Exchange Service Provider

[Vic]

I am trying to use the Exchange connection to display a calendar within a web-based application and the Exchange Service provider works great if I am defining a user with their username and password but how do I make it work if I have access to another users account using my credentials?

[Peter]

Hello Vic,

You can set the credential dynamically in Page_Init:

protected void Page_Init(object sender, EventArgs e) {
     ExchangeSchedulerProvider provider =
     new ExchangeSchedulerProvider("https:.../Exchange.asmx", "user_name", "pass_word", "domain_name");
     RadScheduler1.Provider = provider;
}

There is a sample you can download from this forum thread -
http://www.telerik.com/community/forums/aspnet-ajax/scheduler/could-not-load-type-telerik-web-examples-scheduler-exchangeschedulerprovider.aspx#1725277

I hope this helps.

Kind regards,
Peter
the Telerik team

[Vic]

But what about using a master account that has permissions to multiple accounts? I want to use a single account to login so I don't need each users password.

[Peter]

Hi Vic,

The ExchangeSchedulerProvider has the following contructors:


/// <summary>

       /// Initializes a new instance of the <see cref="ExchangeSchedulerProvider"/> class.

       /// </summary>

       /// <param name="serverUrl">The exchange web service end-point URL. For example "http://dc1.litwareinc.com/EWS/Exchange.asmx".</param>

       /// <param name="username">The username to use for authentication.</param>

       /// <param name="password">The password to use for authentication.</param>

       /// <param name="domain">The domain name to use for authentication.</param>

       public ExchangeSchedulerProvider(string serverUrl, string username, string password, string domain)

           : this()

       {

           ServerUrl = serverUrl;

           Username = username;

           Password = password;

           Domain = domain;

       }

 

       /// <summary>

       /// Initializes a new instance of the <see cref="ExchangeSchedulerProvider"/> class.

       /// </summary>

       /// <param name="serverUrl">The exchange web service end-point URL. For example "http://dc1.litwareinc.com/EWS/Exchange.asmx".</param>

       /// <param name="credentials">Network credentials to use when connecting to the server.</param>

       public ExchangeSchedulerProvider(string serverUrl, NetworkCredential credentials)

           : this()

       {

           ServerUrl = serverUrl;

           Credentials = credentials;

       }

 

       /// <summary>

       /// Initializes a new instance of the <see cref="ExchangeSchedulerProvider"/> class.

       /// </summary>

       public ExchangeSchedulerProvider()

       {

 

       }

Could you please try using the second one which uses network credentials and let me know if this helps?

Greetings,
Peter
the Telerik team

[Vic]

when i connect programmatically it doesn't connect - i get a 401 unauthorized error.  but when i use the web.config it connects to whatever mailbox i define there.

[Vic]

What would cause me to get a "The request failed with HTTP status 401: Unauthorized." error when setting the provider declaratively:

Dim Credentials As New Net.NetworkCredential("username", "password", "domain")

        Dim ExchangeSchedulerProvider As New ExchangeSchedulerProvider("https://exchangeserver/EWS/Exchange.asmx", Credentials)

        RadScheduler1.Provider = ExchangeSchedulerProvider

But when I set it via web.config - it connects fine...

[Vic]

It seems like initialize in the exchangeservice provider is never called when set declaratively and thus it never really authenticates

[Vic]

If i do not authenticate with the "network credentials", it works...

[Peter]

Hello Vic,

Can you make sure you set the provider dynamically in the Page_Init event?

Kind regards,
Peter
the Telerik team

[Betina]

Hi

I am having the excact same problem now, I try to set the provider with my networkcredentials in Page_Init but gets an 401 error, is there a solution?

I have updated my controls but that did not resolve the issue.

[Peter]

Hello Betina,

We could never manage to replicate this problem locally so I am not sure what could be causing it. If you can open a support ticket and attach a sample of the issue there, we will look into it and hopefully find a solution.

Greetings,
Peter
the Telerik team

[Betina]

I havent much to send but my code are:

    Dim esb As New ExchangeServiceBinding()
    esb.Url = "https://OurExchangeServer/EWS/Exchange.asmx"
    Dim crd As New NetworkCredential("MyUSer", "MyPassword", "MyDomain")
    esb.Credentials = crd

    RadScheduler1.Provider = New ExchangeSchedulerProvider("https://OurExchangeServer/EWS/Exchange.asmx", crd)

[Peter]

Hi Betina,

Thank you for the additional information. We will let you know if we discover something of interest regarding this case.

Kind regards,
Peter
the Telerik team