close()
let initialiseDocument (report : Report) (path : string) =
let fileName = report.name.Replace(" ", "_") + ".xlsx"
let sd = (new ServerDocument(path))
sd |> setUpData report
fileName
let docPath = x.Request.MapPath(Path.Combine(liveReportPath, "Inno.Data.Excel.xlsx"))
let fileName = initialiseDocument report docPath
x.File(File.OpenRead(docPath), "application/vnd.ms-excel", fileName) :> ActionResult
However, when I go to open the file after it has downloaded, I get the following error:
Microsoft.VisualStudio.Tools.Applications.Runtime.CannotFindObjectToFillException: Cannot find any public instance member with ID Config in object Inno.Data.Excel.ThisWorkbook.
Things I have tried:-
Using a simple string rather than a DataSet
Calling StartCaching("Config")
Manipulating the ServerDocument in memory using the byte[] file overload
Copying the original Excel file and operating on the copy
But now I'm out of ideas. I see that a fair number of people have had this error, and as is pointed out in this post, there was a known bug in VSTO 3.0 with manipulating files in memory.
Thanks in advance.
Related
Please help me with the below issue.
I have to read data from excel .
I have created JSPDynpage component and followd below link :
http://help.sap.com/saphelp_sm40/helpdata/en/63/9c0e41a346ef6fe10000000a1550b0/frameset.htm below is my code. I am trying to read excel file using apache poi 3.2 API
try
{
FileUpload fu = (FileUpload)
this.getComponentByName("myfileupload");
// this is the temporary file
if (fu != null) {
// Output to the console to see size and UI.
System.out.println(fu.getSize());
System.out.println(fu.getUI());
// Get file parameters and write it to the console
IFileParam fileParam = fu.getFile();
System.out.println(fileParam);
// Get the temporary file name
File f = fileParam.getFile();
String fileName = fileParam.getFileName();
// Get the selected file name and write ti to the console
ivSelectedFileName = fu.getFile().getSelectedFileName();
File fp = new File(ivSelectedFileName);
myLoc.errorT("#fp#"+fp);
try {
//
**FileInputStream file = new FileInputStream(fp);** --> error at this line
HSSFWorkbook workbook = new HSSFWorkbook(file);
myLoc.errorT("#workbook#"+workbook);
//Get first sheet from the workbook
HSSFSheet sheet = workbook.getSheetAt(0);
myLoc.errorT("#sheet#"+sheet);
//
} catch(Exception ioe) {
myLoc.errorT("#getLocalizedMessage# " + ioe.getLocalizedMessage());
}
Error :
#getLocalizedMessage# C:\Documents and Settings\10608871\Desktop\test.xls (The system cannot find the path specified)
at line FileInputStream file = new FileInputStream(fp);
I have created the PAR file and deploying it on server.
Thanks in Advance,
Aliya Khan.
i resolved the problem, i was passing the worng parameter instead of f
FileInputStream file = new FileInputStream(f);
I am working on Adobe Echo sign,I have downloaded the sample code from their website, I am using this sample code for sendingdocument, it has some code missing in sendDocument method so I have changed it. It's giving SoapHeader Exception,with nothing in InnerException,
{"apiActionId=XHZI4WF4BV693YS"}
below is my code of sending document
public static void sendDocument(string apiKey, string fileName, string recipient)
{
ES = new EchoSignDocumentService16();
FileStream file = File.OpenRead(fileName);
secure.echosign.com.FileInfo[] fileInfos = new secure.echosign.com.FileInfo[1];
fileInfos[0] = new secure.echosign.com.FileInfo(fileName, null, file);
SenderInfo senderInfo = null;
string[] recipients = new string[1];
recipients[0] = recipient;
DocumentCreationInfo documentInfo = new DocumentCreationInfo(
recipients,
"Test from SOAP: " + fileName,
"This is neat.",
fileInfos,
SignatureType.ESIGN,
SignatureFlow.SENDER_SIGNATURE_NOT_REQUIRED
);
DocumentKey[] documentKeys;
senderInfo = new SenderInfo(recipient, "password", "APIKEY");
documentKeys = ES.sendDocument(apiKey, senderInfo, documentInfo);
Console.WriteLine("Document key is: " + documentKeys[0].documentKey);
}
its giving exception on this line
documentKeys = ES.sendDocument(apiKey, senderInfo, documentInfo);
Can anyone suggest some sample code of Adobe Echo Sign?
