They occur when the new content entered by the user is about to be committed.Currently the validation occurs on row and cell level.If the focus is moved to a cell in another row, then both Row Validating and Row Validated are fired, containing the whole row data, including the new and the old values of the edited cells.Both Cell Validating and Row Validating events allow you to stop the commit process by setting the boolean property Is Valid to False.For more information about handling events, see NIB: Consuming Events.On Cell Formatting Cell Parsing Data Grid View Class System. By default, the Data Grid View control will attempt to convert a cell's value into a format suitable for display.
To customize the conversion of a formatted, user-specified value into an actual cell value, handle the Cell Parsing event.Cell Validating gives you the power to stop the commit process on a cell level obeying some internal rules of your application. To String()) If new Value And here is how the error message is displayed: The Cell Validated event occurs when the cell has validated the new content.For example, a cell might contain only values between 0 and 12, and all other values are considered invalid. Unique Name = "Country Id" Then Dim new Value As Integer = Int32. It is raised after the Cell Validating event (when the Is Valid is not set to False), described in the previous section.One of the most important features provided by Rad Grid View is the data validation.Data validation features enable you to take complete control of the data entered in your grid's cells. This is the validation that is built into the business object implementation.