how to generate and print barcode in c# windows application FOR XML AUTO in C#.NET

Drawer Denso QR Bar Code in C#.NET FOR XML AUTO

The AUTO mode differs from RAW in that it natively supports hierarchies. However, the hierarchies have to be simple because AUTO doesn t support more than one path of branches. For example, the following hierarchy works: Customer Order Order row But the following does not work because it has multiple paths: Customer Order Order row Contacts In AUTO mode, each table included in the query gets its own element in the hierarchy and the name of the element is derived from the table alias used in the query. The hierarchy is created from the order of the columns returned by the query, not the order of the tables. Look at the query in the next example that returns customers with orders using FOR XML AUTO. Note that the join is performed from order to customer, but the customer is still above the order in the hierarchy. This is because the customer columns are listed before the order columns in the column list of the SELECT clause. Also note that each customer element is repeated a few times in the XML result. This is because the hierarchy is also built from the order of the rows in the result. That means you must make sure that the ORDER BY clause is

used correctly to group each order under its customer (in this example, you sort the rows by a unique identifier/GUID column in the table to get a random-looking sorting):

SELECT Customer.CustomerID AS Id ,Customer.AccountNumber ,"Order".SalesOrderID ,"Order".rowguid AS RowGuid FROM Sales.SalesOrderHeader AS "Order" RIGHT OUTER JOIN Sales.Customer AS Customer ON Customer.CustomerID = "Order".CustomerID WHERE Customer.CustomerID IN (1,2) ORDER BY "Order".rowguid FOR XML AUTO, ROOT('Customers');

Here is the XML result:

<Customers> <Customer Id="2" AccountNumber="AW00000002"> <Order SalesOrderID="49054" RowGuid="01C5EFDE-5C6E-47C9-B1AE-077937989297" /> <Order SalesOrderID="51728" RowGuid="C2B5D4CC-113E-4102-884B-22A6DACEEDE6" /> </Customer> <Customer Id="1" AccountNumber="AW00000001"> <Order SalesOrderID="46042" RowGuid="62991BDA-C42D-494F-9EF1-2754BEC25FAE" /> <Order SalesOrderID="43860" RowGuid="D2745233-B05B-409C-93BB-4451569F4253" /> <Order SalesOrderID="44501" RowGuid="1A116F86-71E4-40A2-A32C-4938D8977D26" /> </Customer> <Customer Id="2" AccountNumber="AW00000002"> <Order SalesOrderID="63198" RowGuid="C6C5306D-F416-433C-92CC-4DB4747DC133" /> <Order SalesOrderID="46976" RowGuid="8A533BE6-0669-470A-B361-796DD1CD0ED4" /> </Customer> <Customer Id="1" AccountNumber="AW00000001"> <Order SalesOrderID="45283" RowGuid="F57AB920-675E-4B1D-B43C-8EA091CF6F38" /> </Customer> <Customer Id="2" AccountNumber="AW00000002"> <Order SalesOrderID="47997" RowGuid="1FAAD98B-1DE0-4B80-A804-9FBBB6F289EB" /> <Order SalesOrderID="69488" RowGuid="50144563-A6B4-4857-9451-B229D21C7ED5" /> <Order SalesOrderID="50216" RowGuid="00A755D8-7BD9-4B12-AF58-E4EF22D39AA1" /> <Order SalesOrderID="57044" RowGuid="1841BF49-544C-4A8F-8ACE-F63DADA00314" /> </Customer> </Customers>

Here is the tabular result (created by omitting the FOR XML part of the query):

Id AccountNumber SalesOrderID RowGuid ----------- ------------- ------------ -----------------------------------2 2 1 1 AW00000002 AW00000002 AW00000001 AW00000001 49054 51728 46042 43860 01C5EFDE-5C6E-47C9-B1AE-077937989297 C2B5D4CC-113E-4102-884B-22A6DACEEDE6 62991BDA-C42D-494F-9EF1-2754BEC25FAE D2745233-B05B-409C-93BB-4451569F4253

