Working with XML Data in .NET

Generator QR Code in .NET Working with XML Data
Working with XML Data
.NET qrcode development on .net
generate, create qr barcode none for .net projects
Validating XML Documents
Denso QR Bar Code barcode library for .net
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Having the ability to define the structure of an XML document and then validate the XML document against its defined structure is an important element of being able to exchange documents between disparate systems. The .NET Framework offers the ability to perform validation against a document type definition (DTD) or schema. This section explores XML document validation using the XmlValidatingReader class.
Bar Code barcode library in .net
Using Barcode scanner for .net vs 2010 Control to read, scan read, scan image in .net vs 2010 applications.
Visual .net bar code generating on .net
generate, create bar code none on .net projects
The XmlValidatingReader class performs forward-only validation of a stream of XML. The XmlValidatingReader constructor can be passed to an XmlReader, a string, or a stream. This class has a ValidationType property that can be set to Auto, DTD, None, Schema, or XDR. If the setting is set to None, this class becomes an XmlTextReader. In the next example, the file in Listing 9.1 is validated using the following code:
Private Sub Button16_Click( _ ByVal sender As System.Object, _ ByVal e As System.EventArgs) _ Handles Button16.Click Dim vr As New XmlValidatingReader( _ New XmlTextReader( C:\xmltest.XML )) vr.ValidationType = ValidationType.DTD Dim xd As New XmlDocument() xd.Load(vr) Response.Write( Valid Document!<br> ) vr.Close() End Sub
Denso QR Bar Code generating with .net
using barcode creation for an form control to generate, create qr code image in an form applications.
This code simply opens the XML file with an XmlTextReader, and the reader is used as the input to the XmlValidatingReader. Since this code has an embedded DTD, the document is validated. In the next test, the input file has been modified.
QR-Code barcode library in
using .net framework tomake qr barcode with web,windows application
< XML version= 1.0 encoding= utf-8 > <!DOCTYPE myRoot [ <!ELEMENT myRoot ANY> <!ELEMENT myChild ANY> <!ELEMENT myGrandChild EMPTY> <!ATTLIST myChild ChildID ID #REQUIRED >
Encode bar code for .net
using visual studio .net crystal todisplay barcode on web,windows application
VS .NET upc a integrating for .net
generate, create upc a none for .net projects
]> <myRoot> <myChild ChildID= ref-1 > <myGrandChild/> <myGrandChild>Hi</myGrandChild> <myGrandChild/> </myChild> <myChild ChildID= ref-2 > <myGrandChild/> <myGrandChild/> <myGrandChild/> </myChild> <myChild ChildID= ref-3 > <myGrandChild/> <myGrandChild/> <myGrandChild/> </myChild> <myChild ChildID= ref-4 > <myGrandChild/> <myGrandChild/> <myGrandChild/> </myChild> </myRoot>
2D Barcode barcode library on .net
generate, create matrix barcode none on .net projects
The DTD states that the myGrandChild element must be empty, but one of the myGrandChild elements of myChild ref-1 has a myGrandChild element containing the word Hi. This causes an error, as shown in Figure 9.14. Attempts to read from the XmlValidatingRead should always occur within a Try/Catch block to catch possible validation exceptions.
Pdf417 2d Barcode maker for .net
using visual studio .net todevelop pdf 417 for web,windows application
Figure 9.14 The error that is generated when an invalid document is validated using the XmlValidatingReader.
Incoporate european article number 8 on .net
generate, create ean 8 none in .net projects
Working with XML Data
PDF 417 writer on microsoft excel
using barcode encoder for microsoft excel control to generate, create pdf417 2d barcode image in microsoft excel applications.
Lab 9.1: Working with XML Data
Bar Code barcode library for java
using barcode printer for birt reports control to generate, create bar code image in birt reports applications.
You have a requirement to be able to save a customer s orders, along with the order details, to an XML file. The XML file must have only three levels of elements. The first level is the root element, which is called Customers, and has attributes for the CustomerID, CompanyName, and ContactName. The second level is the Orders element, which contains an Orders element for each order that the customer has. The third level contains Order_Details elements, which contain an element for each item in the order. The XML document essentially contains an element for each row of each table, and all column data must be presented as XML attributes. In this lab, you modify the DataGrid from the previous lab, to add a Save Orders button to the DataGrid; this button writes the current customer s orders to an XML file. Retrieving the Data In this section, you modify the Bindtable method to retrieve the customers, orders and order details for all customers, and store the results in a Session variable. DataRelations also is created to join these tables together, and the ColumnMapping must be set to be an attribute for every column in the DataSet. 1. Start this lab by opening the OrderEntrySolution from Lab 8.1. 2. Right-click the OrderEntrySolution in the Solution Explorer, and click Check Out. This checks out the complete solution. 3. Open the CustomerList.aspx.vb code-behind page. 4. In the Bindtable method, modify the code to check for the existence of a Session variable named Customers. If it exists, assign the Session variable to a DataSet. 5. If the Session variable does not exist, populate a new DataSet with Customers, Orders, and Order Details from the Northwind SQL database. Add relations between the Customers and Orders tables, and between the Orders and Order Details tables. 6. Add a loop, which enumerates all tables and all columns of the DataSet, setting the ColumnMapping to Attribute. 7. Store the DataSet in the Customers Session variable. Your code should look like the following:
Use ecc200 in visual basic
using barcode printer for .net framework control to generate, create barcode data matrix image in .net framework applications.
Denso QR Bar Code printer with microsoft excel
using barcode implementation for microsoft excel control to generate, create qrcode image in microsoft excel applications.
Control upc-a image with visual
generate, create upc-a none for vb projects
Microsoft Word gs1 - 13 maker for microsoft word
using word documents toadd ean-13 supplement 2 for web,windows application