I want to take math equations from user interface like a textbox and save them to SQL Server.
Is there any possible way please suggest me. I found like creating images but it not possible for my project which needs to create lot and user did not have that much of knowledge in creating images and me too.
Please help me like binding virtual keyboard to textbox or other possible ways
NMaheshGoud
I'd take a look at MathML if I were you. It would require a custom control to allow the user to enter the data. Unfortunately the .Net editor appears to no longer be available but you could resort to a Flash-based one such as fmath Editor.
Why can't you save it in a nvarchar field?
Assuming you are allowing text input then save it as this base form?
I've published a JavaScript library that you can use to create a virtual math keyboard. It is intended for use together with any LaTeX typesetting library (for example MathJax or KaTeX).
GitHub repository: https://github.com/MathKeyboardEngine/MathKeyboardEngine
Live examples: https://mathkeyboardengine.github.io
I see that you want to store the user's input in a database. Call getViewModeLatex to get the user's input as a LaTeX string (for example \frac{x}{1-x}) that you can store.
Related
I have a Xamarin Forms app where users enter the pieces of information they want to gather on a form. The user provides a caption for each piece of information. I want to allow the user to enter a caption for each piece of information in multiple languages. I was wondering if there was a best practice for doing this?
My thought was to load all the ISO-639-1 codes into a list in the app and let the user select from the list of ISO-639-1 languages. Then they could enter the caption for each piece of information in that language. Any other thoughts?
FYI - I want to use the ISO 639-1 codes as the key for the language in the app as that is what the CultureInfo.CurrentUICulture.TwoLetterISOLanguageName line of code returns in Xamarin Forms.
So I ended up loading a list of languages based on the ISO_639_1_Code into an object in my application. This is all hard coded fyi. Then I have a combobox where the user selects the language they would like to add translated captions for. When they enter the new languages, I save them in the app with the language code set as the ISO_639_1_Code. This is working fine for me.
I am writing a CodeGenerator. The string output is later on mixed with user code.
In order to be able to make changes to my generated code after the user edits the file, I have to make sure my generated parts are not editable.
I am currently not sure how to achieve this behaviour..
If I would be able to track which line correlates to which CodeDomObject and vice versa I could tell my TextEditor to mark Lines as read only.
But at this Point I have two problems.
I don't know how to keep track.
I am not sure if my solution ( which I am not able to implement... ) is
clean. There would be a lot of overhead, because I have to find out
which object is generated and which not. I could do so by comparing a
generated CodeDomTree with the actual Tree and marking the diffs as
UserObjects.
I don't know if this solution is practical in your environment but this is handled using partial classes where required in Visual Studio.
An example would be Windows Forms where the visual designer is responsible for creating source code to reproduce the form at runtime but the developer is expected to add event handling code to the class.
By having the developer's code in a separate source file it doesn't get overwritten when changes are made in the designer.
Of course, this won't help you if you need to have a single source file for your class.
here is a different type of requirement in my project regarding pdf.
I want to generate a pdf with few of prefilled values. rest of the fields can be filled by user so Pdf should allow the user to edit the pdf so that he can save it locally on his system.
The pdf may contain checkboxes and textboxes.
I have worked with "itextsharp", "abc pdf" and "Rad Pdf".
For this purpose i can't use "Rad Pdf", due to some limitations by project owner.
Please share your valuable answers to give me a proper way to do this task.
Looking forward for your replies.
You need to use Adobe Professional, you can turn your existing electronic or paper forms into fillable forms with a few clicks.
http://adobe.ly/Ydc7qb
Acrobat Reader XI provides features to save eForms out of the box.
Provided your clients are using this version of Acrobat they will be able to fill in and save standard PDF forms.
The only problem you may have relates to older versions of Acrobat Reader which did not have this feature.
So any eForm produced using ABCpdf or indeed any PDF library should work the way you want provided your clients have a recent version of Acrobat Reader.
ABCpdf includes an example project called 'Annotations' which shows how to create eForms in this way.
My replies may feature concepts based around ABCpdf .NET because it's something I work on. :-)
What would be the best approach to replace placeholders in a .docx document (Word 2010) with data coming from a MySQL database?
Can I just open the file using a server side language and do a string replace per each placeholder?
Is there any existing tool/library available?
Thanks
Disclosure: I work for Invantive.
Using Invantive Composition (http://www.invantive.com/products/invantive-composition) you can fill Word documents (letters, legal pleadings, insurancy policies) with data from a database (IBM DB2, Oracle, MySQL, Teradata and SQL Server) and then fully change the contents at will manually. It is intended for real Microsoft Word end-users (both the guys that make the template and the ones that use it) that access the databases through a central webservice and models with queries. Invantive Composition allows nested repeating groups of data and lay-out. Integrates into Microsoft Word using click once.
In the past, I personally have also been using JasperReports (http://community.jaspersoft.com/project/jasperreports-library) to generate letters using the RTF output target of JasperReports. It is free and works fine as long as you do not want to edit the output more than a few words and have Java/SQL development skills. Just as Invantive Composition it works fine for large numbers of different reports.
As long as you can control the environment completely, you can also consider using RTF as intermediate language (not for end-users, only real developers). Save document as RTF, replace parts of the text you need to be replacable, write a webservice that accepts the parameter and dumps back the resulting RTF. Takes some time to generate more complex tables (tables are obviously something invented by the human race after the RTF specification was written :-) This approach only works with very limited number of templates and when you have sufficient developer time available to get it up and running and stabilized.
