Executing Shell Command or Command Prompt(cmd) in ASP.NET

In this article i am going to demonstrate how we can execute the underlying OS commands in ASP.NET. First of all you need to change the IIS configuration settings. Go to control Panel - > Administrative tools -> Services -> Select ISS Admin Properties -> Goto logon tab and check the "Allow service to interact with desktop" . The following code demonstrates the compiling of a C file named 'abc'. First of all you have to use the name space using System.Diagnostics.




Process mpr = new Process();
mpr.StartInfo.FileName = "Cmd.exe";
mpr.StartInfo.Arguments = @"/C tcc c:\abc.c";
mpr.StartInfo.RedirectStandardError = true;
mpr.StartInfo.RedirectStandardOutput = true;
mpr.StartInfo.UseShellExecute = false;
mpr.StartInfo.CreateNoWindow= true;
mpr.Start();
mpr.WaitForExit(1000);

Now lets have a look at the code First of all you Create an instance of Process class. Then you specify the application to be executed. In the third line you specify any arguments that is to be passed to the application. Now comes the redirection part. What does the 4th and 5th line means.When a Process is executed it typically writes its Errors and outputs to its "standard error/outout stream". By using 'RedirectStandardError/RedirectStandardOutput' we can can manipulate or suppress the error/output of a process. i.e. we can filter,modify or even write the output to both the console and a designated log file.

We were talking about executing shell commands and here is the line that says
"mpr.StartInfo.UseShellExecute = false;"
what does it mean?.
By default this property is true. And when this property is set to true we can perform any operation using Process component like starting a document,perform operations on files like printing etc.. But the problem is that we can't redirect the input, output, and error streams. This property must be set to false to redirect all the above. So what happens when we set this property to false? When set to false the process is created directly from the executable file. i.e. simply saying you can start only executables with the Process component.

The next line 'mpr.StartInfo.CreateNoWindow= true;' starts the process without creating a new window to contain it. And finally 'mpr.Start();' starts your process.

Enjoy!!!!!!!!!!!!!!!

I hope it was informative and use ful to you. If you find any errors (technical) please inform us.

NB: In the near future we are planning to migrate this blog to a website. Hope all of you will support us.

Just launched!-What's new in Google Docs?

What's new in Google Docs?

Google still working to make Google Docs a better place, and we're listening closely to your suggestions.

Just launched!

• Shared folders
  Now you can simultaneously share a group of docs with your friends, coworkers, or family, by sharing an entire folder with them. Learn more

• Bulk upload
  Upload multiple files quickly to your Docs list. Learn more

• Drawings improvements
  Choose 'Insert Drawing' in any document, spreadsheet, or presentation to check out these new features.

  • Snap to guides
    Snap to guides helps you easily align objects with the drawings canvas and other objects. Learn more

  • Polylines
    Create continuous lines or even enclosed custom filled shapes composed of multiple segments. You can close shapes, fill them, and even move around points on a line by double-clicking the line. Learn more

  • Draw multiple lines
    It's now easier to quickly draw a sequence of related lines. Now when you finish drawing a line, arrow, or scribble, you stay in line drawing mode so you can start a new line immediately. Learn more

• Translate and detect languages in Google spreadsheets
  =GoogleTranslate("Hola, ¿cómo estás?","es","en") gives "Hi, how are you?" (or leave out "en" and we'll automatically choose the default language of your spreadsheet) What if you don't know the language? =DetectLanguage("Hola, ¿cómo estás?") gives "es". Learn more

• Forms: Add pages and allow navigation to a specific page within a form
  Whether it's showing a different set of food questions for vegetarians and meat-etarians or building a Choose Your Own Adventure game, Google forms can take care of it all. Add page breaks to your form and let people fill out only the sections that are relevant to them. Learn more

• Print footnotes as endnotes
  Choose to print your footnotes as endnotes through the 'print settings' page. Learn more

• Dictionary translation
  Find the definition of a word in a given language and then translate the word and the corresponding definitions into an alternate language. Learn more

