private void ShowInfo()
{
OLBookstore.BLL.RecomBooksManager bll = new OLBookstore.BLL.RecomBooksManager();
OLBookstore.Model.RecomBooks model = bll.GetModel();
this.lblBookId.Text = model.BookId.ToString();
this.lblUserId.Text = model.UserId.ToString();
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(OLBookstore.Model.RecomBooks model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update RecomBooks set ");
strSql.Append("BookId=@BookId,");
strSql.Append("UserId=@UserId");
strSql.Append(" where ");
SqlParameter[] parameters =
{
new SqlParameter("@BookId", SqlDbType.Int, 4),
new SqlParameter("@UserId", SqlDbType.Int, 4)
};
parameters[0].Value = model.BookId;
parameters[1].Value = model.UserId;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 增加一条数据
/// </summary>
public bool Add(OLBookstore.Model.RecomBooks model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into RecomBooks(");
strSql.Append("BookId,UserId)");
strSql.Append(" values (");
strSql.Append("@BookId,@UserId)");
SqlParameter[] parameters =
{
new SqlParameter("@BookId", SqlDbType.Int, 4),
new SqlParameter("@UserId", SqlDbType.Int, 4)
};
parameters[0].Value = model.BookId;
parameters[1].Value = model.UserId;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
string strErr = "";
if (!PageValidate.IsNumber(txtBookId.Text))
{
strErr += "BookId格式错误！\\n";
}
if (!PageValidate.IsNumber(txtUserId.Text))
{
strErr += "UserId格式错误！\\n";
}
if (strErr != "")
{
MessageBox.Show(this, strErr);
return;
}
int BookId = int.Parse(this.txtBookId.Text);
int UserId = int.Parse(this.txtUserId.Text);
OLBookstore.Model.RecomBooks model = new OLBookstore.Model.RecomBooks();
model.BookId = BookId;
model.UserId = UserId;
OLBookstore.BLL.RecomBooksManager bll = new OLBookstore.BLL.RecomBooksManager();
bll.Add(model);
Maticsoft.Common.MessageBox.ShowAndRedirect(this, "保存成功！", "add.aspx");
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public OLBookstore.Model.RecomBooks DataRowToModel(DataRow row)
{
OLBookstore.Model.RecomBooks model = new OLBookstore.Model.RecomBooks();
if (row != null)
{
if (row["BookId"] != null && row["BookId"].ToString() != "")
{
model.BookId = int.Parse(row["BookId"].ToString());
}
if (row["UserId"] != null && row["UserId"].ToString() != "")
{
model.UserId = int.Parse(row["UserId"].ToString());
}
}
return(model);
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public OLBookstore.Model.RecomBooks GetModel()
{
//该表无主键信息，请自定义主键/条件字段
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 BookId,UserId from RecomBooks ");
strSql.Append(" where ");
SqlParameter[] parameters =
{
};
OLBookstore.Model.RecomBooks model = new OLBookstore.Model.RecomBooks();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
