Data Table In C# Tutorial Pdf Free, cbr 150 olx tamil nadu map

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HasErrors Indicates if there are any errors. Clear Clears all data from the table. Print . You can also access the child and parent relationship using ChildRelation and ParentRelation.To test this theory, I'll create two data tables, Customers and Orders, and set a relationship between them. It has the following important properties:. .. The Create OrdersTable method creates the Orders table with order Id, cust Id, Name, and Description columns and adds data it. The Constraints property provides access to all the constraints that a data table has. Besides creating a data table schema and adding rows to it, a data table has more to offer. To update the database a reconnection is required.

The following figure shows the ADO.NET objects at a glance:. Locale Gets or sets the locale information used to compare strings within the table. Table Returns the parent table. The following table shows some important methods of the DataSet class:. .. Delete Deletes the DataRow. dtColumn = new DataColumn(); dtColumn.DataType = System.Type.GetType("System.String"); dtColumn.ColumnName = "Description"; dtColumn.Caption = "DescriptionName"; ordersTable.Columns.Add(dtColumn); // Add ordersTable to the dataset dtSet.Tables.Add(ordersTable); // ADD two rows to the customer Id 1001 dtRow = ordersTable.NewRow(); dtRow["order Id"] = 0; dtRow["Name"] = "ASP Book"; dtRow["custId"] = 1001; dtRow["Description"] = "Same Day"; ordersTable.Rows.Add(dtRow); dtRow = ordersTable.NewRow(); dtRow["OrderId"] = 1; dtRow["Name"] = " C# Book"; dtRow["custId"] = 1001; dtRow["description"] = "2 DAY AIR"; ordersTable.Rows.Add(dtRow); // Add two rows to Customer id 1002 dtRow = ordersTable.NewRow(); dtRow["order Id"] = 2; dtRow["Name"] = "Data Quest"; dtRow["Description"] = "Monthly magazine"; dtRow["CustId"] = 1002; ordersTable.Rows.Add(dtRow); dtRow = ordersTable.NewRow(); dtRow["OrderId "] = 3; dtRow["Name"] = "PC Magazine"; dtRow["Description"] = "Monthly Magazine"; dtRow["CustId"] = 1003; ordersTable.Rows.Add(dtRow); // Add two rows to Customer id 1003 dtRow = ordersTable.NewRow(); dtRow["OrderId"] = 4; dtRow["Name"] = "PCMagazine"; dtRow["Description"] = "Monthly Magazine"; dtRow["custId"] = 1003; ordersTable.Rows.Add(dtRow); dtRow = ordersTable.NewRow(); dtRow["OrderId"] = 5; dtRow["Name"] = "C# Book"; dtRow["CustId"] = 1003; dtRow["Description"] = "2 Day Air "; ordersTable.Rows.Add(dtRow); } // This method creates a customer order relationship and data tables // To the data grid control using dataSet. LoadDataRow Finds and updates a specific row, or creates a new one, if not found any. Reset Resets the table to its original state. This object provides a connection oriented access to the data records in the database.

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