Microsoft Dynamics CRM (Archived)

Problem in using services related to Microsoft.Xrm.Client.dll in D365

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Posted on by Bhaargavi Bodapati

115

Hi,

I am unable to use the services that we retrieve from the "Microsoft.Xrm.Client.dll" in D365.

I have used Microsoft.Xrm.Tooling.Connector.dll instead of the above mentioned dll as it was not available in D365 SDK. But now i am facing the Error : while retrieving records "An exception of type 'System.NullReferenceException' occurred in Microsoft.Xrm.Tooling.Connector.dll but was not handled in user code"

Here is my piece of code. Any suggestions would be really helpful.

string connStr = ConfigurationManager.ConnectionStrings["Xrm"].ConnectionString;

using (CrmServiceClient service = new CrmServiceClient(connStr))
{
QueryExpression query = new QueryExpression();
query.EntityName = "account";
query.ColumnSet = new ColumnSet(new string[] { "name", "telephone1", "fax"});
query.Criteria.AddCondition(new ConditionExpression("name", ConditionOperator.NotNull));

EntityCollection accountRecord = service.RetrieveMultiple(query);

}

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RaviKashyap 55,410 Moderator on at

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Hi Bhaargavi,

You need to check if the service is ready.

Check the below links-

msdn.microsoft.com/.../dn688175.aspx

community.dynamics.com/.../simple-dynamics-crm-console-application

Here is a youtube video which you can refer-

www.youtube.com/watch

You may also want to check if you are using the connection string correctly-

msdn.microsoft.com/.../dn688177.aspx

Hope this helps.

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Bhaargavi Bodapati 115 on at

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Ravi, many thanks :)

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Aric Levin - MVP 30,190 Moderator on at

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Check your connection string:

You can use one of the following methods as well (added next to lines to verify connection is working):

CrmServiceClient conn = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient(connectionString);

_orgService = (IOrganizationService)conn.OrganizationWebProxyClient != null ? (IOrganizationService)conn.OrganizationWebProxyClient : (IOrganizationService)conn.OrganizationServiceProxy;

Guid userid = ((WhoAmIResponse)_orgService.Execute(new WhoAmIRequest())).UserId;

You can also use alternate method if that's not working:

string userName = ConfigurationManager.AppSettings["UserName"].ToString();

string password = ConfigurationManager.AppSettings["Password"].ToString();

string internalUrl = ConfigurationManager.AppSettings["InternalUrl"].ToString();

string orgName = ConfigurationManager.AppSettings["OrgName"].ToString();

NetworkCredential creds = new NetworkCredential(userName, ConvertToSecureString(password));

Microsoft.Xrm.Tooling.Connector.AuthenticationType authType = Microsoft.Xrm.Tooling.Connector.AuthenticationType.IFD;

CrmServiceClient conn = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient(creds, authType, internalUrl, "443", orgName, true, true, null);

// Cast the proxy client to the IOrganizationService interface.

_orgService = (IOrganizationService)conn.OrganizationWebProxyClient != null ? (IOrganizationService)conn.OrganizationWebProxyClient : (IOrganizationService)conn.OrganizationServiceProxy;

Guid userid = ((WhoAmIResponse)_orgService.Execute(new WhoAmIRequest())).UserId;

// ConvertToSecureString method from above.

private System.Security.SecureString ConvertToSecureString(string password)

{

if (password == null)

throw new ArgumentNullException("missing pwd");

var securePassword = new System.Security.SecureString();

foreach (char c in password)

securePassword.AppendChar(c);

securePassword.MakeReadOnly();

return securePassword;

}

Hope this helps.

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Community Member on at

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Hi Ravi, I am getting below error - an unhandled exception of type system.nullreferenceexception occurred in Microsoft.XRM.Tooling.Connector.dll

My code is -

string crmConnectionString = ConfigurationManager.AppSettings["CRMConnectionString"];

CrmServiceClient service = new CrmServiceClient(crmConnectionString);

WhoAmIResponse whoAmIResponse = (WhoAmIResponse)service.Execute(new WhoAmIRequest());

QueryExpression query_Contacts = new QueryExpression("contact");

query_Contacts.ColumnSet = new ColumnSet("Accountname", "Fullname");

EntityCollection coll_Contacts = service.RetrieveMultiple(query_Contacts);

Can you please help

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