Com Exception from .Net Application.

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  • =?Utf-8?B?a2FyaW0=?=
    #1

    Com Exception from .Net Application.

    Hi,

    My .Net application call a COM Class method. The signature of COm method is
    object get_Item(ref object Key);
    This method had defined in "NCR.APTRA.AXFS " namespace

    and I Have "formList" of Type "NCR.APTRA.AXFS .IXFSDictionary "

    Here i am getting an exception with the below statement
    NCR.APTRA.AXFS. XFSGenericPrint Form formObj =
    (NCR.APTRA.AXFS .XFSGenericPrin tForm)formList. get_Item(ref formNameObject) ;

    Exception Details:
    ===========
    Unable to cast COM object of type 'System.__ComOb ject' to interface type
    'NCR.APTRA.AXFS .XFSGenericPrin tForm'. This operation failed because the
    QueryInterface call on the COM component for the interface with IID
    '{B9EEACF8-6552-4E85-9069-D58160BC40FF}' failed due to the following error:
    No such interface supported (Exception from HRESULT: 0x80004002
    (E_NOINTERFACE) ).

    Please can anyone help me to resolve.

    Thanks & Regards,
    Karimulla.
    Tags: None
    • Aneesh Pulukkul [http://dotnet-revolutions.blogspo
      #2
      Re: Com Exception from .Net Application.

      On May 26, 8:41 pm, karim <ka...@discussi ons.microsoft.c omwrote:
      Hi,
      >
      My .Net application call a COM Class method. The signature of COm method is
      object get_Item(ref object Key);
      This method had defined in "NCR.APTRA.AXFS " namespace
      >
      and I Have "formList" of Type "NCR.APTRA.AXFS .IXFSDictionary "
      >
      Here i am getting an exception with the below statement
      NCR.APTRA.AXFS. XFSGenericPrint Form formObj =
      (NCR.APTRA.AXFS .XFSGenericPrin tForm)formList. get_Item(ref formNameObject) ;
      >
      Exception Details:
      ===========
      Unable to cast COM object of type 'System.__ComOb ject' to interface type
      'NCR.APTRA.AXFS .XFSGenericPrin tForm'. This operation failed because the
      QueryInterface call on the COM component for the interface with IID
      '{B9EEACF8-6552-4E85-9069-D58160BC40FF}' failed due to the following error:
      No such interface supported (Exception from HRESULT: 0x80004002
      (E_NOINTERFACE) ).
      >
      Please can anyone help me to resolve.
      >
      Thanks & Regards,
      Karimulla.
      NCR.APTRA.AXFS. XFSGenericPrint Form is a .Net type? If yes we can't
      cast to __ComObject. Else we can re-register the COM dll and try again.

        Comment

        • =?Utf-8?B?a2FyaW0=?=
          #3
          Re: Com Exception from .Net Application.

          Yes, NCR.APTRA.AXFS. XFSGenericPrint Form is a .Net type.
          Here the COM get_Item method has a return type Object, which i am capturing
          in .Net object of type "NCR.APTRA.AXFS .XFSGenericPrin tForm".
          Can you pls tell me how do we handle COM call from .Net application?

          Regards,
          Karimulla.

          "Aneesh Pulukkul [http://dotnet-revolutio" wrote:
          On May 26, 8:41 pm, karim <ka...@discussi ons.microsoft.c omwrote:
          Hi,

          My .Net application call a COM Class method. The signature of COm method is
          object get_Item(ref object Key);
          This method had defined in "NCR.APTRA.AXFS " namespace

          and I Have "formList" of Type "NCR.APTRA.AXFS .IXFSDictionary "

          Here i am getting an exception with the below statement
          NCR.APTRA.AXFS. XFSGenericPrint Form formObj =
          (NCR.APTRA.AXFS .XFSGenericPrin tForm)formList. get_Item(ref formNameObject) ;

          Exception Details:
          ===========
          Unable to cast COM object of type 'System.__ComOb ject' to interface type
          'NCR.APTRA.AXFS .XFSGenericPrin tForm'. This operation failed because the
          QueryInterface call on the COM component for the interface with IID
          '{B9EEACF8-6552-4E85-9069-D58160BC40FF}' failed due to the following error:
          No such interface supported (Exception from HRESULT: 0x80004002
          (E_NOINTERFACE) ).

          Please can anyone help me to resolve.

          Thanks & Regards,
          Karimulla.
          >
          NCR.APTRA.AXFS. XFSGenericPrint Form is a .Net type? If yes we can't
          cast to __ComObject. Else we can re-register the COM dll and try again.
          >

            Comment

            • Leon Lambert
              #4
              Re: Com Exception from .Net Application.

              The way i have my C# components use COM is by using the tlbimp.exe tool.
              It will generate a wrapper assemble for the COM component so I can just
              use it in C#. Search your help for tlbimp.exe for examples on how to use it.

              Hope this helps
              Leon Lambert

              karim wrote:
              Yes, NCR.APTRA.AXFS. XFSGenericPrint Form is a .Net type.
              Here the COM get_Item method has a return type Object, which i am capturing
              in .Net object of type "NCR.APTRA.AXFS .XFSGenericPrin tForm".
              Can you pls tell me how do we handle COM call from .Net application?
              >
              Regards,
              Karimulla.
              >
              "Aneesh Pulukkul [http://dotnet-revolutio" wrote:
              >
              >On May 26, 8:41 pm, karim <ka...@discussi ons.microsoft.c omwrote:
              >>Hi,
              >>>
              >>My .Net application call a COM Class method. The signature of COm method is
              >>object get_Item(ref object Key);
              >>This method had defined in "NCR.APTRA.AXFS " namespace
              >>>
              >>and I Have "formList" of Type "NCR.APTRA.AXFS .IXFSDictionary "
              >>>
              >>Here i am getting an exception with the below statement
              >>NCR.APTRA.AXF S.XFSGenericPri ntForm formObj =
              >>(NCR.APTRA.AX FS.XFSGenericPr intForm)formLis t.get_Item(ref formNameObject) ;
              >>>
              >>Exception Details:
              >>===========
              >>Unable to cast COM object of type 'System.__ComOb ject' to interface type
              >>'NCR.APTRA.AX FS.XFSGenericPr intForm'. This operation failed because the
              >>QueryInterfac e call on the COM component for the interface with IID
              >>'{B9EEACF8-6552-4E85-9069-D58160BC40FF}' failed due to the following error:
              >>No such interface supported (Exception from HRESULT: 0x80004002
              >>(E_NOINTERFAC E)).
              >>>
              >>Please can anyone help me to resolve.
              >>>
              >>Thanks & Regards,
              >>Karimulla.
              >NCR.APTRA.AXFS .XFSGenericPrin tForm is a .Net type? If yes we can't
              >cast to __ComObject. Else we can re-register the COM dll and try again.
              >>

                Comment

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