DataGridView1.CurrentRow.Cells(7).Value = DataGridView1.CurrentRow.Cells(3).Value.ToString - DataGridView1.CurrentRow.Cells(6).Value.ToString * DataGridView1.CurrentRow.Cells(5).Value.ToString
An exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll but was not handled in user code
Additional information: Conversion from string "۳۲۴۲" to type 'Double' is not valid.
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نویسنده: خنج