CRM 4.0 (Titan) Server-Side programming: Creating custom ASPX pages and consuming Titan’s Web-Services

I'm doing several Titan labs (CRM 4.0 labs), so I'm going to write a posting about what I'm doing. It is always interesting archiving this kind of 'HOW TOs'. 

So!, I'm gonna create a plain new custom ASPX page (using Visual Studio 2005) where we're going to allow updates to several custom entities I've got.

The business purpose for this page would be allowing week & hours for time entry related to projects, etc. The business purpose is not the important point in this case. What I want to show is how to create a custom ASPX that access and updates into CRM-Titan.

First step: Creating the ASPX Page

In order to create an ASPX page, we open VS.2005 and we create a new Web-Site (normal stuff in VS.2005). I prefer doing it in C#. J

So, within the ‘default.aspx’ page we add two combo-boxes, one for companies and another one for projects. We also add a Table, and within that table we add several labels and textbox controls which represent current week and hours for time entry.  

The ASPX design-time (in Visual Studio 2005) would be something similar to the following:

And the HTML and Web-controls tags (ASPX code) would be something like:

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<html xmlns="" >

<head runat="server">

    <title>CDLTLL - My custom ASPX page</title>



    <form id="form1" runat="server">


             <asp:Label ID="Label1" runat="server" Font-Bold="True" Text="Organizations"></asp:Label><br />

             <asp:DropDownList ID="ddlOrganizations" runat="server" Width="200px">

             </asp:DropDownList><br />

             <br />

             <asp:Label ID="Label2" runat="server" Font-Bold="True" Text="Projects"></asp:Label><br />

             <asp:DropDownList ID="ddlProjects" runat="server" Width="200px">

             </asp:DropDownList><br />

             <br />

             <asp:Table ID="tblTimeEntries" runat="server">

                    <asp:TableRow ID="TableRow1" runat="server">

                <asp:TableCell ID="Mon" runat="server"></asp:TableCell>

                <asp:TableCell ID="Tue" runat="server"></asp:TableCell>

                <asp:TableCell ID="Wed" runat="server"></asp:TableCell>

                <asp:TableCell ID="Thu" runat="server"></asp:TableCell>

                <asp:TableCell ID="Fri" runat="server"></asp:TableCell>          



             <asp:TableRow ID="TableRow2" runat="server">

                <asp:TableCell><asp:TextBox ID="Mon_Hours" runat="server" Width="20"></asp:TextBox></asp:TableCell>

                <asp:TableCell><asp:TextBox ID="Tue_Hours" runat="server" Width="20"></asp:TextBox></asp:TableCell>

                <asp:TableCell><asp:TextBox ID="Wed_Hours" runat="server" Width="20"></asp:TextBox></asp:TableCell>

                <asp:TableCell><asp:TextBox ID="Thu_Hours" runat="server" Width="20"></asp:TextBox></asp:TableCell>

                <asp:TableCell><asp:TextBox ID="Fri_Hours" runat="server" Width="20"></asp:TextBox></asp:TableCell>          




             &nbsp;&nbsp;<br />

             <asp:Button ID="btnOK" runat="server" Text="OK" /></div>




So far, this is plain ASPX code, nothing about CRM-Titan, yet.

Second step: Adding CRM-Titan Web-Service References

No we start the fun part, let’s add some CRM-Titan Web-References into our WebSite project!! J

OK, first, we add a web reference to the CrmDiscoveryService (the one with AD authentication, there is another one for Passport authentication aa well as SPLA for custom forms authentication), so the URL we have to use is the following:


The ‘Add Web Reference’ window would be like:


So, what is new in this CrmDiscoveryService?. Because of CRM-Titan provides now Multi-Tenancy (Multi-Tenancy: A single CRM server could be servicing multiple business organizations), before calling the real ‘data-web-service’, we need to know which web-service we have to use. I mean, since each CRM server may be serving a call for a different organization each time, the web services must be notified of the target organization a user is intending to reach. So this CrmDiscoveryService Web-Service allows to query all the CRM organizations on the server as well as instantiate CrmTicket credentials to allow requests for specific organizations.

