Getting Started with ASP.NET 4.5 Web Forms - Checkout and Payment with PayPalhttp://www.asp.netSun, 03 Mar 2013 19:11:20 GMTumbracoComments for Getting Started with ASP.NET 4.5 Web Forms - Checkout and Payment with PayPalenComment Posted by marcosbhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalFri, 24 Aug 2012 17:01:01 GMT00000000-0000-0000-0000000016278Nice way to introduce new features of Asp.Net 4.5

The samples should be updated to consider number formatting in latin cultures. PayPal will fail if you use "24,5" instead of "24.5" for the total amount for example.

I would suggest to use parse the decimals using .ToString(System.Globalization.CultureInfo.InvariantCulture) for fields such as PAYMENTREQUEST_0_AMT.

]]>Comment Posted by bfallar3http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalTue, 28 Aug 2012 04:09:58 GMT00000000-0000-0000-0000000016321I got the following error on

myCurrentOrder = _db.Orders.Single(o => o.OrderId == currentOrderId);

Error 4 'System.Data.Entity.DbSet' does not contain a definition for 'Single' and no extension method 'Single' accepting a first argument of type 'System.Data.Entity.DbSet' could be found (are you missing a using directive or an assembly reference?) C:\Users\b.p.fallar\Documents\Visual Studio 11\Projects\WingtipToys\WingtipToys\Checkout\CheckoutComplete.aspx.cs 56 42 WingtipToys

]]>Comment Posted by bfallar3http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalTue, 28 Aug 2012 04:18:07 GMT00000000-0000-0000-0000000016322It should have been written as

myCurrentOrder = ((IQueryable<Order>)_db.Orders).Single(o => o.OrderId == currentOrderId);

]]>Comment Posted by Kvihaanhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalTue, 04 Sep 2012 07:35:49 GMT00000000-0000-0000-0000000016376Thanks this code is very helpful, but i am facing one issue, i have created test account on sandbox as the steps you have specified and generated API credentials. but when i tried to execute 1) ShortcutExpressCheckout() method with all the valid parameters , but paypal return "You dont have permission to make call this API" (10002 error code that is Authentication/Authorization failed), so could pls tell wht step i need to follow to sort out this issue.

Because i m stuck because of this issue.

]]>Comment Posted by MrHooglazhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalWed, 12 Sep 2012 02:20:51 GMT00000000-0000-0000-0000000016418In ShoppingCart.aspx.cs

This: CheckoutBtn.Visible = false;

Should say: CheckoutImageBtn.Visible = false;

]]>Comment Posted by sdodangoadahttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalWed, 12 Sep 2012 07:00:12 GMT00000000-0000-0000-0000000016425

In the ShoppingCart.aspx file.

Replace the <!--Checkout Placeholder --> comment with an ImageButton control

follwing code original one makes error with wrong ImageButton ID

<asp:ImageButton ID="CheckoutBtn" runat="server"

ImageUrl="<a rel="nofollow" target="_new" href="https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif" target="_blank">https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif</a>"

Width="145" AlternateText="Check out with PayPal"

OnClick="CheckoutBtn_Click"

BackColor="Transparent" BorderWidth="0" />

]]>Comment Posted by threemeatshttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalWed, 12 Sep 2012 22:01:16 GMT00000000-0000-0000-0000000016428At the top of this section, under the heading 'Add the Order and OrderDetail Model Classes', it states to change the code in the ProductContext.cs file - the new code they state to add is incorrect. Instead of:

public DbSet Orders { get; set; }

public DbSet OrderDetails { get; set; }

it needs to be:

public DbSet<Order> Orders { get; set; }

public DbSet<OrderDetail> OrderDetails { get; set; }

after making that change everything works fine...hope this helps

]]>Comment Posted by RobEverett069http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalTue, 18 Sep 2012 10:33:34 GMT00000000-0000-0000-0000000016455There is a syntax error in CheckoutComplete.aspx.cs:

// Get the order based on order id.

myCurrentOrder = _db.Orders.Single(o => o.OrderId == currentOrderId);

- no definition for 'Single'

]]>Comment Posted by tomfitzhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalThu, 27 Sep 2012 13:23:01 GMT00000000-0000-0000-0000000016535Thank you for the feedback about the incorrect button name and the missing generic parameters in the ProductContext class. Those errors have been fixed.

