connect to a access database in asp net
Tài liệu Create a Dialog Box to Connect to a New Database, Including Listing Available SQL Servers and Databases pdf
... Available SQL Servers and Databases Users sometimes need to connect to various databases. An example of this is a large company that might keep its site information in separate databases in ... string that connects you to the SQL Server, allowing you access to the databases LoginSecure Flag that specifies that you want to connect to the SQL Server using a trusted connection Databases ... create a dialog box that lists available SQL Servers and databases and that the user can utilize to connect to a new database? Technique For this How -To, you will be using the base object in...
Ngày tải lên: 21/01/2014, 12:20
Using a SqlConnection Object to Connect to a SQL Server Database phần 1
... reason, ADO .NET automatically stores database connections in a pool. Connection pooling offers a great performance improvement because you don't have to wait for a brand new connection to the ... database to be established when there's a suitable connection already available. When you close a connection, that connection isn't actually closed; instead, your connection is marked ... public static void Main() { // formulate a string containing the details of the // database connection string connectionString = "server=localhost ;database= Northwind;uid=sa;pwd=sa";...
Ngày tải lên: 07/11/2013, 10:15
Tài liệu Using a SqlConnection Object to Connect to a SQL Server Database phần 2 doc
... your connection request to the database; two examples of states are open and closed. You use the Connection object's State property to get the current state of the connection to the database. ... You can close the Connection and reopen it. Closed The Connection is closed. Connecting The Connection is establishing access to the database. Executing The Connection is running a command. ... is because the first connection makes the actual connection to the database. When it is closed, it's stored in the connection pool. When the connection is then opened again, it's...
Ngày tải lên: 14/12/2013, 13:15
Building a Sample Application Using ASP.NET AJAX
... SAMPLE APPLICATION USING ASP. NET AJAX 239 828-8 CH10.qxd 10/11/07 10:47 AM Page 239 226 CHAPTER 10 ■ BUILDING A SAMPLE APPLICATION USING ASP. NET AJAX Figure 10-1. An ASP. NET AJAX-based stock application Understanding ... the Foundations of ASP. NET AJAX, including a tour of some of the basic principles in devel- oping AJAX-style applications and the unique and powerful approach to this that ASP. NET AJAX gives ... a call to the DataTier web service to get the DataTable back. The DataTable then loads the graph with the appropriate data. CHAPTER 10 ■ BUILDING A SAMPLE APPLICATION USING ASP. NET AJAX244 828-8...
Ngày tải lên: 05/10/2013, 10:20
Introducing Server Controls in ASP.NET AJAX
... of ASP. NET AJAX. Using ASP. NET AJAX server controls is the easiest and quickest path to implementing AJAX functionality in your ASP. NET application. They are also ideal for when a minimal amount ... learned how to create a new AJAX-enabled ASP. NET site. Alterna- tively, you can just as easily create an AJAX-enabled ASP. NET web application if you have installed the Web Application Project add-on ... Additionally, you looked at the UpdatePanel control, which is at the heart of how ASP. NET AJAX enables AJAX functionality in existing ASP. NET pages using partial-page updates. This chapter gave...
Ngày tải lên: 05/10/2013, 10:20
Using Server Controls in ASP.NET AJAX
... sophisticated apps that need logical and physical separation of the data tier that has complex data objects and a data access layer. Summary The ToDo List application is an excellent example of an ASP. NET ... data file is the data container for Scott’s ToDo List application and resides in the App_Data folder of the site. You may have to manually add the ASP. NET user of your machine to this database ... following scenario: You have a data-driven web page that needs to continuously alert the user with fast changing data, for instance, a page that displays the major financial indices in the U.S. capital...
Ngày tải lên: 05/10/2013, 10:20
4-Tier Architecture in ASP.NET with C#
... We will create a separate pages to insert these records (default.aspx) into database and list,update,delete records (list.aspx) from database. In this application we will have following 4-Tiers ... We will create a separate pages to insert these records (default.aspx) into database and list,update,delete records (list.aspx) from database. In this application we will have following 4-Tiers ... Business Object and Data Access Layer ready. Now lets go to the third layer and create Business Access Layer. Business Access Layer [BAL - PersonBAL.cs] Again, right click App_Code folder and...
Ngày tải lên: 17/10/2013, 14:15
Module 5: Using Trace in ASP.NET Pages
... Trace 4 Application-Level Trace 9 Lab 5: Adding Trace to an ASP. NET Page 14 Review 15 Module 5: Using Trace in ASP. NET Pages Module 5: Using Trace in ASP. NET Pages 7 BETA MATERIALS ... two tracing techniques in ASP. NET, page-level tracing and application- level tracing. In the lab, students will enable and disable tracing for an ASP. NET page. They will also add custom trace ... this lab, you will enable and disable tracing for an ASP. NET page. You will also add custom trace messages to an ASP. NET page and a middle-tier component. Module 5: Using Trace in ASP. NET...
Ngày tải lên: 05/11/2013, 12:15
Tài liệu Building a Spatial Database in PostgreSQL pptx
... Three Combination of all the previous data Spatial Relationships Adjacency: All the lots which share an edge Why put spatial data in a RDBMS? ã Spatial data is usually related to other types of data. ... concentrations ã Forested Area: monetary value, types of trees, ownership Topics of Discussion ã Spatial data and spatial databases ã Adding spatial extensions to PostgreSQL ã OpenGIS and standards ... Common interfaces are the only way to enable overlays and combinations of complex and essentially different kinds of geographic information to happen automatically over the Internet, despite...
Ngày tải lên: 20/02/2014, 05:21
Báo cáo khoa học:The principle of flux minimization and its application to estimate stationary fluxes in metabolic networks docx
... reducible to rapid self- reproduction, gaining a maximal biomass production at a given total flux is obviously equivalent to maintaining a given rate of biomass production at a minimum of the total flux. ... branch catalyzed by p yruvate kinase and the malic enzyme (reactions 43 and 42), whereas the isotope experiment indicates the main flux to proceed along an alternative branch, having oxalacetate ... structural modelling, the principle of flux minimization appears to be a promising theoretical approach to assess stationary flux rates in metabolic systems in cases where a detailed kinetic model is not yet available. Keywords:...
Ngày tải lên: 07/03/2014, 15:20
Gradual phase and morphology transformation of Fe3O4nanoparticles to a - FeOOH nanorods in alcohol/water mediain the presence of surfactant F127
Ngày tải lên: 19/03/2014, 16:48
Báo cáo Y học: Human bile salt-stimulated lipase has a high frequency of size variation due to a hypervariable region in exon 11 pot
Ngày tải lên: 24/03/2014, 03:21
Báo cáo hóa học: "Research Article Cross-Layer Explicit Link Status Notification to Improve TCP Performance in Wireless Networks" potx
Ngày tải lên: 21/06/2014, 20:20
