system.argumentnullexception value cannot be null. parameter name device credentials

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Posted on by yosra.walid

Hello,

i have a code to get an organization with online and on premise parametres

with onpremise , the program work fine but when i choose online deployment i get the error " system.argumentnullexception value cannot be null. parameter name device credentials"

this is my code

 public static List<string> GetOrganizations(ConnectionParams connectionParams)
        {

            ClientCredentials userCredentials = new ClientCredentials();
            userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential();

            List<string> orgNames = new List<string>();
            switch (connectionParams.Deployment)
            {
                case DeploymentTypes.OnPremise:
                    if (connectionParams.UseDefaultCredentials)
                    {
                        userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential();
                    }
                    else
                    {
                        userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential(connectionParams.UserName, connectionParams.Password, connectionParams.Domain);
                      
                    }

                    break;
                case DeploymentTypes.Online:                                        
                    userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential(connectionParams.UserName, connectionParams.Password);
                    break;
                default:
                    break;
            }



            DiscoveryServiceProxy discoveryProxy = new DiscoveryServiceProxy(new Uri(connectionParams.DiscoveryUrl), null, userCredentials, null);
            discoveryProxy.Authenticate();

            RetrieveOrganizationsRequest retrieveOrganizationsRequest = new RetrieveOrganizationsRequest();
            RetrieveOrganizationsResponse retrieveOrganizationsResponse = discoveryProxy.Execute(retrieveOrganizationsRequest) as RetrieveOrganizationsResponse;
            if (retrieveOrganizationsResponse.Details.Count != 0)
            {
                foreach (OrganizationDetail orgInfo in retrieveOrganizationsResponse.Details)
                    orgNames.Add(orgInfo.UrlName);
            }
return orgNames; 
}

Thanks for your help

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Mahadeo Matre 17,021 on at

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Check these links might be helpful

blogs.msdn.com/.../crm-2011-sdk-error-while-using-the-create-method-system-argumentnullexception-value-cannot-be-null.aspx

nishantrana.me/.../value-cannot-be-null-parameter-name-value-error-in-crm-2011

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Mahendar Pal 45,095 on at

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Hello,

You are getting this error because while connecting to CRM online you need to pass device credentials as well with your valid crm user credentials. You can use Device manager class that comes with Ms CRM SDK to register your device and get it's credentials.

Please check this sample for your reference: msdn.microsoft.com/.../hh670628.aspx

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yosra.walid on at

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Thanks for your answers

must i work with device credentials ?

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yosra.walid on at

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This function is to get Organization so the in this function idon't have the uri of organization so how i can work with device credentials and i work with windows form application

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Mahendar Pal 45,095 on at

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You can use like below

// Create and configure the Discovery Service web service
ClientCredentials deviceCreds = DeviceIdManager.LoadOrRegisterDevice();

//Create discovery service proxy
DiscoveryServiceProxy _discovery =
new DiscoveryServiceProxy(new Uri("https://disco.crm5.dynamics.com/XRMServices/2011/Discovery.svc"), null, _Credentials, deviceCreds);

You need to include deviceidmanager class in your solution, you can get this class from SDK under SDK\SampleCode\CS\HelperCode localtion

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yosra.walid on at

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Thank you for your answer,

after i work with deviceidmanager class and i use ClientCredentials deviceCreds = DeviceIdManager.LoadOrRegisterDevice(); in my code

i get this error " the username is not provided specify a username in the client credentials"

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yosra.walid on at

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Even i add this code to my function but still show me the error

this is my code

public static List<string> GetOrganizations(ConnectionParams connectionParams)

{

ClientCredentials userCredentials = new ClientCredentials();

userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential();

ClientCredentials deviceCreds = new ClientCredentials();

deviceCreds.Windows.ClientCredential = new System.Net.NetworkCredential();

deviceCreds = DeviceIdManager.LoadOrRegisterDevice();

List<string> orgNames = new List<string>();

switch (connectionParams.Deployment)

{

case DeploymentTypes.OnPremise:

if (connectionParams.UseDefaultCredentials)

{

userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential();

}

else

{

userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential(connectionParams.UserName, connectionParams.Password, connectionParams.Domain);

}

break;

case DeploymentTypes.Online:

{

userCredentials.Windows.ClientCredential = new System.Net.NetworkCredential(connectionParams.UserName, connectionParams.Password);

deviceCreds.Windows.ClientCredential = new System.Net.NetworkCredential(connectionParams.UserName, connectionParams.Password);

}

break;

default:

break;

}

DiscoveryServiceProxy discoveryProxy = new DiscoveryServiceProxy(new Uri(connectionParams.DiscoveryUrl), null, userCredentials, deviceCreds);

discoveryProxy.Authenticate();

RetrieveOrganizationsRequest retrieveOrganizationsRequest = new RetrieveOrganizationsRequest();

RetrieveOrganizationsResponse retrieveOrganizationsResponse = discoveryProxy.Execute(retrieveOrganizationsRequest) as RetrieveOrganizationsResponse;

if (retrieveOrganizationsResponse.Details.Count != 0)

{

foreach (OrganizationDetail orgInfo in retrieveOrganizationsResponse.Details)

orgNames.Add(orgInfo.UrlName);

}

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yosra.walid on at

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I can't work with the simple connexion , iwork with a big project with windows forms application for client and i must respect the procedure of the methode ,

the methode is the getOrganization

and for the DeviceCredentials i connect with office 365 authentification and always i have the error system.invalidoperationexception the username is not provided. specify username in clientcredentials even i specifier the username

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