c# RowPrePaint是不是死循环？如何解决？

Question

我在datagridview中根据数据显示不同的背景色；
 private void workBillDataGrid_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
        {
         DataGridViewRow dgr = workBillDataGrid.Rows[e.RowIndex];
            dgr.DefaultCellStyle.BackColor = Color.Orange;
            if (this.workBillDataGrid.Rows[e.RowIndex].Cells["passState"].Value.ToString() == "1")
            {
                              dgr.DefaultCellStyle.BackColor = Color.Orange;
            }
     }
但是好像感觉是死循环。放个messagebox也反复弹出来，请问如何解决？？

Answer 1

 private void workBillDataGrid_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
  {
      if (e.RowIndex >= workBillDataGrid.Rows.Count - 1)   
         return;    DataGridViewRow dgr = workBillDataGrid.Rows[e.RowIndex];
  dgr.DefaultCellStyle.BackColor = Color.Orange;
  if (this.workBillDataGrid.Rows[e.RowIndex].Cells["passState"].Value.ToString() == "1")
  {
  dgr.DefaultCellStyle.BackColor = Color.Orange;
  }
  }