We fill all of our DataGridViews programmatically. In a number of cases, I retrieve a value from some of the cells of the DataGridView immediately after populating it - before it is actually shown to the user. In 6.3.15, I would sometimes use the following code to retrieve the value:
Dim strValue as String = DataGridView1("FieldName", 1).Value.ToString
In .NetHTML 6.4 Beta2b, this doesn't work if the DataGridView has more than 2 rows and you are attempting to retrieve the value from a row with an index greater than 1. I get the following error message:
"Specified argument was out of the range of valid values. Parameter name: rowIndex"
If you attempt to retrieve the cell value after the populated DataGridView is shown to the user, the error doesn't occur. It only occurs if you attempt to get the value immediately after populating the grid.
Dave (VS 2010, VB, .NetHTML 6.4 Beta2b)