On the account page of your login there is an API log you can check. If you check the log entry for your request you may find more information there.
I can't see anything immediately wrong with your code however the EchoSign API guide says that the 'tos' field is deprecated and that the recipients field should be used instead. Helpfully this means you can't use the paramaterised constructor. Try creating your document creation info as such (this is C# but if you need Java it should be straightforward to figure out):
RecipientInfo[] recipientInfo = new RecipientInfo[1];
recipientInfo[0] = new RecipientInfo
{
email = "recipient",
role = RecipientRole.SIGNER,
roleSpecified = true
};
DocumentCreationInfo documentCreationInfo = new DocumentCreationInfo
{
recipients = recipientInfo,
name = "Test from SOAP: " + fileName,
message = "This is neat.",
fileInfos = fileInfos,
signatureType = SignatureType.ESIGN,
signatureFlow = SignatureFlow.SENDER_SIGNATURE_NOT_REQUIRED
};
Note that when using the recipientInfo array it seems that the roleSpecified field must be set to true. This little field tripped me up for ages and I was receiving errors similar to yours.
activeDocument.fitArtboardToSelectedArt()
When calling this command, AI crashes on AI 5.1/6 32bit and 64bit versions. I can use the command from the menu. Has anyone encountered this? does anyone know of a work around?
The full code.
function exportFileToJPEG (dest) {
if ( app.documents.length > 0 ) {
activeDocument.selectObjectsOnActiveArtboard()
activeDocument.fitArtboardToSelectedArt()//crashes here
activeDocument.rearrangeArtboards()
var exportOptions = new ExportOptionsJPEG();
var type = ExportType.JPEG;
var fileSpec = new File(dest);
exportOptions.antiAliasing = true;
exportOptions.qualitySetting = 70;
app.activeDocument.exportFile( fileSpec, type, exportOptions );
}
}
var file_name = 'some eps file.eps'
var eps_file = File(file_name)
var fileRef = eps_file;
if (fileRef != null) {
var optRef = new OpenOptions();
optRef.updateLegacyText = true;
var docRef = open(fileRef, DocumentColorSpace.RGB, optRef);
}
exportFileToJPEG ("output_file.jpg")
I can reproduce the bug with AI CS5.
It seems that fitArtboardToSelectedArt() takes the index of an artboard as an optional parameter. When the parameter is set, Illustrator doesn't crash. (probably a bug in the code handling the situation of no parameter passed)
As a workaround you could use:
activeDocument.fitArtboardToSelectedArt(
activeDocument.artboards.getActiveArtboardIndex()
);
to pass the index of the active artboard with to the function. Hope this works for you too.
Also it's good practice to never omit the semicolon at the end of a statement.
I want to test if a zip has a particular password in vb.net. How can I create a function like check_if_zip_pass(file, pass) As Boolean?
I can't seem to find anything in the .net framework that does this already, unless I'm missing something incredibly obvious.
This method should NOT extract the files, only return True if the attempted pass is valid and False if not.
Use a 3rd party library, like DotNetZip. Keep in mind that passwords in zipfiles are applied to entries, not to the entire zip file. So your test doesn't quite make sense.
One reason WinZip may refuse to unpack the zipfile is that the very first entry is protected with a password. It could be the case that only some entries are protected by password, and some are not. It could be that different passwords are used on different entries. You'll have to decide what you want to do about these possibilities.
