... folder containing the
database files. The user account requires permissions to access the share that contains the
database file and folders.
The user account must be recognized by the Access computer. ... a domain user
account, add it to the permissions list on both computers. For a user account local to the
IIS computer, create a duplicate account on the Access computer with the same name and ... and
password.
Grant the user account Log on Locally and Access this Computer from the Network
permission to access the computer in the local security policy. These permissions are
assigned...
... to work with. Next step is to create Data Access Layer.
Data Access Layer [DAL - PersonDAL.cs]
The way you created BO folder inside App_Code folder, create another folder named DAL. Create a ...
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 ...
Access Layer.
Business Access Layer [BAL - PersonBAL.cs]
Again, right click App_Code folder and add a new folder named BAL. Create a new class file inside it and name it as
PersonBAL.cs. Write...
... several provider-specific connection string
attributes in addition to those defined by ADO .NET. To open adatabase secured by a
Microsoft Access database password, use the Jet OLEDB :Database Password ... obtain
access to the database and database objects. This is also known as share-level security. A
password does not allow groups or users to have distinct levels of access or permissions.
Anyone ... the password has unrestricted access to the database.
The Set Database command from the Tools Security menu is used to set up a
database password.
The OLE DB provider for Microsoft Jet has several...
... Team LiB ]
[ Team LiB ]
Recipe 1.4 Connectingtoa Secured Access Database
Problem
You want to connect toa Microsoft Access database that has been secured with user-level
security and ...
The sample code contains a single event handler:
Connect Button.Click
Creates and opens a connection toa Microsoft Access database secured with user-
level security and a workgroup file using ... defined by ADO .NET. To open adatabase secured by
Microsoft Access user-level security, use the Jet OLEDB:System Database attribute in
the connection string to specify the path and filename...
... PublicKeyToken=31bf3856ad364e35"
validate="false"/>
</httpHandlers>
Programming with the ScriptManager
As a core component of ASP. NET AJAX, the
ScriptManager
control has much functionality,
including the capability to communicate with ASP. NET authentication ... static page methods on an
ASP. NET page can be called from client script
EnablePartialRendering Boolean value that enables partial rendering of a page
EnableScriptGlobalization Boolean value indicating ... by
ASP. NET AJAX and stepped you through many examples of how to use these controls in
JavaScript and ina new XML-based script called ASP. NET AJAX Library.
You looked at some advanced aspects...
... fast changing data, for instance, a page that
displays the major financial indices in the U.S. capital markets: Dow Jones Industrial Aver-
age (DJIA), NASDAQ, and S&P500. One approach is to ... larger and
more 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 ... application is to showcase a good scenario for using
ASP. NET AJAX server controls and not to build a practical market data reporting
application. As such, the initial values for the three indices...
... need to display an image from adatabase column in an ASP. NET control.
Solution
Fill an ASP. NET Image control from adatabase field by pointing the ImageUrl property
of an Image control toa ... retrieve the required image from the database and
retrieve the image using a DataReader. A DataTable or DataSet filled using a
DataAdapter can also be used.
3. Set the ContentType property of ...
Discussion
Rendering an image from adatabaseina Web Forms Image control is easy to do, but not
straightforward. Fortunately, it is much simpler with ASP. NET than it was in ASP.
Two web pages...
... within the data source, such as a row
in a DataTable.
The BindingContext class is used to instantiate a BindingManagerBase object
and either a CurrencyManager or PropertyManager object is returned ... returned
depending on the type of data source:
•
The CurrencyManager class inherits from the BindingManagerBase
class and maintains a pointer for the current item ina data source that
implements ... Databaseina Windows Forms Control
Problem
You need to display an image from adatabaseina Windows Forms control.
Solution
Read the image into a byte array and load it directly into a PictureBox...
... http://localhost/myapplication/trace.axd to access the trace
statistics for that application.
Topic Objective
To explain how application-
level trace works.
Lead -in
In addition to exposing a
generalized trace facility ...
Topic Objective
To introduce the lab.
Lead -in
In 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 ... topic on how to trace into a component.
When talking about tracing into a component, tell them about why it is
useful to be able to trace into a component.
!
Application-Level Trace
ASP. NET...
... fill a DataSet using a DataAdapter or to create a
DataReader. For example:
SELECT * FROM [MySheet$]
Update data
The UPDATE command, either static or parameterized, can update data ina worksheet ... provider to access Microsoft Excel as a data source. The Jet
database engine can access other database file formats through Indexed Sequential
Access Method (ISAM) drivers specified in the Extended ... either a DataAdapter or a DataReader to retrieve data from an Excel workbook.
Create a SQL SELECT statement referencing a worksheet or a range in an Excel
workbook and execute the statement to...
... need to understand what a SQL Server or MSDE named instance is and how to
connect to one. The sample code contains a single event handler:
Connect Button.Click
Creates and opens a connection to ... Team LiB ]
Recipe 1.7 Connectingtoa Named Instance of SQL Server or Microsoft Data
Engine (MSDE)
Problem
You want to connect toa named instance of a SQL Server or Microsoft Data Engine ... ConfigurationSettings.AppSettings["Sql_Msde_ConnectString"]);
Manager and Query Analyzer are also shared.
The System.Data.SqlClient class cannot automatically discover the port number of a
named instance of SQL Server listening...
... provider can read records from and insert records into a text file data
source. The Jet database engine can access other database file formats through Indexed
Sequential Access Method (ISAM) drivers ...
Problem
You want to use ADO .NET to access data stored ina text file.
Solution
Use the OLE DB Jet provider to access data ina text file.
The sample code creates an OleDbDataAdapter that uses the ...
You can access files that use non-standard text delimiters and fixed-width text files by
creating a schema.ini file in the same directory as the text file. As an example, a possible
schema.ini...
... demonstrates how to store XML data ina text field of adatabase table and
subsequently read it into an XmlDocument using the LoadXml( ) method. Standard
database access techniques using a DataAdapter ... da.InsertCommand = new SqlCommand(insertText,
da.SelectCommand.Connection);
da.InsertCommand.CommandType = CommandType.Text;
da.InsertCommand.Parameters.Add("@Id", SqlDbType.Int, ... // Create the data adapter.
da = new SqlDataAdapter(selectText,
ConfigurationSettings.AppSettings["Sql_ConnectString"]);
da.UpdateCommand = new SqlCommand(updateText,
da.SelectCommand.Connection);...