]]>Comment Posted by joehuffhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalMon, 22 Oct 2012 17:58:40 GMT00000000-0000-0000-0000000016665I found this to be an outstanding tutorial. The sample application is very appropriate for any developer interested in provided his/her own online application. And the documentation provided is complete, accurate, and easy to follow. Thanks for the great job!

]]>Comment Posted by Niko68http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalThu, 25 Oct 2012 09:25:09 GMT00000000-0000-0000-0000000016677If you wish to use a reliable audio codec that ensures high quality for various VoIP applications then I recommend you to choose G.722. Its official name is Low-complexity coding at 24 and 32 kbps for hands-free operation in systems with low frame loss.

Here is a good description about G.722:

This audio codec is a transform-based compressor that is optimized for speech, music and other types of audio since it is able to provide high quality experience. It operates on 20 ms frames of audio.

Sinc

]]>Comment Posted by Niko68http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalThu, 25 Oct 2012 09:26:59 GMT00000000-0000-0000-0000000016678Since G.722 is a digital wideband coder algorithm, it has an audio bandwidth of 50 kHz to 7kHz and 16, 24, 32 kbps bit rates. Therefore it becomes very useful for hands-free operations in HD VoIP systems with low frame loss.

More details are available at voip

Bye,

Niklas

]]>Comment Posted by shafickhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalSat, 27 Oct 2012 20:40:04 GMT00000000-0000-0000-0000000016687i love it i love it and i really love what you guys at microsoft are doing to help us young developers get onto the whole programming wagon, though i dont understand most of the code i sure as hell try my best to revise it after i've pasted it and try and understand the most i can out of all that knowledge. Anyways i got a server instance error during this tutorial that highlighted the token = session["token"].ToString(); line in the checkoutReview.aspx.cs file its said something about the instance is not refering to an object (sorry i forgot the exact words but it was something along those lines.) but after afew "backspace and try agains" internet explorer offered to debug the problem for me using the built in debugger but i didnt understand the whole thing because the debugger pointed out another line in a review.js file that had the error so i close the application and ctrl+f5 again and surprisingly i got past the initial error, just pointing it out just incase theres something you missed. Oh nearly forgot to tell you, the error came up when i clicked continue on the paypal test site and i was supposed to be redirected back to wingtip toys sample app. but its working okay now though i surely don't know why.

Anyways great thanks for these tutorials keep up the good work.

]]>Comment Posted by gbarbosa84http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalFri, 07 Dec 2012 11:27:23 GMT00000000-0000-0000-0000000016961myOrder.Total = Convert.ToDecimal(decoder["AMT"].ToString());

I get an unhandled exception due to a conversion error. anyone knows how to solve this?

]]>Comment Posted by asadazmathttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalFri, 14 Dec 2012 12:24:01 GMT00000000-0000-0000-0000000017011Thanks Erik,

Should the class name in code snippet should be "PayPalFunctions" instead of NVPAPICaller? (its after we've added paypal test accounts)

]]>Comment Posted by berliozhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalTue, 18 Dec 2012 16:17:07 GMT00000000-0000-0000-0000000017029If I want to login to PayPal using the local account login rather than going through my google account, why can't I use the e-mail address and password that was created for my buyer test account on the PayPal sandbox website?

