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Dynamics 365 Community / Forums / Microsoft Dynamics CRM (Archived) / How to write orderby c...
Microsoft Dynamics CRM (Archived)

How to write orderby clause using linq query and also using queryexpression class.

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Posted on by EmployeeOcta 6

Hi All,

   I am having the trouble in below lines of code 

var res = (from c in orgContext.CreateQuery("contact")
join a in orgContext.CreateQuery("annotation") on c["contactid"] equals a["objectid"]
where (bool)a["isdocument"] == true && (int)a["objecttypecode"] == GetObjectTypeCode("contact")
orderby(a["createdon"]) descending
select new
{
GUID = c["contactid"],
FirstName=c["firstname"]
}).Take(5).Distinct();

I have use the orderby clause here showing as above , But it's throwing an error.

Can anybody help me , how to resolve this issue.

and also i want to use the oderby in queryexpression class in c# application. 

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I have the same question (0)
  • Suggested answer
    ScottDurow Profile Picture
    ScottDurow 21 on at

    Try changing it to to orderby a["createdon"]

    - no brackets or space

    What is the error that is being thrown?

    The QueryExpresion has an Orders property - see msdn.microsoft.com/.../microsoft.xrm.sdk.query.queryexpression.orders.aspx

    Hope this helps,

    Scott

  • Suggested answer
    Hamzeh Zawahreh Profile Picture
    Hamzeh Zawahreh 3,674 on at

    Hi check this link

    msdn.microsoft.com/.../gg309256.aspx

  • EmployeeOcta Profile Picture
    EmployeeOcta 6 on at

    Hi Scott Durow ,

    I have tried with  the your suggestion but it's still throwing the same error.

    An unhandled exception of type 'System.NotSupportedException' occurred in Microsoft.Xrm.Sdk.dll

    Additional information: The 'orderBy' expression is limited to invoking the 'c' parameter.

    The below is my detail query

    var res = (from c in orgContext.CreateQuery("contact")

                              join a in orgContext.CreateQuery("annotation") on c["contactid"] equals a["objectid"]

                              where (bool)a["isdocument"] == true && (int)a["objecttypecode"] == GetObjectTypeCode("contact")

                              orderby a["createdon"]

                              select new

                              {

                                  GUID = c["contactid"],

                                  FirstName=c["firstname"]

                              }).Take(5).Distinct();

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