http://thanhlt.wordpress.com Just another WordPress.com weblog Sun, 14 Oct 2007 05:16:39 +0000 vi hourly 1 http://wordpress.com/ http://s2.wp.com/i/buttonw-com.png http://thanhlt.wordpress.com http://thanhlt.wordpress.com/2007/10/14/ms-sql-server-2005-express-edition/ http://thanhlt.wordpress.com/2007/10/14/ms-sql-server-2005-express-edition/#comments Sun, 14 Oct 2007 05:16:39 +0000 Lê Tiến Thành http://thanhlt.wordpress.com/2007/10/14/ms-sql-server-2005-express-edition/ ]]> MS SQL Server 2005 Express Edition là một phiên bản miễn phí mà MS cung cấp cho người sử dụng cá nhân hoặc doanh nghiệp nhỏ (Cỡ vài chục nhân viên). Phiên bản này chỉ có các chức năng cơ bản nhất của SQL Server 2005, nhưng khá đầy đủ các cho các yêu cầu về lưu trữ và xử lý bình thường.

]]> http://thanhlt.wordpress.com/2007/10/14/ms-sql-server-2005-express-edition/feed/ 0 thanhlt http://thanhlt.wordpress.com/2007/10/13/s%e1%bb%ad-d%e1%bb%a5ng-visual-studio-ide/ http://thanhlt.wordpress.com/2007/10/13/s%e1%bb%ad-d%e1%bb%a5ng-visual-studio-ide/#comments Sat, 13 Oct 2007 23:46:42 +0000 Lê Tiến Thành http://thanhlt.wordpress.com/2007/10/13/s%e1%bb%ad-d%e1%bb%a5ng-visual-studio-ide/ ]]> A discrete parameter is a single value, as opposed to a range parameter, which refers to
a range of values. Text items (such as cities) are usually accessed through discrete
parameters. Numeric items (such as employee salaries) are usually accessed through
range parameters.
In this tutorial, you set a value for a discrete parameter to view a customer report that is
based on one field. The report displays only those customers who live in the cities you
have selected from a city list. The city list is derived from the default values for the City
parameter. Those default values for the City parameter are encapsulated within the
report.
To begin, you create a customer report with a city parameter. The report derives its data
from the sample database that is shipped with Crystal Reports for Visual Studio. When you
instantiate the report in the code, you create an ArrayList that contains city names (Paris,
Tokyo) and pass that ArrayList instance to a helper method that sets those city names as
the current values for the city parameter. You then bind the report to the
CrystalReportViewer control and view the report with only those customers that live in
Paris and Tokyo displayed.
In the next part of the tutorial, you do the following:
Create a method that gets all the default values and returns them in an ArrayList.
Add a ListBox control to the form and populate it from the ArrayList.
Add a Button control to redisplay the report based on ListBox selections.
In the final part of the tutorial, you code the button click event to retrieve any selected
items from the ListBox control and set those to be the current values for the city
parameter. The report redisplays and shows only those customers who live in the cities
that have been selected within the ListBox control.
This tutorial can also be completed with classes of the ReportDocument object model.

]]> http://thanhlt.wordpress.com/2007/10/13/s%e1%bb%ad-d%e1%bb%a5ng-visual-studio-ide/feed/ 0 thanhlt http://thanhlt.wordpress.com/2007/10/13/hello-world/ http://thanhlt.wordpress.com/2007/10/13/hello-world/#comments Sat, 13 Oct 2007 21:16:36 +0000 Lê Tiến Thành ]]> Welcome to WordPress.com. This is your first post. Edit or delete it and start blogging!

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