Data Presentation Controls

Re: Could not find a property named ... on the type specified by the DataObjectTypeName

RabidJay — Mon, 08 Jun 2009 20:34:47 GMT

In case anybody else runs into this for Update operations -

in stepping through the Update process (Listview EditItemTemplate) , the runtime instantiated my business object using it's default constructor even if I supplied a fully parameterized constructor, so it seems logical that, if you are passing a BO instance to the Update method you defined, it would need accessible BO properties with names that match those used when it first retrieved /bound the data.

ie - if it doesn't have a complete correct parameter list in the Update statement how else would it map the UI input to the update properties?

I haven't tried it, but I suspect that if you do specify a full parameter set in the update definition (jnstead of a BO instance) it would still need to know how to map the parameters to the properties and since you can't name them identically, perhaps positionally.

If I am wrong I am happy to learn :-)

Re: Could not find a property named ... on the type specified by the DataObjectTypeName

ionFreeman — Mon, 22 Dec 2008 05:32:58 GMT

I solved the problem by changing a publicly exposed variable to a property. That is, I had public String Path which is now protected String path public String Path{get{return path;}set{path=Value;}} hth Ion

Re: Could not find a property named ... on the type specified by the DataObjectTypeName

nevinph — Wed, 24 Sep 2008 10:09:22 GMT

im having the same problem too,, i also made a post regarding about this but sadly no one answered it yet.. im still finding a solution bout this im new still need to learn.. could someone please help..

Re: Could not find a property named ... on the type specified by the DataObjectTypeName

dennis82 — Mon, 08 Sep 2008 17:19:18 GMT

Hi I have got exactly the same problem... It is definately related to a wizzard in vs2005 /2....As you search for this problem half the Google searches come up with the same problem, this is an answer that works for some people, not for others. Sometimes you see a Microsoft 'pro' answer: Look at your coding! (which isn't realy helpful because the wizard produced it) with a reference to DataObjectName in the documentation. The problem is the Wizzard. I haven't been able to reproduce the problem in a steady fashion....One time it works ok straight out of the wizard and the other time not.

When I try to use your solution: delete the Datatypname, it gives me the "could not ind a non-generic method 'update' that has parameters: -followed by all the field names -

I have spent more than 6 hrs on this problem, and judging by the amount of messages about this subject on the web, hundreds of people with me!

Is there someone (it should be fixed by MS (but yeah...)) who has solved this problem? please????

Best regards and thanks in advance!

Dennis

Re: Could not find a property named ... on the type specified by the DataObjectTypeName

marsonj — Tue, 21 Aug 2007 22:53:54 GMT

Try:

Look at the properties for the ObjectDataSource and remove everything from DataObjectTypeName property and just leave that property blank; it will be RUN.
I hope this works for your ASP.NET 2.0 project on Microsoft Visual Studio 2005 Beta 2.0.

-- http://amastaneh.blogspot.com/2005/11/could-not-find-property.html

Could not find a property named ... on the type specified by the DataObjectTypeName

Idgaf — Thu, 06 Jul 2006 21:57:33 GMT

I created a new DataSet and dropped a SQL table on it which created a TableAdapter for "SELECT * FROM Table". I then added a single-row select query which accepts one parameter (the row guid).

Then, I added a GridView which shows all rows and a DetailsView for the selected row which all works fine except when I click Insert/Update/Delete on the DetailsView, I get something like "Could not find a property named 'Number' on the type specified by the DataObjectTypeName property in ObjectDataSource 'ObjectDataSource2'."

Any ideas?