Rowupdating specified method is not supported

I think though using another Conflict Option work. One thing we do wrong is here: Command Builder.cs#L389 It should use a Npgsql Type Info that uses the exact same data type on the postgresql backend, and not the first best CLR type. I'm not sure what exactly changed from 2 to 3's parameter handling but the issue seems gone... I have 2 possible workarounds, and I want to know whether it is useful or not. Set All Values = true, if using Npgsql Data Adapter/Npgsql Command Builder.

Argument Exception HResult=-2147024809 Message=Type of value has a mismatch with column type Source=System. @p2 is now longer a timestamptz parameter, but an int4 parameter. update the parameter type) before the Value is changed, but after. NET thought creating parameter objects were expensive, they reuse the parameter objects from how the query looked before the change, i.e. But - when I have a row with some higher type, for e.g. I'm using Npgsql ( via Nu Get with Target Framework 4.5 But I also tried the Npgsql download version for and with 2.0 - same issue. Update From Data Table(Data Table data Table, Data Table Mapping table Mapping) at System. It's quite straight forward - and works well for the most primitive data types. Loading seems not to be the issue - the conversion from postgres to works fine - but on Update - the exceptions are thrown. NET applications rely on some degree of data presentation from a back-end data source.

Data-bound controls have been a pivotal part of interacting with data in dynamic Web applications. NET 2.0 introduces some substantial improvements to data-bound controls, including a new Base Data Bound Control class and declarative syntax. NET applications rely on some degree of data presentation from a back-end data source.

App Domain._n Execute Assembly(Runtime Assembly assembly, String[] args) at System. Execute Assembly(String assembly File, Evidence assembly Security, String[] args) at Microsoft. Instead we should lookup on the Schema Table Column. I also don't understand why we would like to set Source Column value to an empty string. Hello, I tried the new version 2.2.2 to see if my code work but still I have to come back to 2.1.3 (cast invalid excetion). If there's something absolutely preventing you from updating please let me know what it is. Parametrs collection, it changes to one modified field.

Main() in d:\Projects\Postgres Csharp\Postgres Csharp Tests\Postgres Csharp Tests\Program.cs:line 23 at System. For example, if the user has a column of type json, the CLR type for that is String, and the first best backend type for this is text. As 2.x is quite old by now, I really suggest you update to the latest 3.0.x - I'm definitely not going to have any time to fix this kind of bug in 2.x. (B) Tweak Npgsql according to pr #577, and also insert tricks at Row Updating.

One comment: you have set Use Preload to true in your connection string. Use Extended Types = false; the exception changes to: System.

This is a legacy feature and it's strongly recommended not to use it (it have been removed from the upcoming major version 3.0). Invalid Cast Exception occurred HResult=-2147467262 Message=Specified cast is not valid.

Exception: Thrown: "Die angegebene Umwandlung ist ungültig." (System. Invalid Cast Exception was thrown: "Die angegebene Umwandlung ist ungültig." Time: Thread:[5084] In the exception itself: When I use your example an exception on Date Time is thrown: An unhandled exception of type 'System. Additional information: Type of value has a mismatch with column type Couldn't store @digital-void, I'm using 2.2.0, which is the latest. Just to be absolutely sure, I created this failed repro commit on top of 2.2.0, with the timestamp_with_timezone column. Can you please try to run this specific unit test (not within your program) and confirm that on your setup produces an exception?