]]>Comment Posted by developer_aspxhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalSat, 29 Dec 2012 20:42:22 GMT00000000-0000-0000-0000000017089While properly logged in to PayPal to test buying from WingtipToys, logged on to Google and this error was returned:

“System.ArgumentException was unhandled by user code, HResult=-2147024809

Message=Keyword not supported: 'initial catalog'. Source=System.Data”

It then pointed at this line in RegisterExternalLogin.aspx.cs

// User created & associated OK

if (OpenAuth.Login(ProviderName, ProviderUserId, createPersistentCookie: false))

What is happening here?

]]>Comment Posted by developer_aspxhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalMon, 31 Dec 2012 00:37:15 GMT00000000-0000-0000-0000000017091I have solved the "Initial Catalog problem. I changed the security features of the IIS in world wide web services to URL authorization.

]]>Comment Posted by super_peeweehttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalFri, 18 Jan 2013 15:30:59 GMT00000000-0000-0000-0000000018202I'm having problems with the OpenAuth, when I press the Google's button to do checkout the application exploit and give me this error:

No OpenID endpoint found.

It exploit on this code:

OpenAuth.RequestAuthentication(provider, redirectUrl);

Please help me. Thanks.

]]>Comment Posted by shock83http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalWed, 13 Feb 2013 15:26:51 GMT00000000-0000-0000-0000000018423This is great tutorial altogether and i enjoyed working on it.

But, i encounter server error when application should to go on PayPal testing site, in other words - when user clicks on PayPal button.

This is actual error:

You must provide a request body if you set ContentLength>0 or SendChunked==true. Do this by calling [Begin]GetRequestStream before [Begin]GetResponse.

HttpWebResponse objResponse = (HttpWebResponse)objRequest.GetResponse();

Anyone know why?

]]>Comment Posted by jstushttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalThu, 14 Feb 2013 15:02:28 GMT00000000-0000-0000-0000000018430great tutorial.

I tried to experiment with it a little more, so instead of using ProductDatabaseInitializer I created my own database. And instead of using float data type for $$ fields I am using money. So in case you decide to do something similar and get the following error while submitting request to PayPal

10401 - Transaction refused because of an invalid argument. - ensure that you send to PayPal decimal values with 2 decimal points -www.youtube.com/

]]>Comment Posted by dizignit.jasonhttp://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalThu, 21 Feb 2013 00:53:04 GMT00000000-0000-0000-0000000018479This has been an awesome tutorial and I have had virtually zero issues up until now. I am able to add items and checkout. Once I put in my user credentials (both gmail and database) I get the following Parse error on the page Checkout/CheckoutStart.aspx.

Parser Error Message: 'WingTipToys.Checkout.CheckoutStart' is not allowed here because it does not extend class 'System.Web.UI.Page'.

Has anyone else had this problem?

]]>Comment Posted by gmadkins2http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalSun, 03 Mar 2013 16:19:22 GMT00000000-0000-0000-0000000018565Getting the same error as above.

You must provide a request body if you set ContentLength>0 or SendChunked==true. Do this by calling [Begin]GetRequestStream before [Begin]GetResponse.

]]>Comment Posted by gmadkins2http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalSun, 03 Mar 2013 16:29:51 GMT00000000-0000-0000-0000000018566Found the fix to the problem.

Need to set objRequest.SendChecked = false;

see code below.

HttpWebRequest objRequest = (HttpWebRequest)WebRequest.Create(url);

objRequest.Timeout = Timeout;

objRequest.Method = "POST";

objRequest.ContentLength = strPost.Length;

objRequest.SendChunked = false;

]]>Comment Posted by gmadkins2http://www.asp.net/web-forms/tutorials/aspnet-45/getting-started-with-aspnet-45-web-forms/checkout-and-payment-with-paypalSun, 03 Mar 2013 19:11:20 GMT00000000-0000-0000-0000000018567Disregard the previous post. I thought it fixed the issue. But it didn't. However the true exception is getting swallowed up by the exception handling. The true error is.

The remote name could not be resolved: 'api-3t.sandbox.paypal.com'

]]>