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The Row Updating event occurs when an Update method is called before a command executed against the data source.The Row Updated event occurs when a command executed.The visitors to a web site can typically be divided into two groups: the users and the administrators.
The Grid View does know the events that should be used to implement them, so the exceptions shown above are thrown when you try to perform one of these operations, but you have implemented the appropriate event handler.
The example shown here is for a Grid View, but the same types of event handlers must be implemented in roughly the same way for other data controls including the Form View, Details View, and List View. This is the final Grid View markup, so you can see the event handlers we’re going to implement.
NET 2.0 most of the examples and tutorials deal with setting the Data Source ID, which buys you a lot of automation that you may not even appreciate unless you’ve done this the old fashioned way.
In this example, we’ll go through a fully featured Grid View with editing, deleting, selecting, sorting, and paging functionality that is manually bound and identify the limitations and some of the workarounds. Sql Data Source, Object Data Source, Linq Data Source, etc) specified in a Data Source ID, the Grid View can automate many functions because, through the data source control, the Grid View on its own can perform the following operations: When you manually bind data to a Grid View, the Grid View itself cannot perform these operations, so they must be implemented in your code.
Specifying a json or xml field as part of the table indeed triggers an error, but it's a backend 42804 error because npgsql sends values as text. However, it doesn't look like what you got, and moreover I can see no issue when inserting timestamps (with timezone or otherwise). Sorry that it took some time to write back - my internet connection was (is) down - I've got to work via mobile...