C datagridview rowvalidating event

event, which enables the control look up values in the data cache.Virtual mode is necessary only when you need to supplement or replace bound mode.

The following events occur only when the Virtual Mode property is set to Used by the control to commit user input for a cell to the data cache.The exception occurs when i try and access the datagridview.currentrow property in my rowvalidating event handler, or alternatively datagridview.rows(e.rowindex).void Validate Row(object sender, Data Grid View Cell Cancel Event Args e) { Data Grid View tmp DGV = ((Data Grid View)sender); try catch (Index Out Of Range Exception ex) If i debug this code and step through it i can see that when i have finished editing the new record and hit enter the row validating event handler fires. The row validating event handler then fires a second time and this is when the exception is thrown.For more information about using virtual mode in a just-in-time scenario, see Implementing Virtual Mode with Just-In-Time Data Loading in the Windows Forms Data Grid View Control.If your data is read-only, the event may be the only event you will need to handle.This event occurs only for cells in unbound columns.Call the Update Cell Value method when changing a cached value outside of a Cell Value Pushed event handler to ensure that the current value is displayed in the control and to apply any automatic sizing modes currently in effect..Call the Update Cell Error Text method or the Update Row Error Text method when you change the cell or row error text to ensure that the current value is displayed in the control.Cell and row error glyphs are displayed when the Show Cell Errors and Show Row Errors property values are Used by the control to retrieve or store row height information in the data cache.I have managed to narrow down the conditions that cause the error and it seems to surface if i have a filter set for a paricular column value.For example if I have a filter set to name = bob and attempt to add a row but specify name = bill i will get the Index Out Of Range Exception.

Leave a Reply

Your email address will not be published. Required fields are marked *

One thought on “c datagridview rowvalidating event”

  1. He takes sh**s, he f***s his old floppy wife, plays with his balls and judges my life." This was the first song that jumped out at me when I first listened to The Great Milenko. His rant is interrupted by his mom screaming, "Bryan!