Develop Reference

Open file directly from SharePoint path with CSOM

I have a SharePoint server and I want to open files directly from the Server with SharePoint CSOM.
User clicks button --> the file (Excel, Word, ...) opens at the client machine with the standard software.
Directly means, that if I change something to the file and click save, that the file is directly saved on the SharePoint server (or if I click e.g. 'Save as' in Excel the suggested path is 'https://sharpoint.url.com/folder').
Actually I have:
using Microsoft.SharePoint.Client;
var clientContext = new ClientContext("https://sharpoint.url.com");
string relativePath = "/folder/file.xls";
clientContext.Credentials = CredentialCache.DefaultCredentials;
var file = clientContext.Web.GetFileByServerRelativeUrl(relativePath);
clientContext.Load(file);
clientContext.ExecuteQuery();
What do I have to do now, if I want to open the file directly (no download)?

I assume you ask how to access the file's stream instead of downloading it to a local folder.
You can use the File.OpenBinaryDirect method to get access to its ETag and stream, eg :
using(var fileInfo=File.OpenBinaryDirect(clientContext,"/folder/file.xls"))
using(var reader=new StreamReader(fileInfo.Stream))
{
//Do whatever you want with the data
}
BTW you shouldn't use the old xls files. The format is deprecated for over 10 years. The current Excel format, xlsx, is a zipped package of XML files that's better supported by SharePoint itself, doesn't require Excel to generate or read.
For example, if you wanted to read cell values from an xlsx file, you could use the popular EPPlus library to read directly from the stream:
using(var fileInfo=File.OpenBinaryDirect(clientContext,"/folder/file.xlsx"))
using(var package=new ExcelPackage(fileInfo.Stream))
{
var sheet=package.Workbook.Worksheets[0];
var value=ws.Cells["A1"].Value;
//...
}
UPDATE
It seems the question isn't related to programming after all. All that's needed to save or open a SharePoint document is clicking on the document's link. What happens then depends on the Open Documents in Client Applications setting at the site and document library level.
This affects the headers the server sends to the browser when the user clicks on a document link. The browser may still refuse to open the registered application and display the Save dialog.
If that doesn't work, you should check why instead of writing code. It's probably a configuration error or a browser setting. Solving it is easier than creating workarounds, pushing them to all client machines. And then keeping track of all the patches, where they are deployed and deploying new ones.
Apart from that, the Office applications know about SharePoint and document libraries since 2003. They can browse them, display SharePoint properties for the document, show collaborators etc.
As I mentioned in the question comments, a lot of what people think as "SharePoint Developoment" is nothing more that configuration, administration and end user features.
MSDN docs don't help either - they actually cause harm by not covering SP administration or explaining the features and how they are used. You'll find that in Technet. For years, people created webparts in code to change how grids looked because MSDN didn't explain how eg the DataViewWebPart worked or how you could style a grid from the UI.
In general, the best place for such questions is http://sharepoint.stackexchange.com. For example, check “Open in the client application” Vs “Use the server default (Open in the client application)” inside the document library advance settings

We can create Map Network Drive for SharePoint library, and open the file from the network location. Check article below:
http://support.sherweb.com/Faqs/Show/how-to-connect-to-a-sharepoint-site-using-webdav-sharepoint-2013
Or we can download the file from SharePoint and open it using the code below:
Application.Workbooks.Open(#"C:\Test\YourWorkbook.xlsx");
Reference: https://msdn.microsoft.com/en-us/library/b3k79a5x.aspx

Open doc file with interop is null in IIS 8.0

I try open .doc file with interop, when I run in Visual studio result is a file but I publish web to IIS result is null.
I added folder Desktop to C:\Windows\SysWOW64\config\systemprofile, I run website, process Word run but still no return result.
I'm using Windows server 2012 64bit and Microsoft Office 2007. Why result in IIS return null and solution?
var wordApp = new Application { Visible = false };
var path = Request.PhysicalApplicationPath + "File\\TestFile.doc";
object srcPath = path;
var wordDoc = wordApp.Documents.Open(ref srcPath);

Refer Link
Sometimes with Office interop stuff it can be awkward.
If you use a single user to access the word application i.e. your asp.net service username.
Then what you can do is login to the computer using that username and open up word, this then adds all the registry and file system changes that the office applications seem to use. Note: if you are planning on using Excel as well then you need to open up excel also.
Another method is to create a new user account for accessing Word, then do the above and in your code behind impersonate that user so you're not giving the Web Application User access to word.
Hope this helps
p.s. When working with office interop it's important to watch for dirty references to objects. Leaving dirty references leaves ghost Word/Excel processes (visible only in task manager).
One thing I always do to help is to create a new AppDomain, this means there is no risk to the current process. Then I always release the objects as follows
if (item != null)
{
while (Marshal.ReleaseComObject(item) > 0);
item = null;
}
Where item is a document object, an application object etc. This code should go in a Finally block so that it always runs
Just in case you're new to office interop this one kept me busy for quite some time when I was just starting out.

