public void Update(SysParam item)
{
if(item.ChangedPropertyCount>0)
{
StringBuilder sqlbuilder = new StringBuilder();
sqlbuilder.Append("UPDATE [SysParams] SET ");
Dictionary<string,string> cols =new Dictionary<string,string>();
cols.Add("ParamName","[ParamName]");
cols.Add("ParamValue","[ParamValue]");
cols.Add("Remark","[Remark]");
int i = 0;
//UPDATE COLUMNS
foreach (string p in item.ChangedPropertyList)
{
if(!cols.ContainsKey(p))
{
continue;
}
if (i > 0)
{
sqlbuilder.Append(",");
}
sqlbuilder.AppendFormat("{0}=@{1}", cols[p], p);
i++;
}
//WHERE;
sqlbuilder.Append(" WHERE [ParamCode]=@ParamCode");
List<SqlParameter> SPParams = new List<SqlParameter>();
SPParams.Add(new SqlParameter("@ParamCode",item.ParamCode));
if(item.IsChanged("ParamName"))
{
SPParams.Add(new SqlParameter("@ParamName",item.ParamName));
}
if(item.IsChanged("ParamValue"))
{
SPParams.Add(new SqlParameter("@ParamValue",item.ParamValue));
}
if(item.IsChanged("Remark"))
{
SPParams.Add(new SqlParameter("@Remark",item.Remark));
}
base.ExecuteNonQuery(sqlbuilder.ToString(), SPParams.ToArray());
}
}
public void Save(SysParam item)
{
if(item.IsNew)
{
Insert(item);
}
else
{
Update(item);
}
}
public void Insert(SysParam item)
{
string sql="INSERT INTO [SysParams] ([ParamCode],[ParamName],[ParamValue],[Remark]) VALUES (@ParamCode,@ParamName,@ParamValue,@Remark)";
List<SqlParameter> SPParams = new List<SqlParameter>();
SPParams.Add(new SqlParameter("@ParamCode",item.ParamCode));
SPParams.Add(new SqlParameter("@ParamName",item.ParamName));
SPParams.Add(new SqlParameter("@ParamValue",item.ParamValue));
SPParams.Add(new SqlParameter("@Remark",item.Remark));
base.ExecuteNonQuery(sql, SPParams.ToArray());
}
public List<SysParam> QueryAll()
{
string sql ="SELECT [ParamCode],[ParamName],[ParamValue],[Remark] FROM [SysParams]";
List<SysParam> list =new List<SysParam>();
using(IDataReader reader = base.ExcuteDataReader(sql))
{
while(reader.Read())
{
SysParam item =new SysParam();
item.ParamCode = reader.GetString(0);
if(!reader.IsDBNull(1))
{
item.ParamName = reader.GetString(1);
}
if(!reader.IsDBNull(2))
{
item.ParamValue = reader.GetString(2);
}
if(!reader.IsDBNull(3))
{
item.Remark = reader.GetString(3);
}
list.Add(item);
}
}
return list;
}
public SysParam Get(string key)
{
string sql = "SELECT [ParamCode],[ParamName],[ParamValue],[Remark] FROM [SysParams] WHERE [ParamCode]=@ParamCode";
SqlParameter p =new SqlParameter("@ParamCode",key);
SysParam item =null;
using(IDataReader reader = base.ExcuteDataReader(sql,p))
{
if(reader.Read())
{
item =new SysParam();
item.ParamCode = reader.GetString(0);
if(!reader.IsDBNull(1))
{
item.ParamName = reader.GetString(1);
}
if(!reader.IsDBNull(2))
{
item.ParamValue = reader.GetString(2);
}
if(!reader.IsDBNull(3))
{
item.Remark = reader.GetString(3);
}
}
}
return item;
}
