Hi,

I have a datagrid where I specify

 OnItemCommand="GridCmdHandler"

 AllowSorting="True" OnSortCommand="SortGrid" 



I also have a button column on the grid 

 ButtonType="PushButton"

 The problem is then when I click on a field to be

sorted the program dies because of 

System.InvalidCastException: Exception of type

System.InvalidCastException was thrown.



It appears that even though I specify a OnSortCommand

function the program goes to the  OnItemCommand

function where it gets caught up in this line of code

 

Button b = (Button) e.CommandSource;

(apparently the sort column headers are link buttons).



My questions are

1) why is the grid not going to the OnSortCommand

2) How do I get the button type from

DataGridCommandEventArgs at least this way I can

program around it.  I can't change my button column to

link buttons because netscape won't support it.



Tanks for your help

Elissa Setareh



P.S. I know the problem is not in the sort function

because it worked fine when the button column was a

link buttons.  





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