/// <summary>
/// 更新一条数据
/// </summary>
public void Update(RestaurantMIS.Model.CaiDan model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update CaiDan set ");
if (model.Category != null)
{
strSql.Append("Category='" + model.Category + "',");
}
if (model.Name != null)
{
strSql.Append("Name='" + model.Name + "',");
}
strSql.Append("Price=" + model.Price + ",");
if (model.LogDate != null)
{
strSql.Append("LogDate='" + model.LogDate + "',");
}
int n = strSql.ToString().LastIndexOf(",");
strSql.Remove(n, 1);
strSql.Append(" where ID=" + model.ID + " ");
DbHelperOleDb.ExecuteSql(strSql.ToString());
}
/// <summary>
/// 增加一条数据
/// </summary>
public void Add(RestaurantMIS.Model.CaiDan model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into CaiDan(");
strSql.Append("[Category],[Name],[Price],[LogDate])");
strSql.Append(" values (");
strSql.Append("@Category,@Name,@Price,@LogDate)");
OleDbParameter[] parameters =
{
new OleDbParameter("@Category", OleDbType.VarChar, 255),
new OleDbParameter("@Name", OleDbType.VarChar, 255),
new OleDbParameter("@Price", OleDbType.Decimal),
new OleDbParameter("@LogDate", OleDbType.Date)
};
parameters[0].Value = model.Category;
parameters[1].Value = model.Name;
parameters[2].Value = model.Price;
parameters[3].Value = model.LogDate;
DbHelperOleDb.ExecuteSql(strSql.ToString(), parameters);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public RestaurantMIS.Model.CaiDan GetModel(int ID)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select ID,Category,Name,Price,LogDate from CaiDan ");
strSql.Append(" where ID=@ID ");
OleDbParameter[] parameters =
{
new OleDbParameter("@ID", OleDbType.Integer, 4)
};
parameters[0].Value = ID;
RestaurantMIS.Model.CaiDan model = new RestaurantMIS.Model.CaiDan();
DataSet ds = DbHelperOleDb.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["ID"].ToString() != "")
{
model.ID = int.Parse(ds.Tables[0].Rows[0]["ID"].ToString());
}
model.Category = ds.Tables[0].Rows[0]["Category"].ToString();
model.Name = ds.Tables[0].Rows[0]["Name"].ToString();
if (ds.Tables[0].Rows[0]["Price"].ToString() != "")
{
model.Price = decimal.Parse(ds.Tables[0].Rows[0]["Price"].ToString());
}
if (ds.Tables[0].Rows[0]["LogDate"].ToString() != "")
{
model.LogDate = DateTime.Parse(ds.Tables[0].Rows[0]["LogDate"].ToString());
}
return(model);
}
else
{
return(null);
}
}
