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Mayur's Blog - Thursday, May 14, 2015
# Thursday, May 14, 2015

Recently I was working on CRM Dynamics migration where the system was upgraded to the latest version for CRM Dynamics Online. CRM should be using claims based authentication as I was trying to authenticate against my Office 365 account.

I had latest 2015 SDK and trying to utilize early bound approach to integrate in-house applications to CRM Dynamics Online.

Things were okay until I found that the application was throwing an error while saving the context. Ironically, the application was able to generate service proxy with provided Id and Password. It was failing only when I tried saving the context.

I started looking around in SDK where there are many samples given. I figured that unless I specify correct Device credentials the system continued rejecting the request due authentication error mentioned above.

I put in the following code to generate proxy by referring SDK

  IServiceManagement<IOrganizationService> orgServiceManagement =



                    var clientCredentials = crmConnection.ClientCredentials;

                    var authCredentials = new AuthenticationCredentials();

                    authCredentials.ClientCredentials = clientCredentials;

                    authCredentials.SupportingCredentials = new AuthenticationCredentials();

                    authCredentials.SupportingCredentials.ClientCredentials = Microsoft.Crm.Services.Utility.DeviceIdManager.LoadOrRegisterDevice();                   

                    AuthenticationCredentials tokenCredentials = orgServiceManagement.Authenticate(authCredentials);

                    var organizationTokenResponse =



                    return proxy = new OrganizationServiceProxy(orgServiceManagement, organizationTokenResponse); 

It should be noted that this code base should use the connection string specified in "developer resource" tab available when you log in to your CRM account.

If you have set up something similar mentioned above and facing similar issues then you should try using device credentials.

Thursday, May 14, 2015 9:23:34 PM UTC  #       | 
# Sunday, April 13, 2014

In case if you are still not aware then it is good to know that SAP Crystal Report is now supporting Visual Studio 2013. You may be able to download it from here. 

Please make sure that you run Exe to integrate it with VS. Running MSI should not do it properly. MSI installs runtime but not integrate it with VS.

Sunday, April 13, 2014 6:22:28 PM UTC  #       | 
# Thursday, November 15, 2012

I am putting together a code snnipet which you can use to create an extended method for any controller in Asp.Net MVC. This method can look into the views, add in model to the views and send a btye stream with application content of PDF type. As all modern browser can understand this type of byte stream, these browsers are able to read the byte stream and show the PDF in browser window.

In your base controller add in the following method. You inherit other controllers from this base controller

public PDFContentResult RenderPDFUsingHTML(string viewName, object model)


StringWriter sw = new StringWriter();

RazorViewEngine rv = new RazorViewEngine();

ViewEngineResult vr = rv.FindPartialView(this.ControllerContext, viewName, false);

ViewData.Model = model;

ViewContext vc = new ViewContext(this.ControllerContext, vr.View, ViewData, TempData, sw);

vr.View.Render(vc, sw);

string s = sw.GetStringBuilder().ToString();

/*I am using iTextSharpt to convert raw html into PDF. The following GetHTMLToPDFBytes(s) is implementation of itextSharp. You can also use anyother utility to convet html string into PDF.*/

byte[] pdfByes = GetHTMLToPDFBytes(s);

/*PDFContentResult is a custom ActionResult type. See the following code snippet for the details*/

return new PDFContentResult(pdfByes, "application/pdf");



public class PDFContentResult : ActionResult


private readonly string contentType;

private readonly byte[] contentBytes;

public PDFContentResult(byte[] contentBytes, string contentType)


this.contentBytes = contentBytes;

this.contentType = contentType;


public override void ExecuteResult(ControllerContext context)


var response = context.HttpContext.Response;



response.ContentType = this.contentType;

using (var stream = new MemoryStream(this.contentBytes))







Code snippet is self explantory. RenderPDFUsingHTML takes name of view and model as argumets of the method signature. It tries to find out required RazorView based on the given view name, once it is found it inserts the model data to it. Once this is done, it converts the view (raw html) to string, sends this string to iTextSharp to build byte array of PDF.

To make things sipmpler it returns PDFContentResult which is cutom ActionResult type. This is responsible to create a required http response with byte array added to it.

You do the following in your controller to get PDF. Make sure that you first inherit your controller with base controller where you put in the above code snippet. 

public ActionResult GetMyPDF(MyModel model)


..... do coding ...... for controller ........

return RenderPDFUsingHTML("MyViewName",model)


It is good practice to create another view, which is a simplified version of the original view. Generally the views, which we use for web sites are little complicated as it holds html control such as buttons, dropdown menus, and javaScripts etc. We really do not show them in PDF reports. So the simplified veiw takes the same model but removes not needed javaScripts and other html controls.

