/// <summary>
/// 返回影响的行数
/// </summary>
/// <returns></returns>
public int ExecuteNonQuery(IDbTransaction trans = null)
{
if (_dbQueryables.Count != 1)
{
throw new XfwException("Only one 'IDbQueryable' accept.");
}
try
{
List <string> sqlList = this.Resolve(false);
return(_provider.ExecuteNonQuery(sqlList[0], trans));
}
catch
{
if (trans != null)
{
trans.Rollback();
}
throw;
}
finally
{
this.Dispose();
}
}