... 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?...
... "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....
... 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,...
... 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...
... protected void cmdBack_Click(object sender, EventArgs e) { Response.Redirect("Selection.aspx"); } Faculty cmdBack_Click() Figure 8.22 Coding for the Back button ’ s method. c0 8.indd ... func-tions in the client side to reduce the burden of the server. protected void cmdCancel_Click(object sender, EventArgs e) { if (sqlConnection.State == ConnectionState.Open) sqlConnection.Close(); ... protected void cmdExit_Click(object sender, EventArgs e) { if (((SqlConnection)Application["sqlConnection"]).State == ConnectionState.Open) ((SqlConnection)Application["sqlConnection"]).Close();...
... protected SqlConnection SQLConn() { string cmdString = ConfigurationManager.ConnectionStrings["sql_conn"].ConnectionString; SqlConnection conn = new SqlConnection(); conn.ConnectionString ... ConfigurationManager.ConnectionStrings["sql_conn"].ConnectionString; SqlConnection sqlConnection = new SqlConnection(); sqlConnection.ConnectionString = cmdString; sqlConnection.Open(); if (sqlConnection.State != System.Data.ConnectionState.Open) ... a ConnectionStringSettingsCollection object containing the contents of the ConnectionStringsSection object for the current application ’ s default confi guration, and a ConnectionStringsSection...
... DBProjects\Chapter 9 located at the accompanying ftp site (see Chapter 1 ), and select the Web Service project WebServiceSQLInsert. Copy this project and paste it into our new folder C: \Chapter ... based client project WinClientSQLInsert. You can copy and paste it into this project. The function of this coding is straightforward and without tricks. Each piece of course data is extracted ... The Command object is initialized with associated data objects such as Connection object, Command text, and Command type. Note that the Command type must be set to the StoredProcedure since...
... OracleConnection OracleConn() { string cmdString = ConfigurationManager.ConnectionStrings["ora_conn"].ConnectionString; OracleConnection conn = new OracleConnection(); conn.ConnectionString ... [WebMethod]public OracleInsertBase GetOracleInsertCourse(string CourseID) { string cmdString = "WebSelectCourseSP.SelectCourse"; OracleConnection oraConnection = new OracleConnection(); OracleInsertBase ... Also change the name of our Web Service class, which is located after the accessing mode public class , and the constructor of this class from WebServiceSQLSelect to WebServiceOracleSelect ....
... 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...
... 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 Programmingwith C# Trainer Materials Compact Disc Contents The Trainer Materials compact disc contains the following files and folders: Autorun.exe. When the CD is inserted ... Experience programming in C, C+ +, Visual Basic, Java, or another programming language Familiarity with the Microsoft .NET strategy as described on the Microsoft .NET Web site (http://www.microsoft.com/net/)...