One option is to suppose that only one password is used on any entries in the zipfile that are encrypted. (This is not required by the zip specification) In that case, below is some sample code to check the password. There is no way to check a password without doing the decryption. So this code decrypts and extracts into Stream.Null.
public bool CheckZipPassword(string filename, string password)
{
bool success = false;
try
{
using (ZipFile zip1 = ZipFile.Read(filename))
{
var bitBucket = System.IO.Stream.Null;
foreach (var e in zip1)
{
if (!e.IsDirectory && e.UsesEncryption)
{
e.ExtractWithPassword(bitBucket, password);
}
}
}
success = true;
}
catch(Ionic.Zip.BadPasswordException) { }
return success;
}
Whoops! I think in C#. In VB.NET this would be:
Public Function CheckZipPassword(filename As String, password As String) As System.Boolean
Dim success As System.Boolean = False
Try
Using zip1 As ZipFile = ZipFile.Read(filename)
Dim bitBucket As System.IO.Stream = System.IO.Stream.Null
Dim e As ZipEntry
For Each e in zip1
If (Not e.IsDirectory) And e.UsesEncryption Then
e.ExtractWithPassword(bitBucket, password)
End If
Next
End Using
success = True
Catch ex As Ionic.Zip.BadPasswordException
End Try
Return success
End Function
I use SharpZipLib in .NET to do this, here is a link to their wiki with a helper function for unzipping password protected zip files. Below is a copy of the helper function for VB.NET.
Imports ICSharpCode.SharpZipLib.Core
Imports ICSharpCode.SharpZipLib.Zip
Public Sub ExtractZipFile(archiveFilenameIn As String, password As String, outFolder As String)
Dim zf As ZipFile = Nothing
Try
Dim fs As FileStream = File.OpenRead(archiveFilenameIn)
zf = New ZipFile(fs)
If Not [String].IsNullOrEmpty(password) Then ' AES encrypted entries are handled automatically
zf.Password = password
End If
For Each zipEntry As ZipEntry In zf
If Not zipEntry.IsFile Then ' Ignore directories
Continue For
End If
Dim entryFileName As [String] = zipEntry.Name
' to remove the folder from the entry:- entryFileName = Path.GetFileName(entryFileName);
' Optionally match entrynames against a selection list here to skip as desired.
' The unpacked length is available in the zipEntry.Size property.
Dim buffer As Byte() = New Byte(4095) {} ' 4K is optimum
Dim zipStream As Stream = zf.GetInputStream(zipEntry)
' Manipulate the output filename here as desired.
Dim fullZipToPath As [String] = Path.Combine(outFolder, entryFileName)
Dim directoryName As String = Path.GetDirectoryName(fullZipToPath)
If directoryName.Length > 0 Then
Directory.CreateDirectory(directoryName)
End If
' Unzip file in buffered chunks. This is just as fast as unpacking to a buffer the full size
' of the file, but does not waste memory.
' The "Using" will close the stream even if an exception occurs.
Using streamWriter As FileStream = File.Create(fullZipToPath)
StreamUtils.Copy(zipStream, streamWriter, buffer)
End Using
Next
Finally
If zf IsNot Nothing Then
zf.IsStreamOwner = True ' Makes close also shut the underlying stream
' Ensure we release resources
zf.Close()
End If
End Try
End Sub
To test, you could create a file compare that looks at the file before it's zipped and again after it has been unzipped (size, date, etc...). You could even compare the contents if you wanted to use a simple test file, like a file with the text "TEST" inside. Lots of choices, depends on how much and how far you want to test.
There's not much built into the framework for doing this. Here's a big sloppy mess you could try using the SharpZipLib library:
public static bool CheckIfCorrectZipPassword(string fileName, string tempDirectory, string password)
{
byte[] buffer= new byte[2048];
int n;
bool isValid = true;
using (var raw = File.Open(fileName, FileMode.Open, FileAccess.Read))
{
using (var input = new ZipInputStream(raw))
{
ZipEntry e;
while ((e = input.GetNextEntry()) != null)
{
input.Password = password;
if (e.IsDirectory) continue;
string outputPath = Path.Combine(tempDirectory, e.FileName);
try
{
using (var output = File.Open(outputPath, FileMode.Create, FileAccess.ReadWrite))
{
while ((n = input.Read(buffer, 0, buffer.Length)) > 0)
{
output.Write(buffer, 0, n);
}
}
}
catch (ZipException ze)
{
if (ze.Message == "Invalid Password")
{
isValid = false;
}
}
finally
{
if (File.Exists(outputPath))
{
// careful, this can throw exceptions
File.Delete(outputPath);
}
}
if (!isValid)
{
break;
}
}
}
}
return isValid;
}
Apologies for the C#; should be fairly straightforward to convert to VB.NET.
