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https://social.msdn.microsoft.com/Forums/silverlight/en-US/0d9616af-1bb1-4c2f-b293-87e23aa92a1a/this-entityset-of-type-does-not-support-the-add-operation
The projections to the client are well but when I try to add some new columns on the client I get the message: "This EntitySet of type 'Primavera.Athena.QueryBuilder.Model.QueryModel.Column' does not support the 'Add' operation."
https://stackoverflow.com/questions/2445634/ria-services-entityset-does-not-support-edit-operation
RIA Services EntitySet does not support 'Edit' operation. Ask Question ... This EntitySet of type 'Culture' does not support the 'Edit' operation. I thought that i did something weird and tried to create an object of type Culture and assign a value to it: it worked well! ... problem editing entity. 1. Silverlight using WCF Ria with POCOS gives ...
https://social.msdn.microsoft.com/Forums/silverlight/en-US/d65def2c-1014-42cb-80e1-83321858ced8/this-entityset-of-type-does-not-support-the-add-operation
I know I have to implement the Add operation for the new Entity I'm putting, but how can I do that? I mean I did the class, the get method but how do I do the insert operation, I can't see my class in this.ObjectContext, so to whom I would be adding this new object, I have the next fragments of ... · Well I'm not entirely clear on what you are trying ...
https://social.msdn.microsoft.com/Forums/en-US/f964dd1e-d58c-4b81-8ba3-7c8ad6b08ba1/this-entityset-of-type-xx-does-not-support-the-add-operation
Mar 31, 2010 · This EntitySet of type 'xx' does not support the 'Add' operation. ... The generated code throws the exception since you're missing the insert method for the entity you try to add. It won't be sent over the wire until you do the SubmitChanges on the domainservice. Thursday, April 1, 2010 8:04 AM.
https://social.msdn.microsoft.com/forums/silverlight/en-US/b5766aef-a31c-4025-b676-52b8bfd0f3ea/this-entityset-of-type-user-does-not-support-the-edit-operation
Apr 18, 2011 · [uodate] attribute has to be there in place of [invoke], if you call the submitChanges() then the update method will be executed automatically.
https://p2p.wrox.com/book-silverlight-4-problem-design-solution/80065-entity-does-not-support-edit-operation.html
Oct 14, 2010 · Entity does not support EDIT operation?? User Name ... This EntitySet of type 'FitnessTrackerPlus.Web.Data.UserInformation' does not support the 'Edit' operation. I get this here. ... there was a breaking change in the latest RIA Services bits that requires these methods be declared otherwise the entity will not support updates. If you add the ...
https://elanderson.net/2017/04/entity-framework-core-with-sqlite-migration-limitations/
Apr 23, 2017 · Entity Framework Core with SQLite Entity Framework Core Errors Using Add-Migration Entity Framework Core with SQLite Scaffolding. The starting point of the code for this post can be found here. Migration Limitations when using SQLite. SQLite’s ALTER TABLE is limited which in turn
https://developer.salesforce.com/forums/?id=906F000000099ZNIAY
Oct 10, 2013 · INVALID_TYPE_FOR_OPERATION: entity type ActivityHistory does not support query So I've created an controller extension and have added a visualforce page to my account layout. It all works fine and dandy except for a few accounts I get this error: " Content cannot be displayed: INVALID_TYPE_FOR_OPERATION: entity type ActivityHistory does not ...
https://stackoverflow.com/questions/19325473/ef6-0-the-relationship-could-not-be-changed-because-one-or-more-of-the-foreign
"The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set to a null value. ... This comment made me think and helped me to fix the issue: context.Set<T>.Remove(entity) is preferred when the entity was loaded from this ...
https://docs.microsoft.com/en-us/ef/core/miscellaneous/connection-resiliency
By default, the execution strategy will retry the operation as if the transaction was rolled back, but if it's not the case this will result in an exception if the new database state is incompatible or could lead to data corruption if the operation does not rely on a particular state, for example when inserting a new row with auto-generated key ...
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