public void RemoveRow(int index)
{
if (index < 0 || index >= DataList.Count)
throw new IndexOutOfRangeException(string.Format("所提供的的索引超出了行数的范围，当前共{0}行", DataList.Count.ToString()));
DataList.RemoveAt(index);
int len = 0;
if (PositionMapping.ContainsKey(index + 1))
{
len = PositionMapping[index + 1] - PositionMapping[index];
TableBuilder.Remove(PositionMapping[index], len);
var keys=PositionMapping.Keys.ToList();
foreach (int i in keys)
{
if (PositionMapping.ContainsKey(i + 1))
{
PositionMapping[i] = PositionMapping[i + 1] - len;
}
}
PositionMapping.Remove(DataList.Count);
}
else
{
len = TableBuilder.Length - PositionMapping[index] - 1;
TableBuilder.Remove(PositionMapping[index], len);
PositionMapping.Remove(index);
}
if (Index >= DataList.Count)
Index = DataList.Count - 1;
}