Create a DataTable

Mời các bạn tham khảo bài giảng Lập trình trên Windows với Microsoft® .NET: Bài 10 của Hồ Hoàn Kiếm sau đây để nắm bắt được những nội dung về SqlCommand; DataSet; Create a DataTable; Insert data into DataTable; DataView; DataBinding.

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[ Team LiB ] Recipe 7.16 Dynamically Creating Crystal Reports Problem You need to define a DataTable at runtime and bind it to a Crystal Report. Solution Create a DataAdapter and use it to fill a DataTable with a subset of records

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[ Team LiB ] Recipe 10.15 Creating a Table in the Database from a DataTable Schema Problem You need to create a table in a database from an existing DataTable schema. Solution Use the CreateTableFromSchema( ) method shown in this solution.

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[ Team LiB ] Recipe 5.3 Converting a DataReader to a DataSet Problem You need to transfer data from a DataReader to a DataSet. Solution Create a DataTable schema in the destination DataSet using the schema information returned by the GetSchemaTable( ) method of the DataReader.

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[ Team LiB ] Recipe 3.9 Finding Rows in a DataView Problem You need to find a row or group of rows in a DataView meeting certain criteria. Solution Use a sorted DataView to find rows using columns that are not part of the primary key. The sample code contains two event handlers: Form.Load Sets up the sample by creating a DataTable containing the Orders table from the Northwind database. A DataView of the table sorted by the CustomerID and EmployeeID is created. Find Button.Click Uses the FindRows( ) method of the DataView to retrieve the array of DataRowView objects...

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[ Team LiB ] Recipe 3.10 Selecting the Top n Rows in a DataTable Problem You want to create a grid that shows the t op five rows in a DataTable, based on the values in one of the columns. Solution Use an appropriate sort order with a DataView filter.

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The Fill() method then creates a DataTable in the DataSet with the specified name and runs the SELECT statement. The DataTable created in your DataSet is then populated with the rows retrieved by the SELECT statement.

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Creating and Using a DataRelation Object In this section, you'll learn how to create a DataRelation object to define a relationship between two DataTable objects that hold some rows from the Customers and Orders tables

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