Now, we add another web reference for the updated CrmService, which has the following URL:



So we have added references to the required CRM-Titan web-services using Windows integrated security for authentication.

Third step: Writing C# Code-Behind accessing Titan’s WebServices

Now, we add some C# code within the ASPX page ‘code-behind’.

BTW, whenever you see a prefix like ‘cdltll_’ into my code, it is the CRM prefix that CRM internally concatenates to every schema name (for columns, entities, etc.). By default, CRM adds the prefix ‘new_’ but I prefer changing it to my own prefix (From CRM à Settings à Org.Settings à System Settings à Customization à Prefix), which could be you company’s initials or in my case, are my own initials (CDLTLLà Cesar De La Torre Llorente). J

So!, first interesting code would be when we want to connect and get all the available organizations and loading the that list within the ‘Organizations’ Combo-box. To do so, we should call the CrmDiscoveryService coding something like the following:

//Instantiate web-service proxy class

CrmDiscoveryService.CrmDiscoveryService discoveryService =

                                             new CrmDiscoveryService.CrmDiscoveryService();

//Provide current Windows/AD Credentials

discoveryService.Credentials = System.Net.CredentialCache.DefaultCredentials;


//Configure what we want to request

RetrieveOrganizationsRequest orgsRequest = new RetrieveOrganizationsRequest();


//Make request for organization information

RetrieveOrganizationsResponse orgsResponse =



//Loop to populate the organizations

Likewise, if we want to get the ‘project list’ (from my project custom entity), it would be something like:

CrmService.CrmAuthenticationToken token = new CrmAuthenticationToken();

token.OrganizationName = "My Organization’s Name";


CrmService.CrmService crmService = new CrmService.CrmService();

crmService.Credentials = System.Net.CredentialCache.DefaultCredentials;

crmService.CrmAuthenticationTokenValue = token;


QueryByAttribute query = new QueryByAttribute();

ColumnSet cols = new ColumnSet();

cols.Attributes = new string[] { "cdltll_projectid", "cdltll_name" };


query.ColumnSet = cols;

query.EntityName = EntityName.cdltll_project.ToString();

query.Attributes = new string[] { "ownerid" };


WhoAmIRequest userRequest = new WhoAmIRequest();

WhoAmIResponse user = (WhoAmIResponse)crmService.Execute(userRequest);


// The logged on users userid

query.Values = new object[] { user.UserId.ToString() };


BusinessEntityCollection retrievedProjects = crmService.RetrieveMultiple(query);


//Loop to populate the projects

So, with kind of this code run within my Page_Load() method, I could get data in my ASP.NET page, like you can see down below:


Then, we can take the numbers/hours provided into the timesheet text-boxes (we should type it first, of course. ;-)), and update my custom entity called ‘Timesheet’.

Basically, we should write this code for updating against CRM-Titan Web-Service:

// Instantiate a new timesheet entity

cdltll_timesheet timesheet = new cdltll_timesheet();


timesheet.cdltll_datesubmitted = new CrmDateTime();

timesheet.cdltll_datesubmitted.Value = DateTime.Now.ToShortDateString();


timesheet.cdltll_day1 = new CrmNumber();

timesheet.cdltll_day1.Value = Convert.ToInt32(Mon_Hours.Text);


timesheet.cdltll_day2 = new CrmNumber();

timesheet.cdltll_day2.Value = Convert.ToInt32(Tue_Hours.Text);


timesheet.cdltll_day3 = new CrmNumber();

timesheet.cdltll_day3.Value = Convert.ToInt32(Wed_Hours.Text);


timesheet.cdltll_day4 = new CrmNumber();

timesheet.cdltll_day4.Value = Convert.ToInt32(Thu_Hours.Text);


timesheet.cdltll_day5 = new CrmNumber();

timesheet.cdltll_day5.Value = Convert.ToInt32(Fri_Hours.Text);


