earn concurrent programming with c 40
Database Programming with C#
... the modification has occurred. However, this doesn’t mean that a changecan’t be rolled back, because the trigger has direct access to the modified row andas such can roll back any modification. ... the connection23 cnnUserMan = new SqlConnection(STR_CONNECTION_STRING);24 cnnUserMan.Open();2526 // Instantiate and initialize command27 cmmUser = new SqlCommand(“SELECT * FROM viwUser”, cnnUserMan);28 ... constraint in some situations, because a trigger can access columnsin other tables, unlike a constraint, which can only access columns in the currenttable or row. If your code is to handle your business...
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Tài liệu Programming with C# pdf
... basic concepts and terminology of object-oriented programming. Use common objects and references types. Create, initialize, and destroy objects in a C# application. Build new C# classes ... sample. xii Programming with C# Trainer Materials Compact Disc Contents The Trainer Materials compact disc contains the following files and folders: Autorun.exe. When the CD is inserted ... section provides you with a brief description of the course, audience, suggested prerequisites, and course objectives. Description This five-day instructor-led course provides students with...
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Tài liệu BEGINNING OBJECT-ORIENTED PROGRAMMING WITH C# doc
... YOUR OWN CLASSESCHAPTER 9: DESIGNING CLASSES 227Class Design 228Scope 230Block Scope 231Local Scope 232Class Scope 232Namespace Scope 233Visualizing Scope 233Why Does C# Support Scope? ... from which you can select to view the source code for the fi le you just right-clicked. You can move to the Solution Explorer menu bar and click the source code icon to view the code that ... Studio” section of this chapter to check each step to ensure you followed the correct sequence.SUMMARYIn this chapter you learned how object-oriented programming started more than four decades...
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Object oriented programming with C++ - Session 1 - Basic Object Oriented Concepts doc
... Classes Object Oriented Programming with C+ +/ Session 1/ 19 of 50Method (Contd.)•The black box actually contains code (sequences of computer instructions) and data (information which ... with C+ +/ Session 1/ 3 of 50Session Objectives (Contd.)•Methods•Abstraction•Inheritance•Encapsulation•Polymorphism■Compare Classes with Structures■Describe Private and Public sections ... interface to the object. Object Oriented Programming with C+ +/ Session 1/ 37 of 50Using the classbegin programclass exampleclass{ // specify a classprivate:object_data is an integer; // class...
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Object oriented programming with C++ - Session 2 More on Classes potx
... private:static int count:int car_number;char name[30]; public:race_cars(){count++;} //constructor to increment count~race_cars(){count ;} //destructor to decrement count};int race_cars::count;The ... //errorObject Oriented Programming with C+ +/ Session 2/ 29 of 37The count is commonCount:3 cars in the raceObject Oriented Programming with C+ +/ Session 2/ 28 of 37Exampleclass race_cars{ ... as a private category of the class, the non-member functions cannot access it. If it is declared as public, then any member of the class can access. Static member can become a global...
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Practical Database Programming With Visual C#.NET- P6
... OleDbCommand accCommand = new OleDbCommand(); SelectionForm selForm = new SelectionForm(); OleDbDataReader accDataReader; accCommand.Connection = accConnection; accCommand.CommandType = CommandType.Text; ... "Data Source =C: \\database\\Access\\CSE_DEPT.accdb;"; accConnection = new OleDbConnection(strConnectionString); try { accConnection.Open(); } catch (OleDbException e) { MessageBox.Show("Access ... DataTable accDataTable = new DataTable(); OleDbCommand accCommand = new OleDbCommand(); SelectionForm selForm = new SelectionForm(); accCommand.Connection = accConnection; accCommand.CommandType...