Thursday, November 15, 2012 6:07:46 PM UTC  #       | 
# Wednesday, October 31, 2012

Today I wondered why the values inserted by jQuery date picker were not properly parsed by default ASP.NET MVC model binder. I discovered that date picker was following US format (mm/dd/yyyy); however, model binder was following the UK format (dd/mm/yyyy).

I thought to override the model binder for dateTime type. Then I thought it may be too much work and there has to be some easier way. I started looking into ASP.NET MVC web.config structure and found that I could specify the current culture.

I added the following <globalization> element to the <system.web></system.web>






It solved my problem and model binder was able to parse the date picker's value and model was properly filled in with required dateTime values.

Wednesday, October 31, 2012 10:44:23 PM UTC  #       | 
# Wednesday, September 28, 2011

Nice article regarding HttpContext. Very useful if you are looking forward to know where to use Application_BeginRequest event available in the Global file

protected void Application_BeginRequest(Object sender, EventArgs e)

Refer this link:

Happy Coding!

Wednesday, September 28, 2011 2:31:47 PM UTC  #       | 
# Saturday, September 24, 2011

If you every wonder about the VIEWSTATE especially in terms of its security, then this may be a good article

Please have a look. I'm sure there is a lot to learn from here.

Saturday, September 24, 2011 2:16:23 PM UTC  #       | 
# Tuesday, August 23, 2011

I converted my web application from .NET 3.5 to .NET 4.0 and ported it to IIS 7.0. All of a sudden the AutoComplete Extender stopped working.

After some research I found that my web.config file needed the followings:



<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>

<add name="ScriptResource" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>



I added these handlers and the AutoComplete Extneder was back to work.

Hope this may help others to solve the similar problems.

Happy coding to everyone !!

Tuesday, August 23, 2011 7:00:46 AM UTC  #       | 
# Monday, August 31, 2009

Many times we need to refresh/reload a parent window with respect to events associated on child window. For example,

1. Parent web page shows values from database.

2. An end user presses a button on the parent window. It pops up a new child windows; where the end user enters new values for database records

3. The end user presses submit button on child window. It processes code behind and updates database and closes child window after showing a relavant message.

In this situation it is a good idea to refresh the parent web page as soon as the child page is closed. This way the data on parent web page are get refreshed and the end user can get confirmation of recent chages.

The following small javaScript code will help you to achieve that.

<script type ="text/javascript" >

function refreshAPage() {


window.opener.location.href = window.opener.location.href;

//OR window.opener.location.href="URL";



Monday, August 31, 2009 11:14:59 PM UTC  #       | 
# Friday, June 26, 2009

If you are struggling with above mentioned errors and have already gone through your web.config file. Also repaired/installed .NET framework (any version) with service pack (any version). Also tried with repairing/installing ajax toolkit (any version). And still not getting rid of these errors then you might want to try the following. It worked for me!

My local machine worked very well when I was developing an ajax enalbed web site. However, as soon as I put it on production server (Win Server 2003, IIS 6.0 with .NET Framework 3.5 and service pack 1), it started showing errors: Ajax client-side framework failed to load, 'Sys' is undefined etc. However, web site worked but Ajax functionality never worked.

After long effort and going through various docs. I found that I needed to add .axd file extension mapping on IIS. So on my IIS manager I right clicked on my web site; then on the dialogue box I clicked on virtual directory and then clicked on "Configuration" button. On the new dialogue box I clicke on "Add" and tried to add .axd extension which points to the aspnet_isapi.dll. The following is locaton of DLL on my machine. So I added the following path and clicked "OK"


And guess what the result was. The great relief! I spent more than 5 hours. However, at the end of the day I was happy that my ajax enalbed web site was up and running.

I am posting it here and hoping that it might help someone who is facing similar problems.

Have a great computing!

Friday, June 26, 2009 7:43:03 PM UTC  #       | 
# Monday, May 11, 2009
No Table!, No Label!.

A new approach to generate dynamic drop down menu with only span, div and CSS. Of course JavaScript handles all events. (there are other menus out there; ASP.NET has its own built in menu, however, this is my own, no copy and no paste from others, no copyright infringements)

Within few days I will adorn it with VS 2008's built in Ajax Toolkit! Ahh... looking for that, can't wait

Visit here

Monday, May 11, 2009 8:53:46 AM UTC  #       | 
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