I am trying to upload a file via a form and then save in in SQL as a blob.
I already have my form working fine, my database is fully able to take the blob and I have a controller that take the file, saves it in a local directory:
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult FileUpload(int id, HttpPostedFileBase uploadFile)
{
//allowed types
string typesNonFormatted = "text/plain,application/msword,application/pdf,image/jpeg,image/png,image/gif";
string[] types = typesNonFormatted.Split(',');
//
//Starting security check
//checking file size
if (uploadFile.ContentLength == 0 && uploadFile.ContentLength > 10000000)
ViewData["StatusMsg"] = "Could not upload: File too big (max size 10mb) or error while transfering the file.";
//checking file type
else if(types.Contains(uploadFile.ContentType) == false)
ViewData["StatusMsg"] = "Could not upload: Illigal file type!<br/> Allowed types: images, Ms Word documents, PDF, plain text files.";
//Passed all security checks
else
{
string filePath = Path.Combine(HttpContext.Server.MapPath("../Uploads"),
Path.GetFileName(uploadFile.FileName)); //generating path
uploadFile.SaveAs(filePath); //saving file to final destination
ViewData["StatusMsg"] = "Uploaded: " + uploadFile.FileName + " (" + Convert.ToDecimal(uploadFile.ContentLength) / 1000 + " kb)";
//saving file to database
//
//MISSING
}
return View("FileUpload", null);
}
Now all I am missing is putting the file in the database. I could not find anything on the subject... I found some way to do it in a regular website but nothing in MVC2.
Any kind of help would be welcome!
Thank you.
This could help: http://byatool.com/mvc/asp-net-mvc-upload-image-to-database-and-show-image-dynamically-using-a-view/
Since you have HttpPostedFileBase in your controllers method, all you need to do is:
int length = uploadFile.ContentLength;
byte[] tempImage = new byte[length];
myDBObject.ContentType = uploadFile.ContentType;
uploadFile.InputStream.Read(tempImage, 0, length);
myDBObject.ActualImage = tempImage ;
HttpPostedFileBase has a InputStream property
Hope this helps.
Alright thanks to kheit, I finaly got it working. Here's the final solution, it might help someone out there.
This script method takes all the file from a directory and upload them to the database:
//upload all file from a directory to the database as blob
public void UploadFilesToDB(long UniqueId)
{
//directory path
string fileUnformatedPath = "../Uploads/" + UniqueId; //setting final path with unique id
//getting all files in directory ( if any)
string[] FileList = System.IO.Directory.GetFiles(HttpContext.Server.MapPath(fileUnformatedPath));
//for each file in direcotry
foreach (var file in FileList)
{
//extracting file from directory
System.IO.FileStream CurFile = System.IO.File.Open(file, System.IO.FileMode.Open);
long fileLenght = CurFile.Length;
//converting file to a byte array (byte[])
byte[] tempFile = new byte[fileLenght];
CurFile.Read(tempFile, 0, Convert.ToInt32(fileLenght));
//creating new attachment
IW_Attachment CurAttachment = new IW_Attachment();
CurAttachment.attachment_blob = tempFile; //setting actual file
string[] filedirlist = CurFile.Name.Split('\\');//setting file name
CurAttachment.attachment_name = filedirlist.ElementAt(filedirlist.Count() - 1);//setting file name
//uploadind attachment to database
SubmissionRepository.CreateAttachment(CurAttachment);
//deleting current file fromd directory
CurFile.Flush();
System.IO.File.Delete(file);
CurFile.Close();
}
//deleting directory , it should be empty by now
System.IO.Directory.Delete(HttpContext.Server.MapPath(fileUnformatedPath));
}
(By the way IW_Attachment is the name of one of my database table)