Datagridview cellvalidating date
1) Add a conditional statement in the event handler code to only execute when required.
2) Detach the event hander before the unwanted event triggers and re-attach after.
If there are cells that you dont want to validate (eg read only cells) then add a check at the start of the event handler that will cause it to exit if it is trying to validate those cells.
For instance, if column with index 2 is read only and you dont want to validate cells in that column you could use: If you have attached an event handler to the Cell Validating event then it will always fire when focus leaves the cell.
Since you have not added your new row yet it should validate OK.
Or if not, then it is because the user has entered an invalid value in the current cell. Something there is causing the cell validating event to fire. [Edit] The validating event is firing because focus is being moved from the DGV to the button.
Data Grid View Cell Validating Event Args) _ Handles Data Grid View1. Formatted Value = "" Then Exit Sub End If Select Case e.
Critical) Exit Sub End Try End Select End Sub ǂA L̂悤ɃG[`Fb Ns Ã݂ZҏWԂőIׂ Data Grid View1.
Column Index = 1 Then If Not Is Date(Personnel_Status_Jo Veeam is happy to provide a free NFR license (for 1 year, up to 10 users).
This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations. Value end with it doesn't work .i got "invalid cast exception was unhandled" error for the second part of my question: The column idex for the status is 1 . for the current row the status is already seleceted..
-Date End 2binding source is in addnew mode so a new row is always standby say we have a status already store in our dataset and also a date begin after two months(for example) i need to change the status(that belongs to a person) when i am trying to change(update) the selectedindex of stauts in new row ,and i forgot to fill the date end (previous row) then i need the msg and the focus...
Validated events from occurring, and also prevents the user from leaving the invalid row and prevents the row from being saved to an external data source in data bound mode.
For more information about handling events, see NIB: Consuming Events.