• Equation editor
  Insert and edit mathematical equations and symbols in documents. Learn more

• Forms improvements
  We've added a new question type (grid), support for right-to-left languages in forms, and a new color scheme for the forms summary. Also, you can now pre-populate form fields with URL parameters, and if you use Google Apps, you can create forms which require sign-in to access. Learn more

• Translate document
  You can now translate an entire document into over 40 languages. Learn more

• Solve improvements
  Now your target cell can include the =sum() and =sumproduct() functions. Learn more

• Export images into .xls files
  Description: Now you can export images from spreadsheets when exporting in .xls format. Learn more

• Email as an attachment
  From the share button you can now email your Google Spreadsheets workbook out directly as an attachment in .xls, .csv, .ods, .pdf and other popular formats. Learn more

• Snap to grid
  Auto-align text, images, shapes, and tables within your slides. Learn more

• Insert images
  Insert an image into your drawing and add scribbles, shapes, lines, arrows, and text boxes on top of the image. Learn more

• Tables
  You can now add tables to Google Docs presentations. Learn more

• Automatically cycle through slides
  You can automatically cycle through slides in presentation mode and enable time delay, autostart, and loop. Learn more

• Solve
  With Solve, you can easily optimize linear equations by specifying a target cell for the result and adding constraints to help you reach your answer. Learn more
  

• ROMAN function
  Converting numbers into Roman numerals as easy as I, II, III. Learn more

• Forms improvements
  We're adding section headers to allow you to divide your form in sections and provide more information for your respondents within the form. Learn more

• DOCX Import
  You can now import Word 2007 files (.docx) into Google Docs. Learn more

What's been keeping us busy

• New publish dialog for spreadsheets
  We've improved the sharing dialog to make it easier for you to publish your spreadsheet into different formats! Using the new publishing dialog, it's easy to get an html snippet, pdf file, or published link and share it with your friends, family, or colleagues. Learn more

• Themes for forms
  Add a splash of color to your surveys and questionnaires. When you create and edit a form, simply apply one of the 70 themes. Learn more
  

• Sheet Protection
  Spreadsheet owners can use the sheet protection feature to lock sheets so they can only be edited by collaborators the owner chooses. Learn more
  

• List View and Mobile View Improvements
  Now you can see your spreadsheets with all their formatting in List View and on your mobile device, this includes background/foreground colors, borders and text formatting! Learn more

• Drawings and diagrams
  Create your own drawings and diagrams in Google Docs and use them in your text documents, spreadsheets and presentations. As with the rest of Google Docs, your drawings are auto-saved and you can edit them collaboratively. To get started, open a document and select Insert > Drawing. Learn more
  

• Find and replace toolbar for text documents
  The "Find and replace" feature in the text document Edit menu has gotten a makeover and an upgrade. Now it's a slick toolbar that sports case matching, whole word matching as well as regular expression-style matching. Learn more
  

• XLSX import
  You can now import supporting cell data, formatting, formulas, font style, background color, named ranges, frozen panes, and horizontal merges from Excel '07. Learn more

• Google Apps automatic identity in Forms
  This feature enables the collection of the user's email address when filling out a form on a Google Apps domain. Learn more

• Form summary page
  The form summary page can now be printed. Learn more

• List view in the desktop version of Google spreadsheets
  You can now use list view's simple design and powerful filtering and sorting on your desktop or notebook computer. Learn more

• Google Tournament function
  The GoogleTournament() function allows users to query NCAA data (including team names, records, scores, seedings, game times, etc) in a Google spreadsheet (ideal for creating automatic brackets). Learn more

• Data Validation
  With two levels of validation, strict and lenient, you can now control what you and your collaborators enter into a spreadsheet. Learn more
  

• List View
  This 'lightweight' version of Google Spreadsheets will allow you to do quick edits when you are accessing Google Spreadsheets from select mobile devices (Android, iPhone and Nokia S60), when you are on a slow Internet connection or when there are more than 50 people accessing your spreadsheet at the same time. Learn more
  

• Form Summary for your collaborators
  You can now let your collaborators or form respondents see a summary of the form responses. Learn more

• Offline access in 40 languages
  You can now view & edit text documents offline and view spreadsheets, forms, and presentations offline in 39 more languages. To get started, you'll first need to enable offline access for Google Docs.

