public IList <TEntity> GetModelInfoList(Expression <Func <TEntity, bool> > exp)
{
StringBuilder sb = new StringBuilder();
sb.Append("select * from ");
sb.Append(this.TableName);
sb.Append(" where ");
sb.Append(GetWhereStr(exp));
sb.Append(" order by ");
sb.Append(this.ColumInfo.Single(c => c.Value.IsSort).Value.Name);
sb.Append(" desc");
List <TEntity> list = new List <TEntity>();
using (SqlDataReader sr = SQLDbHelper.ExecuteReader(sb.ToString()))
{
while (sr.Read())
{
TEntity t = new TEntity();
PropertyInfo[] proarr = t.GetType().GetProperties().Where(p => this.ColumInfo.Where(c => c.Key == p.Name).Count() > 0).ToArray();
foreach (var item in proarr)
{
item.SetValue(t, sr[this.ColumInfo[item.Name].Name], null);
}
list.Add(t);
}
}
return(list);
}
public virtual TEntity GetModelInfoByKeys(string[] keys)
{
StringBuilder sb = new StringBuilder();
sb.Append("select * from ");
sb.Append(this.TableName);
sb.Append(" where ");
//找出主键字段，顺序对应keys的顺序
IEnumerable <KeyValuePair <string, ColumAttr> > tempkey = this.ColumInfo.Where(c => c.Value.IsPrim);
for (int i = 0; i < keys.Count(); i++)
{
sb.Append("[");
sb.Append(tempkey.ElementAt(i).Value.Name);
sb.Append("]='");
sb.Append(keys.ElementAt(i));
sb.Append("' and");
}
sb = sb.Remove(sb.Length - "and".Length, "and".Length);
TEntity t = new TEntity();
PropertyInfo[] proarr = t.GetType().GetProperties().Where(p => this.ColumInfo.Where(c => c.Key == p.Name).Count() > 0).ToArray();
using (SqlDataReader sr = SQLDbHelper.ExecuteReader(sb.ToString()))
{
if (sr.Read())
{
foreach (var item in proarr)
{
item.SetValue(t, sr[this.ColumInfo[item.Name].Name], null);
}
return(t);
}
}
return(null);
}
public virtual IList <TEntity> GetModelInfoList(Expression <Func <TEntity, bool> > exp, int pageszie, int currentindex)
{
StringBuilder sb = new StringBuilder();
sb.Append("select top ");
sb.Append(pageszie);
sb.Append(" * from (select *, row_number() over(order by [");
sb.Append(this.ColumInfo.First(c => c.Value.IsSort).Value.Name);
sb.Append("] desc) as ROW from ");
sb.Append(this.TableName);
sb.Append(")tempdb where tempdb.ROW>");
sb.Append((currentindex - 1) * pageszie);
sb.Append(" and ");
sb.Append(GetWhereStr(exp));
sb.Append(" order by ");
sb.Append(this.ColumInfo.Single(c => c.Value.IsSort).Value.Name);
sb.Append(" desc");
List <TEntity> list = new List <TEntity>();
using (SqlDataReader sr = SQLDbHelper.ExecuteReader(sb.ToString()))
{
while (sr.Read())
{
TEntity t = new TEntity();
PropertyInfo[] proarr = t.GetType().GetProperties().Where(p => this.ColumInfo.Where(c => c.Key == p.Name).Count() > 0).ToArray();
foreach (var item in proarr)
{
item.SetValue(t, sr[this.ColumInfo[item.Name].Name], null);
}
list.Add(t);
}
}
return(list);
}
