Rowvalidating cancel

How do I determine if the user has moved to the new record row of a Data Grid View in VB 2010? Dave The problem with using the Select Ion Changed event is that it is raised whenever a cell is selected or unselected, i.e.

Auto Size Columns Mode = Data Grid View Auto Size Columns Mode. ntal Scroll Bar和Vertical Scroll Bar属性显示。 Scroll Bar控件直接访问这些让你拥有滚动更好的控制。 5.5.3滚动属性 有许多的属性,提供更大的详细程度如何设??

Now if a row is on edit mode, I must prevent users from leaving the current row.

Upon clicking save button, I have to check if there are any conflicts and if there are I display those in another datagridview. This applies to both the Validating event and the Row Validating event. Meyers-Jouan" id="ctl00_m_m_i_ctl00_gr_ctl03_bestanswerbody" class="textarea-bestanswerhidden" name="bestanswerbody" answerbody Id="4411186" / I've tried using a messagebox to know if the user wants to leave the edit mode..

If your grid is bound, you should do so via a Binding Source, in which case you can handle the Current Changed event of the Binding Source. Thanks for the tip about the Binding Source Current Changed event. Null Reference Exception was unhandled by user code Can you shed any light on why? Dave If you get a Null Reference Exception then that means that something that precedes a dot is Nothing.

I did not realize that the Data Grid View Selection Changed event fired when you changed cells also. On that line, that can only be 'my Data Grid View' or 'my Data Grid View. If it's the former then that would only happen if it was in an event handler that was executed during the initialisation of the form and before the Data Grid View is created.

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