Datagridview cell validating cancel sql updating table variable
It seems that once the user enters any character, I'm sunk. Value (If it's not Value, it's something similar, not at my dev machine at the moment, so pardon me - can't test :) ). Value I put that in a button on the form, and entered some data, and then set the value. ) I changed that and I was able to trap the value properly, but I am unable to set e. So, I re-wrote my test to allow an empty string ("") - something like Is Date(e. Formatted Value) "" But then of course the Data Grid View went crazy because it would not recognize and empty string as a valid date, so I changed my SQL code to cast date fields as Char types to trick the Datagrid View.
I'm using a Data Grid View in my Win Forms application. Process Dialog Key(key Data) End Function No, but you can manually fire the Cell Validating event. All events are is a class using the Observer Pattern, they're no different than any other method.
I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. I guess the experts are laughing at me, but I'm not the least bit impressed with
Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S. I've put in over 8 hours just trying to validate a stupid cell on a Data Grid View. :) :) Thanks for your help, I'll happily give you the points.
The only problem I am having at the moment is figuring out exactly which cell we're coming from (validating), since the currentcell is the cell we're moving to. Value End If This SHOULD work, but I'm so busy at the moment I haven't tested it... Value But returns an error stating that this is a read-only value.
Let me know what you use for a datasource (If it is not Datarows; i.e., a dataset, datatable, dataview), then we may need to add some logic if your using objects. OK, what I have done is to create a dynamic SQL string and then bound it to the datagrid as shown below. Value Then ' The row was originally Null, so we can set the row to null. I know it works in VB 1.1, so it should work fine in 2.0, as I didn't get any "underlines" in my code :) Please let me know, Jake ource, dgv Top. Thanks again, I just can't believe that this is so very difficult, seems like it should be a common, simple situation that many developers run across.
Currently, I'm just manually calling my validation logic before I call End Edit, but it seems like I'm missing something.