protected void btnSave_Click(object sender, EventArgs e)
{
string strErr = "";
if (!PageValidate.IsDateTime(txtOrderDate.Text))
{
strErr += "OrderDate格式错误！\\n";
}
if (!PageValidate.IsNumber(txtUserId.Text))
{
strErr += "UserId格式错误！\\n";
}
if (!PageValidate.IsDecimal(txtTotalPrice.Text))
{
strErr += "TotalPrice格式错误！\\n";
}
if (strErr != "")
{
MessageBox.Show(this, strErr);
return;
}
DateTime OrderDate = DateTime.Parse(this.txtOrderDate.Text);
int UserId = int.Parse(this.txtUserId.Text);
decimal TotalPrice = decimal.Parse(this.txtTotalPrice.Text);
OLBookstore.Model.Orders model = new OLBookstore.Model.Orders();
model.OrderDate = OrderDate;
model.UserId = UserId;
model.TotalPrice = TotalPrice;
OLBookstore.BLL.OrdersManager bll = new OLBookstore.BLL.OrdersManager();
bll.Add(model);
Maticsoft.Common.MessageBox.ShowAndRedirect(this, "保存成功！", "add.aspx");
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(OLBookstore.Model.Orders model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Orders set ");
strSql.Append("OrderDate=@OrderDate,");
strSql.Append("UserId=@UserId,");
strSql.Append("TotalPrice=@TotalPrice");
strSql.Append(" where Id=@Id");
SqlParameter[] parameters =
{
new SqlParameter("@OrderDate", SqlDbType.DateTime),
new SqlParameter("@UserId", SqlDbType.Int, 4),
new SqlParameter("@TotalPrice", SqlDbType.Money, 8),
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = model.OrderDate;
parameters[1].Value = model.UserId;
parameters[2].Value = model.TotalPrice;
parameters[3].Value = model.Id;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public int Add(OLBookstore.Model.Orders model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Orders(");
strSql.Append("OrderDate,UserId,TotalPrice)");
strSql.Append(" values (");
strSql.Append("@OrderDate,@UserId,@TotalPrice)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@OrderDate", SqlDbType.DateTime),
new SqlParameter("@UserId", SqlDbType.Int,4),
new SqlParameter("@TotalPrice", SqlDbType.Money, 8)
};
parameters[0].Value = model.OrderDate;
parameters[1].Value = model.UserId;
parameters[2].Value = model.TotalPrice;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
private void ShowInfo(int Id)
{
OLBookstore.BLL.OrdersManager bll = new OLBookstore.BLL.OrdersManager();
OLBookstore.Model.Orders model = bll.GetModel(Id);
this.lblId.Text = model.Id.ToString();
this.lblOrderDate.Text = model.OrderDate.ToString();
this.lblUserId.Text = model.UserId.ToString();
this.lblTotalPrice.Text = model.TotalPrice.ToString();
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public OLBookstore.Model.Orders DataRowToModel(DataRow row)
{
OLBookstore.Model.Orders model = new OLBookstore.Model.Orders();
if (row != null)
{
if (row["Id"] != null && row["Id"].ToString() != "")
{
model.Id = int.Parse(row["Id"].ToString());
}
if (row["OrderDate"] != null && row["OrderDate"].ToString() != "")
{
model.OrderDate = DateTime.Parse(row["OrderDate"].ToString());
}
if (row["UserId"] != null && row["UserId"].ToString() != "")
{
model.UserId = int.Parse(row["UserId"].ToString());
}
if (row["TotalPrice"] != null && row["TotalPrice"].ToString() != "")
{
model.TotalPrice = decimal.Parse(row["TotalPrice"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public OLBookstore.Model.Orders GetModel(int Id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 Id,OrderDate,UserId,TotalPrice from Orders ");
strSql.Append(" where Id=@Id");
SqlParameter[] parameters =
{
new SqlParameter("@Id", SqlDbType.Int, 4)
};
parameters[0].Value = Id;
OLBookstore.Model.Orders model = new OLBookstore.Model.Orders();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
