/// <summary>
/// 得到一个对象实体
/// </summary>
public Model.Customer GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder();
Model.Customer model = new Model.Customer();
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
foreach (PropertyInfo p in pros)
{
str1.Append(p.Name + ",");//拼接字段
}
strSql.Append("select top 1 " + str1.ToString().Trim(','));
strSql.Append(" from MS_Customer");
strSql.Append(" where c_id=@id");
SqlParameter[] parameters =
{
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters[0].Value = id;
DataTable dt = DbHelperSQL.Query(strSql.ToString(), parameters).Tables[0];
if (dt.Rows.Count > 0)
{
return(DataRowToModel(dt.Rows[0]));
}
else
{
return(null);
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(Model.Customer model, SqlConnection conn = null, SqlTransaction tran = null)
{
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder();
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
List <SqlParameter> paras = new List <SqlParameter>();
strSql.Append("update MS_Customer set ");
foreach (PropertyInfo pi in pros)
{
//如果不是主键则追加sql字符串
if (!pi.Name.Equals("c_id"))
{
//判断属性值是否为空
if (pi.GetValue(model, null) != null)
{
str1.Append(pi.Name + "=@" + pi.Name + ","); //声明参数
paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
}
}
}
strSql.Append(str1.ToString().Trim(','));
strSql.Append(" where c_id=@id ");
paras.Add(new SqlParameter("@id", model.c_id));
if (tran == null)
{
return(DbHelperSQL.ExecuteSql(strSql.ToString(), paras.ToArray()) > 0);
}
else
{
return(DbHelperSQL.ExecuteSql(conn, tran, strSql.ToString(), paras.ToArray()) > 0);
}
}
/// <summary>
/// 将对象转换实体
/// </summary>
public Model.Customer DataRowToModel(DataRow row)
{
Model.Customer model = new Model.Customer();
if (row != null)
{
//利用反射获得属性的所有公共属性
Type modelType = model.GetType();
for (int i = 0; i < row.Table.Columns.Count; i++)
{
//查找实体是否存在列表相同的公共属性
PropertyInfo proInfo = modelType.GetProperty(row.Table.Columns[i].ColumnName);
if (proInfo != null && row[i] != DBNull.Value)
{
proInfo.SetValue(model, row[i], null);//用索引值设置属性值
}
}
}
return(model);
}
public string insertData(Model.Customer model, Model.Contacts contact, SqlConnection conn, SqlTransaction trans, out int cid)
{
cid = 0;
DataSet ds = null;
#region 组织客户表添加语句
StringBuilder strSql = new StringBuilder();
StringBuilder str1 = new StringBuilder(); //数据字段
StringBuilder str2 = new StringBuilder(); //数据参数
//利用反射获得属性的所有公共属性
PropertyInfo[] pros = model.GetType().GetProperties();
List <SqlParameter> paras = new List <SqlParameter>();
strSql.Append("insert into MS_Customer(");
foreach (PropertyInfo pi in pros)
{
//如果不是主键则追加sql字符串
if (!pi.Name.Equals("c_id"))
{
//判断属性值是否为空
if (pi.GetValue(model, null) != null)
{
str1.Append(pi.Name + ","); //拼接字段
str2.Append("@" + pi.Name + ","); //声明参数
paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
}
}
}
strSql.Append(str1.ToString().Trim(','));
strSql.Append(") values (");
strSql.Append(str2.ToString().Trim(','));
strSql.Append(") ");
strSql.Append(";select @@IDENTITY;");
#endregion
#region 添加客户==========================
int obj = 0;
obj = Convert.ToInt32(DbHelperSQL.GetSingle(conn, trans, strSql.ToString(), paras.ToArray()));//带事务
#endregion
#region 添加联系人======================
if (obj > 0)
{
//检查联系人号码是否与其他客户的联系人号码一样
if (model.c_type != 2)
{
string sql = "select * from MS_customer c left join MS_contacts co on c.c_id = co.co_cid where c.c_type<>2 and co.co_number='" + contact.co_number + "'";
ds = DbHelperSQL.Query(conn, trans, sql);
if (ds != null && ds.Tables[0].Rows.Count > 0)
{
return("客户【" + ds.Tables[0].Rows[0]["c_name"] + "】，联系人【" + ds.Tables[0].Rows[0]["co_name"] + "】的联系号码也是【" + contact.co_number + "】，请查实：是否为同一客户！");
}
}
cid = obj;
contact.co_cid = obj;
int oobj = new DAL.Contacts().Add(contact, conn, trans);
if (oobj > 0)
{
return("");
}
}
#endregion
return("添加失败");
}