// Set the current weeks Monday

timesheet.cdltll_startdate = new CrmDateTime();


timesheet.cdltll_projectid = new Lookup();

timesheet.cdltll_projectid.Value = new Guid(ddlProjects.SelectedValue);


timesheet.cdltll_name = ddlProjects.SelectedItem.Text + " - Timesheet submitted for " + timesheet.cdltll_startdate.Value.ToString();



//Create de Web-Service objet-proxy

CrmService.CrmAuthenticationToken token = new CrmAuthenticationToken();

token.OrganizationName = "My Organization’s Name";

CrmService.CrmService crmService = new CrmService.CrmService();

crmService.Credentials = System.Net.CredentialCache.DefaultCredentials;

crmService.CrmAuthenticationTokenValue = token;


//Create/Update the TimeSheet within CRM-Titan

Guid timeSheetId = crmService.Create(timesheet);

So after updating, let’s say this hours (8,8,8,8,7), if we enter into CRM-Titan client, we can see it already updated!! J

 If anybody wants the whole ASP.NET page and project, just write on a comment on this posting, OK?. 🙂

--> Updated. Due to many requests, I have uploaded the source code within this post. Keep in mind this code was developed while CRM 4.0 was in BETA state. Several points could have changed.

05 ASP.NET Accessing CRM4 Web

Comments (20)

  1. says:

    Hi there,

    Could i please have the sample source code for this solution.

    I an quite new to the custom aspx pages and this lookes like a good example to start on.



  2. harish kumar gola says:

    It’s a nice code.It’s usable to every one those are using CRM.

  3. iulium says:


    I am just starting learning CRM 4.0 Webservice.  Would you mind sending the whole example.

    Thanks you.


  4. arunvinoth says:

    hi caesar

    i faced an error..

    it says

    "The request failed with HTTP status 401: Unauthorized."

    while trying to execute RetrieveMultiple() or Execute() methods..

    any guess..

    thanx in advance for help..

  5. kriss123 says:


    Please send me the ASP.NET page and project.



  6. karisma says:


    I’m interested in the project files to learn using the webservices.

    Would you mind sending the ASP.NET page and project…


  7. Hi,

    Please send me the ASP.NET page and project.



  8. kellysg says:


    Just starting out and your sample is very helpful – can I have the ASP.NET page and project please.


  9. lawrenceong says:

    hi Cesar,

    Is it possible to send me the page?



  10. MaartenK says:


    Just like everybody, I’m interested too in the project files to learn using the webservices.

    Thanx in advance

  11. jhumphrey says:


    I am also just starting out learning the CRM Titan Webservice.  Would you mind sending the code along to me if it is still available.

    Thanks you.


  12. apirani says:


    I am trying to create a few custom pages, that would be used by both on-premise and IFD type installation. However, before I can set CrmAuthenticationToken.token to AD or SPLA, I need to first know on what kind of CRM 4.0 installation is my ASPX running. Whether it is on-premise or IFD.

    Is there any way that we can find out installation type of MS CRM 4.0 in our custom aspx pages?



  13. anguyen206 says:

    Hi, I’m just starting out on CRM 4.0 aspx custom app pages too and was wondering you still have the source available for this blog? Thanks

  14. das_351984 says:

    Hi Cesar ,

    Thanks a lot for sharing this sample.

    Please send this Sample ans also the Installation process of CRM 4.0.

    I am getting errors while installing.



  15. sylvia malinga says:

    Hi there

    Would you please forward me the sourcecode for the sample, I just like the example.


  16. Thandiwe says:

    Hi there,

    I’ve been testing the custom code that you’ve written, i wondering if you supply me with the whole ASP.NET page and project.


  17. Hi Bjorn!

    About CRM 4.0 being off-line, it is almost the same, as Outlook CRM 4.0 client supports CRM 4.0 web services. What it is using is a mini local Web-Server (Cassini Web Server installed in client PC, like the one you can use with Visual Studio), so when your App detects it is off-line, it executes local Web-Services.

  18. says:


    How does this sample handles the Outlookclient being offline?



  19. says:


    Great and simple example.

    Sourcecode for the sample would be nice. ?



  20. marco's blog says:

    Adding Titan Web-Service References

Skip to main content