InvalidOperationException in ReportItem.set_RenderingInfo

I have an exception being thrown during the set_RenderingInfo call as show
in the following stack trace:
Operation is not valid due to the current state of the object.
at
Microsoft.ReportingServices.ReportRendering.ReportItem.set_RenderingInfo(Object
value)
at
Exony.ReportingServices.Rendering.RenderingProviders.HtmlRenderingFactory.PreRender(RenderContext
context, ReportItem item) in
c:\dev\source\reporting\main\app\exony.reportingservices.rendering\renderingproviders\htmlrenderingfactory.cs:line
75
I really need to understand why this is happening and how I can avoid it so
looking at the code I expect the bit in question (inside the
ReportItem.set_RenderingInfo function) is:
if (!this.m_renderingContext.InPageSection)
{
if (this.m_intUniqueName == 0)
{
throw new InvalidOperationException();
}
}
What is m_intUniqueName for and what is causing it to be '0'?
Many thanks,
James SnapeHi James,
Thanks for your email.
I have noticed you are developing your won rendering extension.
UniqueName is A string that uniquely identifies this report item
ReportItem
UniqueName=0 means it is not initilized correctly due to some issues when
contrsucting.
Constructors for all subtypes of ReportItem require two arguments: Name
(String) and UniqueName (String). These properties cannot be set after the
report item is created.
Since customized rendering extension is not officially support at present,
I would like to introduce you to the CSS Advisory Services team.
Advisory Services is a remotely delivered, hourly fee-based, consultative
support option that provides a comprehensive result beyond your break-fix
product maintenance needs. It is an hourly fee-based, consultative
support option that provides proactive support beyond your break-fix
product maintenance needs. This support option includes working with the
same technician for assistance with issues like product migration, code
review, or new program development.
For more info in the US and Canada:
http://support.microsoft.com/default.aspx?pr=AdvisoryService
Outside of the US/Canada:
http://support.microsoft.com/default.aspx?scid=%2finternational.aspx
Sincerely yours,
Michael Cheng
Microsoft Online Partner Support
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=====================================================This posting is provided "AS IS" with no warranties, and confers no rights.|||Hi Michael,
I am writing a rendering extension because our customers have decided they
don't like the default HTML rendering that comes with Reporting Services.
Regarding rendering extensions being unsupported, can you point me to the
EULA or other document that states this because reporting services books
online seems to suggest it is a standard part of the product
(ms-help://MS.RSBOL80.1033/RSPROG/htm/rsp_prog_extend_security_87oi.htm). It
does mention that the documentation is not yet available but not that it is
unsupported.
The advisory services seems a little expensive to ask a question of plus I
can't see that it's available outside the US.
Thanks in advance,
James Snape|||Hi James,
Thanks for your email.
Since we do not have much documents / references on hand about rendering
extension either, we do not support custom rendering extension in SQL
Server 2005.
If you want the the support for this, I recommend that you open a support
incident with Microsoft Customer Service and Support (CSS) so that a
dedicated Support Professional can work with you in a more timely and
efficient manner and contact development team much closer. If you need any
help in this regard, please let me know.
For a complete list of Microsoft Customer Service and Support phone
numbers, please go to the following address on the World Wide Web:
<http://support.microsoft.com/directory/overview.asp>
If you are outside the US please see http://support.microsoft.com for
regional support phone numbers.
Thank you for your patience and cooperation. If you have any questions or
concerns, don't hesitate to let me know. We are always here to be of
assistance!
Sincerely yours,
Michael Cheng
Microsoft Online Partner Support
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
=====================================================This posting is provided "AS IS" with no warranties, and confers no rights.