• Print preview
  Need to see how many pages your document is or check on how your footnotes look at the bottom of the page? Go to File > Print preview for quick look at how your document will appear when printed.
  

• Forms in the templates gallery
  We've added 13 spreadsheet forms to the Templates Gallery under a new document type "Forms". Browse the new forms.

• Footnotes for your school assignments
  You can now annotate your documents with footnotes. Use Insert > Footnote to add a footnote into the right margin. When printed, the footnotes will appear at the bottom of the page. Learn more.

• New UI for spreadsheets!
  Just like our other editors in Google Docs, spreadsheets now has an updated interface. Menus make it easy to find all of our great and unique spreadsheet editing features.
  Sharing spreadsheets has also been updated. Now, it's simpler to invite people and manage access. As always, stay tuned as we continue to make this all-important action of sharing as simple as possible while giving you complete control over who sees and edits your content. Learn more

• Add a table of contents to your documents
  Use the heading styles to title sections of your document (from the format menu, select Minor Heading, Sub-Heading, Heading). Then add a table of contents that will refer to those titled sections (from the Insert menu, select Table of contents). Learn more.

• "Look up word" (U.S. English only)
  Select any word in your document, then go to the Tools menu to look up the word in your choice of U.S. English dictionary, thesaurus or encyclopaedia. Learn more.

• Google search integration
  Again via the Tools menu, search the web for the word or words you have selected - either a regular text Google search or a Google image search. Learn more.

• New UI in presentations!
  Google presentations now has a completely new interface, increasing the size of the slide during editing and visibility of thumbnails.

• Slide Zooming
  Zoom in and out of your slides to see your content in detail. Learn more.

• Create forms in a jiffy
  Choose New > Form to create new forms straight from Docs Home. We've also improved form editing, starting with drag-and-drop to reorder questions. Learn more.

• Autosave for forms
  You don't have to lift a finger to use this new feature. Now, your form edits are automatically saved.

• Find and replace
  Use Ctrl + F to search for and replace text across your entire spreadsheet. Learn more.

• Two powerful new functions
  IMPORTRANGE() can reference data from any of your spreadsheets. SPLIT() cleans up text in a cell by splitting it into multiple cells at any delimiter you choose. Learn more about the importrange() function and the split() function.

• Bullet and Object Reveals in presentations
  Pace your presentations with the new reveals feature. Set objects to appear in a certain order and advance through them by clicking. Set textboxes to reveal one bullet/paragraph level at a time. Learn more.

• New! Templates
  Create professional documents, spreadsheets, and presentations in Google Docs. Get a jump start with one of hundreds of templates. Browse the templates gallery or learn more. Google Apps user? Learn how to use templates in your Apps account.

• Analytics tracking on published documents
  You can now track how much traffic a particular published document is getting through Google Analytics. Learn more.

• "Form" tab
  A new "Form" tab gives quick access to tools for creating, sending, and embedding spreadsheet forms. Learn more.

• Scientific Notation Format
  Use Scientific Notation to represent bigger numbers - for example, enter 1.23E+15 when you want 1,230,000,000,000,000 or format large numbers ending in 000's explicitly in this format using the new option on the Format dropdown. Learn more.

• Expand gadgets to a full sheet
  Give your gadgets more love. A whole window's worth of love. Now, you can use the "Move to own sheet" feature to give a gadget as much breathing room as it needs. (You can publish this separately, too!) Learn more.

• Engineering Functions
  We've finally added functions to convert between decimal, binary, hexadecimal and octal - known as dec2bin, dec2oct, dec2hex, and, well, if you know these, you know the rest. Learn more.

• Custom colors in presentations
  Can't find that specific shade of blue you need for your presentations? Now you can define colors in the color picker, creating your own palette for backgrounds, text and shapes in your slides. Learn more.