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[Solved] Convert a byte array to pdf in c# - CodeProject
You seem to be trying to write a byte arry from a database into a file: why is this giving you problems? If you have the bytes , just write them:.

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through the variable @table; the second is all of the data from that table, retrieved using the find_all method, which will be accessible through the variable print_data. Note that the names used by the template correspond to the keys in the hash, and not to the original variable names. context={:table=> OutputTable, :print_data=>OutputTable.find_all} The next line creates an erubis object by calling Erubis::ERuby.new() with the contents of our template file as an argument. All that s left is to print the results of evaluating that is, running the code using the variables we created on the context= line. At this point, the control is handed off to the template, and then the result is printed. eruby_object= Erubis::Eruby.new(File.read('template.rhtml')) puts eruby_object.evaluate(context) As you can see, the control code is very simple and clean it s easy to extend this to having multiple templates or storing the templates in the database, or to scale it up to more templates and more data. Next let s look at the template internals: <table> <tr> <%@table. column_names.each do |col|%> <th><%=col %></th> <%end%> </tr> <%@print_data.each do |row|%> <tr> <%@table.column_names.each do |col|%> <td><%==row[col]%></td> <%end%> </tr> <%end%> </table> This is the heart of our template it contains three loops, the first of which prints out all of the column names from the @table variable passed from our controller. The second loops through each row of data, and the third loops through each column of each row, printing the data. As you can see, it s fairly simple and you can easily modify the presentation of the code without changing the logic behind the controller.

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function addObservers() { $('entry').observe('submit', submitEntryForm); $('toggler').observe('click', toggleEntryForm); $('food_type', 'taste').invoke('observe', 'blur', onTextBoxBlur); }

rowInQuestion = animalsTable.Rows[1]; rowInQuestion.Delete();

Remember Enumerable#invoke Here we re using it to call the observe method on a collection of two elements, passing the last two arguments in the process. Now let s do some functional testing to make sure this works right. Reload the page in your browser. First, try clicking the submit button immediately, before focus has been given to either text box. Figure 5-9 shows the result.

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iText / iTextSharp can generate and/or modify existing PDFs but they do not perform any ... you can use ImageMagick convert pdf to image .

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rowInQuestion = animalsTable.Rows(1) rowInQuestion.Delete() This statement will mark the row s RowState as Deleted; however, the row still remains in the DataTable until you do an Update using a DataAdapter or an AcceptChanges on the DataTable. Thus, this approach is useful when sending information about deleted rows to the database via the data adapter. If the rows were actually removed from the DataTable, the data adapter would have no clue which rows to execute delete queries upon. Another way of removing a row is by using either the Remove or RemoveAt method on the DataRowCollection object (DataTable.Rows is of DataRowCollection type). This is shown here:

erubis is a great way to use eRuby templates. It s fast, it s customizable, and it s easy to use; any time you need eRuby, you should think about using erubis.

Works as expected! Now click inside the food_type text box and type some text. Press Tab to change focus, and notice how the red border disappears (see Figure 5-10).

animalsTable.Remove(rowInQuestion) ; // or animalsTable.RemoveAt(1) ;

animalsTable.Remove(rowInQuestion) ' or animalsTable.RemoveAt(1) Or you can use the nuclear option and call DataRowCollection.Clear() to completely remove all rows from the DataTable s Rows collection.

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Now click inside the food_type text box once again to give it focus. Delete the box s value, and then press Tab. The text box should once again have a red outline, as shown in Figure 5-11.

he feedtools gem helps you parse feeds in either the RSS or Atom format. RSS and Atom are formats used to publish frequently updating digital content, such as blogs, news, wikis, or podcasts. Both formats allow programs to programmatically retrieve the information from such sites; often, programs will aggregate multiple feeds together and display the results of several sites at once. feedtools is an excellent choice for writing those sorts of aggregators. It can be useful in a variety of contexts; for example, you could use it to add a sidebar displaying news from CNN or BBC to your rails application. You could also use it to display search-engine results, such as a job search on Indeed.com or a blog search on Google Blog Search. You can even use it to display videos from Yahoo! News or YouTube.

However, the Remove, RemoveAt, and Clear methods are not available on a DataView. If you are using a DataView, you d need to either access the underlying table using the DataView.Table property, or you could call DataRowView.Delete to mark a row as deleted (but not actually removed) from the DataTable. Once again, in any of these three cases (Add, Modify, Delete), it s critical to understand that only the disconnected cache of data is edited. With any of these statements, the underlying database is not modified. As a matter of fact, the underlying database remains untouched until you call a relevant data adapter s Update command with the appropriate command objects set. So while the changes are being made, you can still look at the history of the DataRow to some extent. This is done using the following code:

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