Printing any file type

I'm creating a service that will monitor a specific folder and print any file that is put in this folder. I'm having difficulties with the various file types that could be sent to the folder to be printed.
My first attempt is with Microsoft Office files. What I'm trying to do is start the office to print the file. It's more like a catch, I'm not really using a library or anything like it.
So far this approach would work, but when no Office application has ever started on the machine the Office asks for the user initials. So, in this case my application would just not work, since I'm doing this programatically.
ProcessStartInfo info = new ProcessStartInfo(myDocumentsPath);
info.Verb = "Print";
info.CreateNoWindow = true;
info.WindowStyle = ProcessWindowStyle.Hidden;
Process.Start(info);
Right now I am trying with Microsoft Office files, but I will apply the same approach for other types as well.
There is anyway to get around the Initials required by the first Office run?
Or any better approach to my problem?
Any help is appreciated, thanks in advance.

There's not really anything that you can do; for the application which will print each type of file that you're going to support, you need to make sure the application is configured correctly.
This means that for office (since it is run as an out-of-process COM server) you should run it under the account that is performing the printing so you can enter the initials and won't be prompted for it when the server attempts to print it.
The same for every other application (assuming the application is executed to print it), it needs to be run as the account the process is going to be run under and configured correctly.

Use Winternals's regmon registry activity monitor to figure out where Office stores the initials in the windows registry, then write these keys prior to printing.

report export no work on user's pc

i created a application with function export report as pdf file, the application can download the report in web format.
i run the application in my pc, it is work, but i try run at user pc, but fail when exporting
Using _report
_report.Load(HttpContext.Current.Server.MapPath("Report/" & "report.rpt"))
_reportname = name & date.now
_report.ParameterFields("name").CurrentValues.Clear()
_report.ParameterFields("name").CurrentValues.AddValue(_name)
_report.SetDatabaseLogon(_gstrID, _gstrPassword, _gstrDataSource, _gstrCatalog)
_report.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, context.Response, True, _reportname)
_report.Export()
_report.Database.Dispose()
_report.Dispose()
any miss take in my code???

There are many things that could be happening here.
First, test it from a completely different computer that the two you have. Test it on the same computer with the problem using a different browser. Optionally, update your version of Adobe Reader on the misbehaving machine and try again.
Next, if you are using IIS 7.5 there is a hotfix concerning downloading PDF files ( http://support.microsoft.com/kb/979543 ) that impacts particular versions of the Adobe PDF Reader plug-in.

IIS Permissions for Saving Word Documents

Our ASP.NET/C# lets users edit and manage Word (OpenXML) documents that are hosted on a server. I am using client-side VBScript functions to handle some of the editing functions including saving the document to a folder on the server. For the save functionality, I am using the following function call :
Document.SaveAs "http://server/savefolder/savefile.docx"
I have given "Full Control" permissions on savefolder to both the NETWORK SERVICE and the IUSR_MACHINE users. Yet the above call fails. The error number returned is 5096. The error message is some gibberish that doesn't make any sense.
The server is Windows 2003 and the IIS version is 6.0. I have installed the OpenXML SDK 2.0 CTP on the server.
I can successfully read and print documents.
Does anyone tell me what I am doing wrong? or what additional settings need to be in place?
BTW, the error message ("gibberish" from my post) is:
"EOALPHABETICARABICARABICABJADARABICALPHABAHTTEXTCAPSCARDTEXTCHARFORMATCHI"
No, I am not making this up!

In my case, that error 5096 with description "EOALPHABETICARABICARABICABJADARABICALPHABAHTTEXTCAPSCARDTEXTCHARFORMATCHI"
occurred when using VBA code in Access to drive a Word mail-merge. The cause was trying to save a document with the same name (including path) as an open document.
Error line:
objApp.ActiveDocument.SaveAs saveAsName
where objApp is the object variable representing the Word application and saveAsName is the string variable storing the name I am trying to save the file as e.g. "C:\temp\testdoc.docx".
IF a file with the same name exists but is not open, the above code overwrites it silently.

Turns out WebDAV is not turned on by default in IIS 6.0. Once I turned it on, I was able to save the documents just fine.
Thanks for all your answers!

Just a guess... if the vbscript is running on the client, the code is probably running under the user's account, not under the server's IIS account. So unless you give write access to that user, vbscript probably won't work for this.
Since you're using ASP.NET, you could try writing a web service that takes in Word document data and saves it to the server for you.

I'd try running Fiddler on the client while trying to save the document to get a sense of what's really going on. I wonder if maybe it's trying to do an HTTP PUT (as opposed to a POST).

Have you given write access to the folder in IIS manager?

Is the save folder you're using outside of the websites root directory, i.e. 'hidden' from the internet?

Just to add to SI's information...
I also get this I get the 5096 - EOALPHABETICARABICARABICABJADARABICALPHABAHTTEXTCAPSCARDTEXTCHARFORMATCHI error when my code tries to save a MS Word document with the same name and to the same location as a Word document that is already open in another instance of Word.
Although not entirely relevant to this thread, I hope it may help someone else who stumbles upon this thread!
Regards,
Duane,

this question is old but still active ?
You save the file with a http://... url, i think you should save it with a file URL as
Document.SaveAs "\\server\savefolder\savefile.docx"
Grtz