As an independent reviewer, I have also seen cases where XML templates were used, but the results were not as good as with JasperReports.
**Disclosure: I lead the docx4j project **
There are heaps of existing tools/libraries available!
Yes, you can just do a string replace, but that is a brittle approach, since Word may have split the string across runs.
You can use MERGEFIELDs, or content control data binding.
docx4j supports all three approaches, but content control data binding is the most powerful.
ContentControlsMergeXML
MERGEFIELDs
VariableReplace
One thing to consider especially is "repeats". If you want say a row of a table in Word, for each matching row in your MySQL table, then you need a way to make this happen.
docx4j does this with a "repeat" content control around the table row; whichever solution you choose, I'd make sure up front that it can handle repeats.
If you want to use PHP the most complete available solution is PHPDocX.
You may check in the tutorial how to substitute placeholder variables by data coming from any data source (like a MySQL DB).
In particular, you may populate table rows with an indefinite number of entries and you may delete whole blocks of the Word document depending on the data fed to the application or build dynamical Word charts.
You may check the available DEMO for a simple but quite illustrative example (its inner workings are explained in the tutorial section).
You can use open Open XML SDK and replace your placeholders like this.
Disclosure: I lead the docxgenjs project
I think you shouldn't have to code everything by yourself, that's why I created a Mustache-like templating engine for docx
Demo:
http://javascript-ninja.fr/docxgenjs/examples/demo.html
Repo
https://github.com/edi9999/docxgenjs
It is JS-based and works client and server side.
Yes, you can use server side language to do it.
Check on apache POI.
http://poi.apache.org
Hello I read the above esp the comments and Ivantive looks impressive - but the solution I needed was much simpler. Use Selection.Range.InsertDatabase in Word to fetch records from an access database or excel spreadsheet or even just another word document. With the access solution you can choose the layout of the records to fetch and have it fetch just particular recordds based on a field (eg ID). Google the words above and it'll take you to MS guidance and an example VB script. Worked well in just a few mins. Now looking for VB script that asks the person what ID they want from the dbase and we're done.
it uses docx templates that have merge fields with java objects (the objects have the information you load from mysql or any other source). The xdoc report is an project for java language, the home page of the project is https://code.google.com/p/xdocreport/.
*Disclosure: I create the templ4docx project *
Hello
You can use templ4docx java library, which is on maven central repository, so you can just add it to your maven dependencies:
<dependency>
<groupId>pl.jsolve</groupId>
<artifactId>templ4docx</artifactId>
<version>2.0.0</version>
</dependency>
Example usage:
Docx docx = new Docx("E:\\template.docx");
Variables variables = new Variables();
variables.addTextVariable(new TextVariable("${firstName}", "John"));
variables.addTextVariable(new TextVariable("${lastName}", "Sky"));
docx.fillTemplate(variables);
docx.save("E:\\filledTemplate.docx");
More details you can find here: http://jsolve.github.io/java/templ4docx/
What my users will do is select a PDF document on their machine, upload it to my website, where I will convert into an HTML document for display on the website. The document will be stored in a database after conversion.
What's the best way to convert a PDF to HTML?
I have been handed a requirement where a user would create a "news" story as a pdf and then would upload it to the sever, where it will be converted to HTML and displayed on the website.
Any document creation software that can save documents as PDF can save them as HTML. I'm assuming the issue is that your users will be creating rich documents (lots of embedded images), which results in multiple files, and your requirements stem from a desire to make uploading these documents as simple as possible to the user.
There are numerous conversion packages that can probably do this for you, however when you're talking about rich content, you are talking about text plus images. Those images have to be stored somewhere and served somehow, and whatever conversion method you use will require you to examine all image sources to make sure they point to valid locations on your server.
I would like to suggest an alternate way of doing this that you can take to your team: Implement one of the many blog APIs for publishing content. There are free and commercial software packages that use these APIs to publish content directly to a website, such as Windows Live Writer and Microsoft Word. Your users can simply create their content and upload it directly to your website without having to publish it as PDF first then upload it. So the process becomes much smoother for your users, and you get the posts in a form that doesn't require you spend thousands of dollars on developing or buying conversion code.
The two most common APIs are the MetaWeblog API and the Movable Type API. Both are very simple and easy to implement. I think this way would be a MUCH better alternative than what you're thinking about doing.
I don't think converting a PDF to an HTML string is necessarily the best idea, especially if you want to export it back as PDF. PDF files often contain binary elements such as images, so you may be best to convert it to ASCII via an encoding, such as Base64. That way you will have an ASCII string you can save into a text field in the DB and then convert it back out. Could you expand more on the main requirement?
My recommendation would be to not do it that way IF POSSIBLE (but we all know what managers are like) so...
I would recommend that you stay away from converting the PDF to/from HTML (because unless you can find a commercial solution it will be nigh on impossible) and instead do as has already been mentioned and store it as an encoded Base64 string, or BLOB or some other binary format in the database, and then display it to the user with some sort of PDF view plugin for the browser.
All it took was a simple google search for "PDF to HTML": http://www.gnostice.com/pdf2manyOverview_x.asp. I'm sure there are others.
So while it's 'possible', you may want to explain to your manager that this isn't the best content management solution.
Why not use the iTextSharp to read the PDF content? Then You could save both the binary PDF and the text content to the database. You could then let users search the content and download the PDF.
You should look into DynamicPDF. They have a converter (currently Beta) out for serving exactly this purpose. We have used their products with great success (especially for dumping Reporting Services reports directly to PDF).
Ref: http://www.dynamicpdf.com/