With the use of the Open XML SDK 2.0, I did preformed the Reflected Code of an Excel file.
Along with other things, the Excel file has some images in some of the cells. When I run the code that was generated, the file show the images just fine.
What I need to do is to programatically inject images in place of the
images that are there now. The thing is, I cannot find where the images are at in the code that was generated. How can I figure this out? Also what is the easiest way to replace those images with new ones programmatically?
You may want to take a look at a similar question about inserting images into Excel files with OpenXML SDK: C# & OpenXML: Insert an image into an excel document.
Basically, those files are created as separate document parts. The answer I linked to should show You how to insert a new image into a document, however, in order to substitute existing images with your custom ones, you could probably just modify the binary data of appropriate ImagePart (and some other associated properties).
If You need some help with the code performing this task, let me know.
Related
I require a simple but potentially complex solution that I can't seem to find code that translates from Android for my iOS version APP.
I simply need a imageview grid such as shown here from a single web directory: https://www.youtube.com/watch?v=fIX4SnBLaZg
I have a working version on Android but can't seem to figure it out on Objective C.
My working version uses JSON to find each file in the directory and associated text, then simply adds each entry to the grid. The iOS version doesn't need to be as complicated if anyone has any examples?
Would anyone have any examples/snippets/APIs of implementing something like this into iOS?
Or even a simplified version such as only images from a directory. Simply have the thread read an entire folder from URL, file by file, and populate it in imageview's. Then once a user clicks on an image, simply view it full screen?
For your requirement you can use collection view . Please follow the below tutorial
uicollectionview-basic-tutorial
And to get images of jpg stored in bundle under folder named Images
NSArray *imagesOfjpgType = [[NSBundle mainBundle]pathsForResourcesOfType:#"jpg"
inDirectory:#"Images"];
To customize the cell to your design Please use the below code
https://stackoverflow.com/a/16579595/1142743
Also Please find sample from above tutorial which has a label below the image
https://www.dropbox.com/s/1uymyrwtx2yn9fs/RecipePhoto.zip?dl=0
I am going to developing an application, which is an epub. I have PDF files. I need to make those files as reflowable content(epub)... Then only the PDF files will be viewable in mobiles, tablets... etc.. Please suggest the solutions to make reflowable contents from the PDF...
If you don't mind using an open source software, go with Sigil.
If you want to learn innards of how to create by hand, or some tool of your own, Follow this. (This is a one month course, So you will not get all the content in one day, though).
Create the folder structure.
In a folder of your choice, create the following: META-INF (folder), OEBPS (folder), mimetype ( a file with exactly same name ).
Put application/epub+zip in the file mimetype. No spaces no lines.
Convert your PDF to text format. In Adobe acrobat, you will have file > export> .
Read the content from PDF, you will find some conclusions of how you can split them in to chapters or sub reading topics. Split according to the understanding of the book, and make so many text files.
Make sub folder structure. Make Images, Text, Styles (folders) content.opf, toc.ncx (files) inside OEBPS folder.
Put all your split files in Text folder created in step 5.
put all images extracted in pdf in Images folder
Put any styles (not describing here,) in Styles folder.
In the META-INF folder created in step 1, create a file called container.xml and fill with the following: <?xml version="1.0"?><container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container"> <rootfiles> <rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/> </rootfiles></container>.
If you are able to do these many things sincerely, ping again, I would try to tell you what you should put in content.opf, and toc.ncx in created in step 5.
As an example, You can use some example from my site. Download from here and use them with caution. Do not distribute.
We're opening up a beta for our web based pdf reflow viewer at the beginning of 2015. Feel free to sign up to be part of our beta test. More info here:
http://flexpaper.devaldi.com/reflow-pdf-documents.jsp
Does anyone have some sample code demonstrating how to make a "file browser" view? I'd like to be able to navigate through directories and drill-down the sub-directories and see files located within the various folders. I want the user to be able to create new directories/files and even select an existing file. Is there sample code out there already available to do this?
I don't know about sample code, but this wouldn't be too complicated to achieve using NSFileManager and a UITableView.