1 2 2 1 2 2 2 2

44501 63198 46976 45283 47997 69488 50216 57044

1A116F86-71E4-40A2-A32C-4938D8977D26 C6C5306D-F416-433C-92CC-4DB4747DC133 8A533BE6-0669-470A-B361-796DD1CD0ED4 F57AB920-675E-4B1D-B43C-8EA091CF6F38 1FAAD98B-1DE0-4B80-A804-9FBBB6F289EB 50144563-A6B4-4857-9451-B229D21C7ED5 00A755D8-7BD9-4B12-AF58-E4EF22D39AA1 1841BF49-544C-4A8F-8ACE-F63DADA00314

To fix the problem shown in the previous example, you obviously just need to sort the result correctly. This might sound simple, but it is a really insidious, easy-to-miss bug that can sneak into your code if you re not careful. In the next example, you solve the problem by sorting by CustomerID to group all orders together that belong to a specific customer. Here, a little trick using a derived table called Orders to create an XML element between the Customer and Order elements is employed:

SELECT Customer.CustomerID AS Id ,Customer.AccountNumber ,Orders.X ,"Order".SalesOrderID ,"Order".rowguid AS RowGuid FROM Sales.SalesOrderHeader AS "Order" RIGHT OUTER JOIN Sales.Customer AS Customer ON Customer.CustomerID = "Order".CustomerID CROSS JOIN (SELECT NULL AS X) AS Orders WHERE Customer.CustomerID IN (1,2) ORDER BY Customer.CustomerID FOR XML AUTO, ROOT('Customers');

Here is the XML result:

<Customers> <Customer Id="1" AccountNumber="AW00000001"> <Orders> <Order SalesOrderID="43860" RowGuid="D2745233-B05B-409C-93BB-4451569F4253" /> <Order SalesOrderID="44501" RowGuid="1A116F86-71E4-40A2-A32C-4938D8977D26" /> <Order SalesOrderID="45283" RowGuid="F57AB920-675E-4B1D-B43C-8EA091CF6F38" /> <Order SalesOrderID="46042" RowGuid="62991BDA-C42D-494F-9EF1-2754BEC25FAE" /> </Orders> </Customer> <Customer Id="2" AccountNumber="AW00000002"> <Orders> <Order SalesOrderID="46976" RowGuid="8A533BE6-0669-470A-B361-796DD1CD0ED4" /> <Order SalesOrderID="47997" RowGuid="1FAAD98B-1DE0-4B80-A804-9FBBB6F289EB" /> <Order SalesOrderID="49054" RowGuid="01C5EFDE-5C6E-47C9-B1AE-077937989297" /> <Order SalesOrderID="50216" RowGuid="00A755D8-7BD9-4B12-AF58-E4EF22D39AA1" /> <Order SalesOrderID="51728" RowGuid="C2B5D4CC-113E-4102-884B-22A6DACEEDE6" /> <Order SalesOrderID="57044" RowGuid="1841BF49-544C-4A8F-8ACE-F63DADA00314" />

<Order SalesOrderID="63198" RowGuid="C6C5306D-F416-433C-92CC-4DB4747DC133" /> <Order SalesOrderID="69488" RowGuid="50144563-A6B4-4857-9451-B229D21C7ED5" /> </Orders> </Customer> </Customers>

Here is the tabular result (created by omitting the FOR XML part of the query):

Id AccountNumber X SalesOrderID RowGuid ----------- ------------- ----------- ------------ -----------------------------------1 1 1 1 2 2 2 2 2 2 2 2 AW00000001 AW00000001 AW00000001 AW00000001 AW00000002 AW00000002 AW00000002 AW00000002 AW00000002 AW00000002 AW00000002 AW00000002 NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL NULL 43860 44501 45283 46042 46976 47997 49054 50216 51728 57044 63198 69488 D2745233-B05B-409C-93BB-4451569F4253 1A116F86-71E4-40A2-A32C-4938D8977D26 F57AB920-675E-4B1D-B43C-8EA091CF6F38 62991BDA-C42D-494F-9EF1-2754BEC25FAE 8A533BE6-0669-470A-B361-796DD1CD0ED4 1FAAD98B-1DE0-4B80-A804-9FBBB6F289EB 01C5EFDE-5C6E-47C9-B1AE-077937989297 00A755D8-7BD9-4B12-AF58-E4EF22D39AA1 C2B5D4CC-113E-4102-884B-22A6DACEEDE6 1841BF49-544C-4A8F-8ACE-F63DADA00314 C6C5306D-F416-433C-92CC-4DB4747DC133 50144563-A6B4-4857-9451-B229D21C7ED5