... lines 20 and 21.
Common ASP .NET Code Techniques
C
HAPTER 2
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2143-2 ch02 3/19/01 3:43 PM Page 42
developer cannot easily add and remove elements without concerning himself with the size
and makeup ... 2.11
The user can enter HTML and a filename and the ASP .NET page will generate a file on the Web server with the proper
name and contents!
Listing 2.11 is the first code sample we’ve looked at ... top of the stack without removing the element.
Common ASP .NET Code Techniques
C
HAPTER 2
2
COMMON ASP .NET
C
ODE TECHNIQUES
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2143-2 ch02 3/19/01 3:43 PM Page 19
When working with the various...
... selForm = new SelectionForm();
accCommand.Connection = accConnection;
accCommand.CommandType = CommandType.Text;
accCommand.CommandText = cmdString;
accCommand.Parameters.Add("@Param1", ... relationship
between the LINQ and the Microsoft Access database, but we can set up an indirect
relationship between them using the LINQ to ADO .NET since ADO .NET covers any
kinds of database including ... creat-
ing and implementing connection objects and data operation objects related to ADO.
NET and (2) they allow you to use different methods to access and manipulate data from
the data source and...
... provides a connection to the databaseand trans-
lates Standard Query Operators to the standard SQL statements to access our database.
In order to avoid access and use the same database simultaneously, ...
sqlCommand.Connection = logForm.sqlConnection;
sqlCommand.CommandType = CommandType.Text;
sqlCommand.CommandText = cmdString;
sqlCommand.Parameters.Add("@courseid", SqlDbType.Char).Value ... query string and the Add()
method for the Parameters collection.
B. Two data components, Command and DataTable, are created here and they will be used
in this method.
C. The Command object...
... txtPassWord.Text;
oraCommand.Connection = oraConnection;
oraCommand.CommandType = CommandType.Text;
oraCommand.CommandText = cmdString;
oraCommand.Parameters.Add(oraUserName);
oraCommand.Parameters.Add(oraPassWord); ... txtPassWord.Text;
oraCommand.Connection = oraConnection;
oraCommand.CommandType = CommandType.Text;
oraCommand.CommandText = cmdString;
oraCommand.Parameters.Add(oraUserName);
oraCommand.Parameters.Add(oraPassWord); ... other codes, open the code window of the
Student form, select those codes, copy, and then paste them to our new SP form code
window. One point you need to note is that when you copy the codes...
... beginners to Visual C# and databases. This method utilizes
many powerful tools and wizards provided by Visual Studio .NET 2008 andADO .NET
to simplify the coding process, and most of codes are autogenerated ... oraCommand.Connection = logForm.oraConnection;
oraCommand.CommandType = CommandType.StoredProcedure;
oraCommand.CommandText = cmdString;
oraCommand.Parameters.Add(paramFacultyName);
oraCommand.Parameters.Add(paramFacultyCourse); ... OleDbCommand, SqlCommand, and OracleCommand class to dynamically execute
the data query with dynamic parameters to three kinds of databases.
ã Use the OleDbDataAdapter, SqlDataAdapter, and OracleDataAdapter...
... sqlCommand.Connection = logForm.sqlConnection;
sqlCommand.CommandType = CommandType.Text;
sqlCommand.CommandText = cmdString;
InsertParameters(sqlCommand);
//FacultyDataAdapter.InsertCommand ... provider, the location and
the name of the database, and username and password used to access the database. In this
case, no username and password are utilized for our database, so those two ... logForm.getLogInForm();
accCommand.Connection = logForm.accConnection;
accCommand.CommandType = CommandType.Text;
accCommand.CommandText = cmdString;
accCommand.Parameters.Add("@name",...
... 0;
OracleCommand oraCommand = new OracleCommand();
oraCommand.Connection = oraConnection;
oraCommand.CommandType = CommandType.StoredProcedure;
oraCommand.CommandText = cmdString;
oraCommand.Parameters.Add("Name", ... update and delete data in the databases. Generally,
many different methods are provided and supported by Visual C# .NET and .NET
Framework to help users perform data updating and deleting in the database. ... Chapter
7
Data Updating and Deleting with
Visual C #. NET
Practical DatabaseProgrammingWith Visual C# .NET, by Ying Bai
Copyright â 2010 the Institute of Electrical and Electronics Engineers,...
... Access databaseand the SQL Server database, in this chapter we
only use the SQL Server databaseand the Oracle database as our target databases to
illustrate how to select, display, and manipulate ... (user_name=@name) AND (pass_word=@word)";
SqlCommand sqlCommand = new SqlCommand();
SqlDataReader sqlReader;
sqlCommand.Connection = sqlConnection;
sqlCommand.CommandType = CommandType.Text; ...
Command object and DataReader object.
C. The Command object is initialized and built by assigning it with the Connection object,
commandType, and Parameters collection properties of the Command...
...
SqlCommand sqlCommand = new SqlCommand();
int intDelete = 0;
sqlCommand.Connection = (SqlConnection)Application["sqlConnection"];
sqlCommand.CommandType = CommandType.Text;
sqlCommand.CommandText ... oraCommand.Connection = (OracleConnection)Application["oraConnection"];
oraCommand.CommandType = CommandType.Text;
oraCommand.CommandText = cmdString;
UpdateParameters(ref oraCommand); ... provided by the .NET
Framework, and you implement the .NET Framework by using the tools such as Visual
Studio .NET provided by the .NET Framework, too.
____ 5. ASP .NET 3.5 is a programming framework...
... " ;Database connection is failed";
ReportError(SQLResult);
return null;
}
sqlCommand.Connection = sqlConnection;
sqlCommand.CommandType = CommandType.Text;
sqlCommand.CommandText ... the last section, this code indicates the programming language
in which the Web Service ’ s code - behind fi le is written, the code - behind fi le ’ s name and
location, and the class that defi ... test and confi rm this connectionString , we can develop some codes and modify
the coding of the default HelloWorld Web method in the code - behind page to do
that. Close the web.confi g fi le and...
... ASP .NET Web Service to Update and Delete Data for SQL Server Database
809
G. The Command object is initialized with associated data objects such as Connection object,
Command text, and Command ... Studio .NET 2008 environment.
9.5.3.1 Develop Stored Procedure Web U pdate C ourse SP
Open Visual Studio .NET 2008 and the Server Explorer window, and connect and expand
our sample SQL Server database ... ReportError(SQLResult);
return null;
}
sqlCommand.Connection = sqlConnection;
sqlCommand.CommandType = CommandType.StoredProcedure;
sqlCommand.CommandText = cmdString;
sqlCommand.Parameters.Add("@FacultyName",...
... OracleCommand oraCommand = new OracleCommand(cmdStr
ing, oraConnection);
oraCommand.CommandType = CommandType.StoredProcedure;
oraCommand.Parameters.Add(paramCourseID);
oraCommand.Parameters.Add(paramCourseInfo); ... 840
Chapter 9 ASP .NET Web Services
3. Open the App _Code folder and change the name of our derived class fi le from
SQLSelectResult.cs to OracleSelectResult.cs .
4. Open the App _Code folder and change ...
Solution Explorer window and perform the following modifi cations:
• Change
CodeBehind= " ~ /App _Code/ WebServiceSQLSelect.cs "
to
CodeBehind= " ~ /App _Code/ WebServiceOracleSelect.cs...