You can obtain arrays of directory contents using the subpathsOfDirectoryAtPath:error and associated methods of a file manager. These arrays in turn can populate a UITableView. It would be fairly easy to put together a navigation controller that could display a series of table views showing a file hiearchy.
Bear in mind, however, that you'll only be able to access the directories inside your application sandbox, unless you're running on a jailbroken device.
The iOS programming guide says that
You should never present users with the list of files in this directory and ask them to decide what to do with those files. Instead, sort through the files programmatically and add files without prompting.
This is assuming you are trying to implement file browse feature for your documents directory.
I'm an author of FileExplorer which is a file browser for iOS and fulfills most of your requirements.
Here are some of the features of my control:
Possibility to choose files or/and directories if there is a need for that
Possiblity to remove files or/and directories if there is a need for that
Built-in search functionality
View Audio, Video, Image and PDF files.
Possibility to add support for any file type.
You can find my control here.
So this is another exporting to Excel question.
I have a page that has a table with formatting by stylesheet.
When I export the page by setting the ContentType to application/excel and Content-Disposition to attachment, I can export the table to Excel (not CSV). However, it loses all formatting. I think it's because Excel does not load CSS and I guess that's reasonable.
So, in a scenario where I have to show the table on the web and also export to Excel, both with similar (even if not exact) formatting, what would be the best approach without using something like NPOI?
I am trying to minimize the work and keep the single template if possible. Is it necessary for me to create two separate templates: one with stylesheet, the other with embedded style in the table itself for Excel?
Having a single template with conditional formatting inside would be very messy.
Any ideas?
If you not yet solve the problem I'll recommend you to use Open XML SDK 2.0 for Microsoft Office (see http://www.microsoft.com/downloads/details.aspx?FamilyID=c6e744e5-36e9-45f5-8d8c-331df206e0d0&displaylang=en). With this way you will be able create an XLSX file without installing Excel on the server. XLSX file is compressed (like ZIP file) collection of xml files. Open XML SDK 2.0 helps you create and change XLSX file as pure xml files. At the first time if you look at Open XML SDK a lot of things look like strange, but it's only at the beginning. There are so named "Open XML SDK 2.0 Productivity Tool" (a part of Open XML SDK 2.0) which can generate a lot of useful code for you. Moreover you can create a nice Excel document which you can use as a prototype (template) of the document which you will create. So you can solve the problem of complex formating without writing of a lot of code.
Look at http://msdn.microsoft.com/en-us/library/cc850837(v=office.14).aspx for some examples and on http://openxmldeveloper.org/default.aspx. See also Creating Excel document with OpenXml sdk 2.0 as a start example. You can find also a lot of good stuffs on http://www.codeplex.com about Open XML SDK
there are several aproach
you could instantiate a excel object on your server using VSTO, and then write the document on memory and write to response the native file, but this aproach could be a litle expensive if you create a excel object per request, so you could try to do a singleton object that wraps the excel object instance
You can create a report (rdlc file) with a similar look to the grid. Then, you can have an action where you instantiate a LocalReport, pass the data you want to it and call its Render method. You then return the byte array returned by the Render method.
I am creating a Word document based on a template. The template contains a image in the header section which I would like to re-use elsewhere in the document.
The image is stored in the package -> word/media/myImage.jpeg so I need to somehow add a relationship to my each section that I wish to display the image again. I have attempted this successfuly manually, the question is how using the sdk 2.0.
Using the AddImagePart() method is useless as this just adds the image again which is silly as I only need one copy rather than several duplicates stored in the package.
Anyone shed some light?
My experience with the SDK 2.0 is primarily in SpreadsheetML, but assuming the same principles are used in WordprocessingML, you need to create a relationship to the existing ImagePart, by obtaining its ID (using the GetIdOfPart() method) and then calling the CreateRelationshipToPart() method on the part that will hold the secondary reference to it.
Best way is to open up the document in DocumentReflector.exe and have a look on the code generated
Eric has some blog posts about that http://blogs.msdn.com/ericwhite/