datagrid problem

Question

I have a datagrid in my application and it gives me an error if i try to delete everything in the table(only if there is a null value on the very bottom row of the table. I get a nullreferenceexception and I dont know where it occurs. It seems to happen within the function of the datagrid itself(possible bug). Any help is appreciated. Thanks

slzr6a · Answer

I am just entering a bunch of data then selecting everything starting at the bottom(it only happins if I start at the bottom and select everything). I press delete key and I get the error. Is there any way to override the action taken when the delete key is pressed? If I could do that I could solve my problem.

Andrzej Wegierski · Answer

What kind of deletion are You using? mydatatable.Clear(); -or- for(int row=last;row>=0;row--) mydatatable.Rows[row].Delete(); they're proper. Next is improper with Your error: foreach(DataRow dr in mydatatable.Rows) dr.Delete();

robin 0 · Answer

if you are trying to delete everything from underlaying DataTable or DataSource object - then try befor deletion un-bind dataGrid and underlaying object. Or try another deletion mechanism - lock data object delete all and then add one empty row to make this object not null - unlock object.