// 计算当前数值的状态信息
private CExDataGridView.EDataState GetDataStatus(CEntityRealTime entity)
{
// 看是否设定最大值，以及最小值，还有变化值之类的东东啦
// CExDataGridView.EDataState state = CExDataGridView.EDataState.ENormal;
// TimeSpan span = entity.TimeReceived - entity.TimeDeviceGained;
// int offset = Math.Abs(span.Minutes);
// if (offset > 5 && offset < 10)
// {
// state = CExDataGridView.EDataState.EWarning;
// }
// else if (offset > 10)
// {
// state = CExDataGridView.EDataState.EError;
// }
// return state;
CExDataGridView.EDataState state = GetDataStatus(entity.TimeDeviceGained);
if (state == EDataState.ENormal)
{
// 只有没超时的时候，才会显示实时数据的状态
switch (entity.ERTDState)
{
case ERTDDataState.EError: state = CExDataGridView.EDataState.EPink; break;
case ERTDDataState.ENormal: state = CExDataGridView.EDataState.ENormal; break;
case ERTDDataState.EWarning: state = CExDataGridView.EDataState.EWarning; break;
}
}
return(state);
}
protected virtual void ExCellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (!m_mutexDataTable.WaitOne(0))
{
// 表示当前正在后台更新数据，暂时不更新界面消息
return;
}
//m_mutex.WaitOne();
if (e.RowIndex < 0)
{
return;
}
try
{
//Debug.WriteLine("cell format...{0}-{1}",e.RowIndex,e.ColumnIndex);
DataGridViewRow CurrentRow = this.Rows[e.RowIndex];
CurrentRow.HeaderCell.Value = Convert.ToString(e.RowIndex + 1 + (m_iCurrentPage - 1) * m_iPageRowCount);//显示行号，也可以设置成显示其他信息
// 此时保证枚举前面没有 手动改变枚举的值
CExDataGridView.EDataState state =
(CExDataGridView.EDataState)Int32.Parse(CurrentRow.Cells[m_arrayStrHeader.Length].Value.ToString());
switch (state)
{
case EDataState.ENormal:
{
if (e.RowIndex % 2 == 1)
{
// 浅绿
this.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.BackColor = Color.FromArgb(248, 255, 255);
}
} break;
case EDataState.EWarning:
{
// 警告
this.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.BackColor = Color.Yellow;
} break;
case EDataState.EError:
{
// 错误
this.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.BackColor = Color.Red;
//this.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.Font = new System.Drawing.Font("Arial", 10);
} break;
case EDataState.EDeleted:
{
// 被标记为删除
this.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.Gray;
//this.Rows[e.RowIndex].Cells[e.ColumnIndex].Style.Font = new System.Drawing.Font("Arial", 10);
} break;
case EDataState.EPink:
{
// 实时数据中标记为越界显示
this.Rows[e.RowIndex].DefaultCellStyle.BackColor = Color.FromArgb(255, 128, 255);
} break;
}//switch
// 释放互斥量，表示后台可以更新数据了
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
finally
{
m_mutexDataTable.ReleaseMutex();
}
}
