c# excel to pdf free library

c# excel to pdf free library

utility to convert excel to pdf in c#

pdf asp.net tab upload using, pdf file free how to quality, pdf image os tiff vb.net, pdf bit free full software, pdf free line software windows xp,

itextsharp add annotation to existing pdf c#, convert pdf to excel using itextsharp in c#, convert pdf to word c#, convert pdf to excel using c# windows application, download pdf file in c#, open pdf in word c#, c# code to convert pdf to excel, convert pdf to tiff asp.net c#, convert pdf to tiff c# itextsharp, bytescout pdf c#, c# code to save excel file as pdf, pdf to jpg c#, c# convert pdf to tiff itextsharp, convert pdf to word programmatically in c#, c# excel to pdf open source

asp.net pdf viewer annotation, read pdf file in asp.net c#, asp.net pdf viewer component, mvc display pdf from byte array, how to download pdf file from folder in asp.net c#, download pdf in mvc, print pdf file using asp.net c#, how to write pdf file in asp.net c#, hiqpdf azure, asp.net mvc display pdf

c# excel to pdf open source,
c# save excel as pdf,
utility to convert excel to pdf in c#,
how to save excel file as pdf using c#,
c# excel to pdf,
c# excel to pdf free library,
c# save excel as pdf,
convert excel to pdf c#,
convert excel to pdf using c# windows application,

To perform an XML query, you must use the SqlCommand.ExecuteXmlReader() method. This method returns an XmlReader with the results of your query as an XML fragment. You can move through the XmlReader one node at a time in a forward-only direction in the same way you use the XmlTextReader. In fact, XmlTextReader derives from XmlReader. Here s the code needed to retrieve and display a customer list on a web page: // Define the command. string customerQuery = "SELECT FirstName, LastName FROM Employees FOR XML AUTO, ELEMENTS"; SqlConnection con = new SqlConnection(connectionString); SqlCommand com = new SqlCommand(customerQuery, con); // Execute the command. StringBuilder str = new StringBuilder(); try { con.Open(); XmlReader reader = com.ExecuteXmlReader();

<%# DataBinder.Eval(Container.DataItem, "Length") %> bytes. <hr> <%# GetVersionInfoString(DataBinder.Eval(Container.DataItem, "FullName")) %> </ItemTemplate> </asp:DataList> The data binding expressions are fairly straightforward. The only one that needs any expression is the GetVersionInfoString() method. This method is coded inside the page class. It creates a new FileVersionInfo object for the file and uses that to extract the version information and product name. Protected Function GetVersionInfoString(ByVal strPath As Object) As String Dim info As FileVersionInfo = FileVersionInfo.GetVersionInfo(CStr(path)) Return info.FileName & " " & info.FileVersion & "<br>" _ & info.ProductName & " " & info.ProductVersion End Function Of course, most developers have FTP tools and other utilities that make it easier to manage files on a web server. However, this page provides an excellent example of how to use the .NET file and directory management classes. With a little more work, you could transform it into a full-featured administrative tool for a web application.

c# convert pdf to image ghostscript, c# pdf library github, c# split pdf into images, convert pdf to jpg c# codeproject, pdf to tiff c# code, c# code 39 generator

It concatenates the user-supplied filename with the Documents path, thereby allowing the user to retrieve data from any file in this directory The problem is that filenames can be represented in multiple formats Instead of submitting a valid filename, an attacker can submit a qualified filename such as .\filename The concatenated path of WebApp\Documents\.\filename will actually retrieve a file from the parent of the Documents directory (WebApp) A similar approach will allow the user to specify any filename on the web application drive Because the web service is limited only according to the restrictions of the ASP NET worker process, the user may be allowed to download a sensitive server-side file The fix for this code is fairly easy Once again, you can use the Path class.

while (reader.Read()) { // Process each employee. if ((reader.Name == "Employees") && (reader.NodeType == XmlNodeType.Element)) { reader.ReadStartElement("Employees"); str.Append(reader.ReadElementString("FirstName")); str.Append(" "); str.Append(reader.ReadElementString("LastName")); str.Append("<br />"); reader.ReadEndElement(); } } reader.Close(); } finally { con.Close(); } lblXml.Text = str.ToString(); Of course, life gets much more interesting when you combine an XML query with some of the other standards you ve seen in this chapter, such as XPath searching or XSL transformation. These techniques aren t for everyone, but they do give you the ability to transform your data into virtually any XML representation.

The .NET Framework uses a stream model in several areas of the framework. Streams are abstractions that allow you to treat different data sources in a similar way as a stream of ordered bytes. All .NET stream classes derive from the base System.IO.Stream class. Streams represent data in a memory buffer, data that s being retrieved over a network connection, and data that s being retrieved from or written to a file. Here s how you create a new file and write an array of bytes to it through a FileStream: Dim fStream As FileStream = Nothing Try fStream = New FileStream(fileName, FileMode.Create) fStream.Write(bytes) Finally If fStream IsNot Nothing Then fStream.Close() End If End Try In this example, the FileMode.Create value is specified in the FileStream constructor to indicate that you want to create a new file. You can use any of the FileMode values described in Table 13-10. Table 13-10. Values of the FileMode Enumeration

This time, you use the GetFileName() method to extract just the final filename portion of the string, as shown here: fileName = PathGetFileName(fileName); FileInfo file = new FileInfo(ServerMapPath( PathCombine("Documents", txtBoxText)); This ensures that the user is constrained to the correct directory If you are dealing with URLs, you can work similar magic with the SystemUri type For example, here s how you might remove query string arguments from a URI and make sure it refers to a given server and virtual directory: string uriString = "http://wwwwrongsitecom/pageaspx cmd=run"; Uri uri = new Uri(uriString); string page = SystemIOPathGetFileName(uriAbsolutePath); // page is now just "pageaspx" Uri baseUri = new Uri("http://wwwrightsitecom"); uri = new Uri(baseUri, page); // uri now stores the path http://wwwrightsitecom/pageaspx Table 13-9 lists the methods of the Path class..

Summary

.net core qr code generator, birt code 128, birt code 39, birt upc-a