c# edit pdf

edit pdf c#

edit pdf c#

pdf download free software tiff, pdf c# code data os, pdf c# convert png tiff, pdf example extract image ocr, pdf c# new open viewer,

convert pdf to jpg c# codeproject, convert pdf to jpg c# codeproject, open pdf and draw c#, pdf2excel c#, c# excel to pdf free library, itextsharp excel to pdf example c#, convert pdf to image c#, itextsharp add annotation to existing pdf c#, convert pdf to jpg c# itextsharp, c# convert excel to pdf without office, itextsharp add annotation to existing pdf c#, sharepoint convert word to pdf c#, edit pdf file using itextsharp c#, convert pdf to excel using c#, convert tiff to pdf c# itextsharp

mvc print pdf, how to show pdf file in asp.net c#, generate pdf using itextsharp in mvc, azure pdf generator, pdf viewer in asp.net web application, how to print a pdf in asp.net using c#, asp.net c# read pdf file, how to write pdf file in asp.net c#, azure pdf conversion, print pdf in asp.net c#

c# pdf editor,
pdf editor in c#,
c# edit pdf,
pdf editor in c#,
c# edit pdf,
c# create editable pdf,
pdf editor in c#,
edit pdf c#,
c# create editable pdf,

So far, you have examined how to create, hydrate, and iterate over the contents of a DataSet object manually using the inherit object model of ADO.NET. While understanding how to do so is quite important, the .NET platform ships with numerous APIs that have the ability to bind data to user interface elements automatically. For example, the original GUI toolkit of .NET, Windows Forms, supplies a control named DataGridView that includes the built-in ability to display the contents of a DataSet or DataTable object using only a few lines of code. ASP.NET (.NET s web development API) and the Windows Presentation Foundation API (a supercharged GUI API introduced with .NET 3.0) also support the notion of data binding. You will learn to bind data to WPF and ASP.NET GUI elements later in this book; however, in

Creating users is as simple as using the rest of the membership API. You can create users by just calling the CreateUser method of the Membership class. Therefore, if you want to add the feature of creating users to your website, you can add a new page containing the necessary text boxes for entering the required information, then add a button, and finally catch the Click event of this button with the following code: Protected Sub ActionAddUser_Click(ByVal sender As Object, ByVal e As EventArgs) Try Dim Status As MembershipCreateStatus Membership.CreateUser(UserNameText.Text, PasswordText.Text, UserEmailText.Text, PwdQuestionText.Text, PwdAnswerText.Text, True, Status) StatusLabel.Text = "User created successfully!" Catch ex As Exception Debug.WriteLine("Exception: " & ex.Message) StatusLabel.Text = "Unable to create user!" End Try End Sub The CreateUser exists with several overloads. The easiest overload just accepts a user name and a password, while the more complex versions require a password question and answer as well. The MembershipCreateStatus object returns additional information about the creation status of the user and is added as an output parameter because the method already returns a new instance of MembershipUser. Depending on the provider s configuration, your call to simpler versions of CreateUser will succeed or fail. For example, the default membership provider requires you to include a password question and answer; therefore, if you don t provide them, a call to CreateUser will result in an exception. Deleting users is as simple as creating users. The Membership class offers a Delete method that requires you to pass the user name as a parameter. It deletes the user as well as all related information, if you want, from the underlying membership store.

display pdf file in vb.net form, extract table from pdf to excel c#, convert pdf to word using c#, asp.net code 39 reader, pdf to image conversion in c#.net, vb.net pdf

this chapter, you will use Windows Forms because it is a fairly simple and straightforward programming model.

Last but not least, the Membership class provides a method for validating a membership user. If a user has entered his user name and password in a login mask, you can use this method for programmatically validating the information entered by the user, as follows: If Membership.ValidateUser(UserNameText.Text, PasswordText.Text) Then FormsAuthentication.RedirectFromLoginPage(UserNameText.Text, False) Else ' Invalid username or password End If

Note The next example assumes you have some experience using Windows Forms to build graphical user interfaces. If this is not the case, you might wish to open the solution and follow along or return to this section once you have read Appendix A.

Your next task is to build a Windows Forms application that will display the contents of a DataTable object within its user interface. Along the way, you will also examine how to filter and change table data. You will also learn about the role of the DataView object. Begin by creating a brand-new Windows Forms project workspace named WindowsFormsDataBinding. Rename your initial Form1.cs file to the more fitting MainForm.cs using the Solution Explorer. Next, use the Visual Studio 2010 Toolbox to drag a DataGridView control (renamed to carInventoryGridView using the (Name) property of the Properties window) onto the designer surface. Notice that when you do this, you activate a context menu that allows you to connect to a physical data source. For the time being, ignore this aspect of the designer because you will be binding your DataTable object programmatically. Finally, add a descriptive Label to your designer for information purposes. Figure 22-5 shows one possible look-and-feel.

Summary

public class UserServiceImpl implements UserService { private UserDao userDao;

Similar to the previous SimpleDataSet example, the WindowsFormsDataBinding application will construct a DataTable that contains a set of DataColumns representing various columns and rows of data.

barcode scanner in .net core, tesseract ocr c# tesseractengine, asp.net core qr code reader, asp net core 2.1 barcode generator