it seems that the variable t refer to "System.Reflection.Assembly" not to the dll you want to instantiate. below is a simple sample code about...
you can instantiate a class dynamically based on string by using the Assembly class (System.Reflection.Assembly) here is a simple sample code...
you can use datagrid.currentcell property datagrid.CurrentCell = New DataGridCell(r, c) where r = index of the selected row and c = index of...
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