Tài liệu Creating a ForeignKeyConstraint Object doc

... your ForeignKeyConstraint. • parentDataTableName is the name of the parent DataTable. • parentDataColumnNames and childDataColumnNames contain the names of the DataColumn objects in the parent ... ForeignKeyConstraint( string constraintName, DataColumn[] parentDataColumns, DataColumn[] childDataColumns) ForeignKeyConstraint( string constraintName, string parentDataTableName, string...

Ngày tải lên: 21/01/2014, 07:20

... Creating a Command Object Using Visual Studio .NET To create a SqlCommand object using Visual Studio .NET (VS .NET), you drag a SqlCommand object from the Data tab of the Toolbox ... project named MyDataReader containing a Windows application. 2. Add a SqlConnection object to your project (refer back to the previous chapter to see how to add a SqlConnection object...

Ngày tải lên: 21/01/2014, 07:20

... the Data Adapter Configuration Wizard. Figure 10.12: Final dialog box for the Data Adapter Configuration Wizard Click the Finish button to complete the Wizard. A SqlDataAdapter object named ... form. When you drag a SqlDataAdapter object to your form, you start the Data Adapter Configuration Wizard, as shown in Figure 10.8 . Figure 10.8: The Data Adapter Configuration Wizard...

Ngày tải lên: 21/01/2014, 07:20

... sqlDataAdapter1.Fill(dataSet11, "Products"); sqlConnection1.Close(); System.Data.DataTable myDataTable = dataSet11.Tables["Products"]; foreach (System.Data.DataRow myDataRow in myDataTable.Rows) ... form, and add code to your form to fill it using the Fill() method of a DataAdapter object. • Click the Generate Dataset link at the bottom of the Properties windo...

Ngày tải lên: 21/01/2014, 07:20

... current instance is greater than the value of the parameter As an example, consider the Circle class that was described in Chapter 7, Creating and Managing Classes and Objects,” and is reproduced ... Circle objects based on their areas. The area of a circle with a larger area is greater than a circle with a smaller area. class Circle : System.IComparable { public int Compare...

Ngày tải lên: 24/12/2013, 09:16

... new password once and then again for verification. To add additional Samba user accounts , repeat steps 1 and 2. 3. Create the Samba password file. Enter the following command at the command ... cat /etc/passwd | /usr/bin/mksmbpasswd.sh > /etc/samba/passwd 4. Add an SMB password for users that have Samba accounts. Enter smbpasswd johnd at the shell prompt. After this command has ... a...

Ngày tải lên: 18/01/2014, 05:20

... You'll recall that a SqlConnection object allows you to connect to a SQL Server database. You can also drag an OleDbConnection object from the Toolbox to your form to connect to a database ... Creating a Connection Object Using Visual Studio .NET To create a SqlConnection object using Visual Studio .NET, you drag a SqlConnection object from the Data tab of the T...

Ngày tải lên: 21/01/2014, 07:20

... Creating a SqlCommand Object There are two ways you can create a SqlCommand object: • Use one of the SqlCommand constructors. • Call the CreateCommand() method of a SqlConnection object. ... SqlConnection object. mySqlTransaction is your SqlTransaction object. Before you use a SqlCommand object you first need a SqlConnection object, which is used to communicate with...

Ngày tải lên: 21/01/2014, 07:20

... contains the basketball graphic, which is a movie clip instance appropriately named basketball_mc. We'll be looking at this instance's timeline in a moment because it plays a part ... three layers: Shadow, Graphic, and Sound. The Shadow and Graphic layers contain a couple of tweens to emulate the look and movement of a bouncing basketball. The Sound layer simply contai...

Ngày tải lên: 21/01/2014, 13:20

... SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); mySqlDataAdapter.Fill(myDataSet); mySqlConnection.Close(); myDataSet.Tables["Table"].TableName ... the DataColumn of a DataTable, the D ataColumn value in each DataRow object in the DataTable must be unique. The final example retrieves the constrain...

Ngày tải lên: 26/01/2014, 07:20