... Your client code (the code that uses a Book object) is able to read and write to any field declared with the public keyword (Public in Visual Basic and public in Visual C# ) Providing direct access ... your code than Visual Basic offers In the case of the preceding C# code, a more compact format for a property definition is shown Never sacrifice readability for compactness Add a constructor without ... Visual C# class contains the class declaration as well as a constructor Here’s the syntax for declaring a class in C# : class ClassName {} A constructor contains code to initialize the fields of a class...
... by calling a stored procedure You set the CommandType property of the SqlCommand object to CommandType.StoredProcedure You set the CommandText property of the object to procProductList Your code ... function creates and returns a reference to a COM object CreateObject cannot be used to create instances of classes in Visual Basic unless those classes are explicitly exposed as COMcomponents ... way in IT testing and certification tools, www.testking .com - 19 - 070 - 315 A Change the CommandType property setting of the SqlCommand object to CommandType.Text Change the CommandText property...
... Professional C# 4 and NET Covariance and Contra-variance Covariance with Generic Interfaces Contra-Variance with Generic Interfaces Tuples The Dynamic Type Dynamic Behind the Scenes Code Contracts Preconditions ... video ... Now comment out the StaticClass references and uncomment the DynamicClass references: static void Main(string[] args) { //StaticClass staticObject = new StaticClass(); DynamicClass dynamicObject...
... book will compile in safe mode, except for the code in Chapter 12, which deals specifically with unverifiable code, andcode that uses specific constructs such as unsafe uses of static_cast If ... any specific processor architecture However, as you’ve seen, code compiled with /clr rather than /clr:pure or /clr:safe may contain platform-specific code Also, even in pure mode, you can invoke ... familiar with C# , safe code is like C# code that doesn’t have any unsafe blocks In Visual Basic, it’s not possible to use unsafe constructs, so Visual Basic code is the equivalent of the C+ +/CLI safe...
... logForm.oraConnection; oraCommand.CommandType = CommandType.Text; oraCommand.CommandText = cmdString; oraCommand.Parameters.Add("courseid", OracleType.Char).Value = CourseList.SelectedItem; C D CourseDataAdapter.SelectCommand ... paramFacultyCourse.OracleType = OracleType.Cursor; paramFacultyCourse.Direction = ParameterDirection.Output; oraCommand.Connection = logForm.oraConnection; oraCommand.CommandType = CommandType.StoredProcedure; ... access and use the global connection object defined in that class C The Command object is initialized by assigning it with associated properties such as the Connection, CommandType, and CommandText...
... sqlCommand.CommandType = CommandType.StoredProcedure; sqlCommand.CommandText = cmdString; sqlCommand.Parameters.Add("@facultyName", SqlDbType.Text).Value = FacultyName; sqlReader = sqlCommand.ExecuteReader(); ... be encountered when the project runs because the project cannot find the target stored procedure C Change the CommandType property of the Command object from the CommandType Text to the CommandType.StoredProcedure ... CommandType.Text; sqlCommand.CommandText = cmdString; sqlCommand.Parameters.Add("@facultyName", SqlDbType.Text).Value = FacultyName; FacultyAdapter.SelectCommand = sqlCommand; intResult = FacultyAdapter.Fill(dsFaculty,...
... tkCommand As New OleDbCommand _ (tkSQLSelect) B Dim myConnection As New OleDbConnection _ (myOleDbConnectionString) Dim tkCommand As New OleDbCommand _ (tkSQLSelect, myConnection) C Dim myConnection ... myConnection As New SqlConnection _ (mySqlConnectionString) Dim tkCommand As New SqlCommand _ tkSQLSelect) D Dim myConnection As New SqlConnection _ (mySqlConnectionString) Dim tkCommand As New SqlCommand ... testing and certification tools, www.testking .com -7- 070 - 310 A myCommand.CommandText = “TestKingCustomer, ALFKI” myCommand.Parameters.Add (“@CustomerID”) B myCommand.CommandText = “TestKingCustomer”...
... important E F OracleCommand oraCommand = new OracleCommand(cmdString, oraConnection); oraCommand.CommandType = CommandType.StoredProcedure; oraCommand.Parameters.Add(paramCourseID); oraCommand.Parameters.Add(paramCourseInfo); ... } oraCommand.Connection = oraConnection; oraCommand.CommandType = CommandType.StoredProcedure; oraCommand.CommandText = cmdString; oraCommand.Parameters.Add("FacultyName", OracleType.VarChar).Value ... ParameterDirection.Output; D E F G H oraCommand.Connection = oraConnection; oraCommand.CommandType = CommandType.StoredProcedure; oraCommand.CommandText = cmdString; oraCommand.Parameters.Add(paramFacultyName);...
... ‘RTFM’) comes from Unix hackerdom; see [JARGON] if you are interested in it Chapter Aspects of debugging Cand C+ + code Debugging Cand C+ + code entails noticing, localising, understanding and repairing ... allocation debugging tools As discussed earlier in the section called Cand C+ + speci c problems, one of the causes of problems withCand C+ + code, is the policy of requiring explicit allocation ... static analysis early; see the section called Using the compiler’s features Explicit storage allocation and deallocation In Cand C+ +, you have to explicitly allocate and deallocate dynamic storage...