Tài liệu Creating a Strongly Typed DataSet pdf

... the strongly typed DataSet. There is a class named TableNameRow for each table in the strongly typed DataSet. It has the base class DataRow and represents a row of data in the table. Table ... method are: DataSet The DataSet used to specify the schema for the typed DataSet. codeNamespace The target namespace for the typed DataSet. codeGenerator A class capable...

Ngày tải lên: 21/01/2014, 11:20

... Create the typed DataSet with name annotations. CategoriesDS_AnnotatedName ds = new CategoriesDS_AnnotatedName( ); // Fill the Categories table within DataSet. da.Fill(ds, CATEGORIES_TABLE); ... either case, data is loaded into the DataSet and the collections of rows and columns in the DataSet are iterated over to display the data and to demonstrate the effect of the schema a...

Ngày tải lên: 24/12/2013, 05:15

... Team LiB ] Recipe 2.19 Replacing Null Values in a Strongly Typed DataSet Problem When a column in a database has a null value, you want the value in the DataSet to be a string indicating ... Create the typed DataSet without null annotation. CategoriesDS_AnnotatedNull ds = new CategoriesDS_AnnotatedNull( ); // Fill the Categories table within DataSet. da.Fil...

Ngày tải lên: 14/12/2013, 18:16

... Modifying Data Using a Strongly Typed DataSet In Chapter 10 , you saw how to create and use a strongly typed DataSet class named MyDataSet. You can use objects of this class to represent ... MyDataSet.CustomersDataTable myDataTable = myDataSet1.Customers; // create a new DataRow in myDataTable using the // NewCustomersRow() method of myDataTable MyDataSet.Custom...

Ngày tải lên: 24/12/2013, 01:17

... using a type parameter in a manner similar to that used when defining a generic class. In this way, you can define generalized methods that are typesafe, and avoid the overhead of casting (and ... Tree: 2. Tree<char> charTree = BuildTree<char>('Z', 'X', &apos ;A& apos;, 'M', 'Z', 'M', 'N'); charTree.WalkTree();...

Ngày tải lên: 24/12/2013, 09:16

... 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 ... you've entered all the mandatory details, and you can choose to save your details by clicking OK, or you can click Advanced to enter additional details such as the connection timeout...

Ngày tải lên: 21/01/2014, 07:20

... sqlDataAdapter1.Fill (dataSet1 1, "Products"); sqlConnection1.Close(); System.Data.DataTable myDataTable = dataSet1 1.Tables["Products"]; foreach (System.Data.DataRow myDataRow in myDataTable.Rows) ... You'll use the second step, so go ahead and click the Generate Dataset link. The Generate Dataset dialog box is then displayed, as shown in Figure 10.14 ....

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

... social, and governance issues can have a material impact on many of the key determinants of a company’s strength and capability. Staff Morale, Enthusiasm, and Creativity People want to feel that ... financial assurance (to cover hazardous waste man- agement activities), and storm water management. Voluntary activities may include community outreach, auditing, public disclosure, habitat...

Ngày tải lên: 19/02/2014, 21:20

... normal security • Query GUARD_STATUS column in V$DATABASE. • Database guard level is set to ALL by broker automatically on the logical standby database. • Database guard level applies to all ... DATABASE GUARD command keywords: – ALL: prevents users from making changes to any data in the database. – STANDBY: prevents users from making changes to any data maintained by Data Guard SQL Apply....

Ngày tải lên: 09/12/2013, 16:15