__t=bb99626d24&value=1" class="" Thank you for sample! With Win Forms, using your sample, if you move the focus to the new row and back to a data row, every time the new row gets the focus it adds a new row to the data source , and then removes it when losing the focus.
When a database receives a SQL statement, it determines if the statement has already been executed and stored in memory.There are two different scenarios that you may or may not want to handle when dealing with data source changes: Changes to the list of items and changes in the bound properties in each of the data objects.How to handle them may vary, depending on what you're doing and what you're looking to accomplish, but WPF comes with two very easy solutions that you can use: The Observable Collection and the INotify Property Changed interface.What we need is a list that notifies any destinations of changes to its content, and fortunately, WPF provides a type of list that will do just that. It must be something simple and stupid on my part, but I've put too much time into fixing nonproblems so far. Everything looks correct to me and I'm at my whits end on this problem.
If the statement does exist in memory, Oracle Database can reuse it and skip the task of parsing and optimizing the statement.