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Practical Database Programming With Visual C#.NET- P7
... string.Empty; DataRow rowFaculty; accCmdFaculty.Connection = logForm.accConnection; accCmdFaculty.CommandType = CommandType.Text; accCmdFaculty.CommandText = strFaculty; accCmdFaculty.Parameters.Add("@Param1", ... MTC-336J33486 Steve Johnson MTC-118K69880 Jenney King MTC-324course_id faculty_id classroomCSC-131A A52990 TC-109CSC-13 1C A52990 TC-109CSC-132A J33486 TC-303CSC-132B B78880 TC-302CSC-230 ... OleDbType.Char).Value = ComboName.Text; FacultyDataAdapter.SelectCommand = accCmdFaculty; FacultyDataAdapter.Fill(accFacultyTable); if (accFacultyTable.Rows.Count > 0) { rowFaculty = accFacultyTable.Rows[0];...
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Practical Database Programming With Visual C#.NET- P8
... oraDataReader.Close(); }A B C D OracleSelectRTObject.LogInForm cmdReadLogIn_Click() Figure 5.164 Coding for the ReadLogIn button Click method. private void cmdCancel_Click(object sender, ... namespace System.Data.SqlClient to the namespace declaration section on this SP form code window. The only difference is the codes for the Select button Click method, cmdSelect_Click(). Don ’ t copy ... derived class CSE_DEPTDataContext is created with the fi rst constructor. A trick here is that no connection string is included in this connection object. Yes, but where is the connection string?...
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Practical Database Programming With Visual C#.NET- P9
... "FacultyCourse"; paramFacultyCourse.OracleType = OracleType.Cursor; paramFacultyCourse.Direction = ParameterDirection.Output; oraCommand.Connection = logForm.oraConnection; oraCommand.CommandType ... data queries on Microsoft Access 2007, SQL Server 2005, and Oracle databases. • Use the OleDbConnection, SqlConnection, or OracleConnection class to connect to Microsoft Access 2007, SQL Server ... Query with Visual C# .NET • Use the OleDbConnection, SqlConnection, and OracleConnection class to dynamically connect to Microsoft Access 2007, SQL Server 2005 Express, and Oracle 10g XE databases....
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Practical Database Programming With Visual C#.NET- P10
... logForm.getLogInForm(); accCommand.Connection = logForm.accConnection; accCommand.CommandType = CommandType.Text; accCommand.CommandText = cmdString; accCommand.Parameters.Add("@name", OleDbType.Char).Value ... AccessInsertRTObject.sln • AccessInsertRTObject.csproj • AccessInsertRTObject.exe • AccessInsertRTObject.pdb • AccessInsertRTObject.cshost.exe • AccessInsertRTObject.xml To rename the last ... faculty without any photo accompanying with that insertion. 2. The Faculty Photo checkbox is checked, and the Photo Location is the Default Location. 3. The Faculty Photo checkbox is checked,...
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Practical Database Programming With Visual C#.NET- P11
... if (CourseInfo[pos] == String.Empty) check++; } return check; } private void cmdBack_Click(object sender, EventArgs e) { this.Close(); } private void cmdCancel_Click(object sender, ... string cmdString = "InsertCourse"; int intInsert = 0;OracleCommand oraCommand = new OracleCommand(); oraCommand.Connection = oraConnection; oraCommand.CommandType = CommandType.StoredProcedure; ... cations to other forms. Basically, these modifi cations change the con-nection object from SqlConnection to OleDbConnection for all other forms to match the connection requirement of the Microsoft...
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Practical Database Programming With Visual C#.NET- P12
... CommandType.StoredProcedure; accCommand.CommandText = cmdString; accCommand.Parameters.Add("FacultyName", OleDbType.Char).Value = ComboName.Text; intDelete = accCommand.ExecuteNonQuery(); accCommand.Dispose(); ... DBProjects\Chapter 7 located at the accompanying ftp site (see Chapter 1 ). Course Table course_id StudentCourse Table course_id course_id=CSC-132Bcourse_id=CSC-234A course_id=CSE-434 course_id=CSE-438 ... this record?", "Delete", vbButton); if (Answer == System.Windows.Forms.DialogResult.Yes) { accCommand.Connection = logForm.accConnection; accCommand.CommandType = CommandType.StoredProcedure;...
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