в 16:40, 26 мая 2010

2010-05-26T16:40:16Z

Admin: 1 версия

2010-05-26T12:49:40Z

1 версия

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==DataSet.GetXml()==

<source lang="vbnet">

Imports System.Data.SqlClient
Imports System.Data
Module Module1
Sub Main()
Try
Dim DS As New DataSet()
DS.ReadXml("Authors.XML")
Dim XMLContent As String = DS.GetXml()
Dim I As Integer
For I = 0 To DS.Tables(0).Rows.Count - 1
DS.Tables(0).Rows(I).Item("Author") = UCase(DS.Tables(0).Rows(I).Item("Author"))
Next
For I = 0 To DS.Tables(0).Rows.Count - 1
Console.WriteLine(DS.Tables(0).Rows(I).Item("Title"))
Console.WriteLine(DS.Tables(0).Rows(I).Item("Author"))
Console.WriteLine(DS.Tables(0).Rows(I).Item("Publisher"))
Console.WriteLine(DS.Tables(0).Rows(I).Item("Price"))
Next
DS.WriteXml("NewAuthors.xml")
Catch Ex As Exception
Console.WriteLine("Exception: " & Ex.Message)
Console.WriteLine(Ex.ToString)
Console.ReadLine()
End Try
End Sub
End Module

</source>

==DataSet.ReadXml==

<source lang="vbnet">

Imports System.Data.SqlClient
Imports System.Data
Module Module1
Sub Main()
Try
Dim DS As New DataSet()
DS.ReadXml("Authors.XML")
Dim XMLContent As String = DS.GetXml()
Dim I As Integer
For I = 0 To DS.Tables(0).Rows.Count - 1
Console.WriteLine(DS.Tables(0).Rows(I).Item("Title"))
Console.WriteLine(DS.Tables(0).Rows(I).Item("Author"))
Console.WriteLine(DS.Tables(0).Rows(I).Item("Publisher"))
Console.WriteLine(DS.Tables(0).Rows(I).Item("Price"))
Next
Catch Ex As Exception
Console.WriteLine("Exception: " & Ex.Message)
Console.WriteLine(Ex.ToString)
End Try
End Sub
End Module

</source>

==DataSet.ReadXmlSchema==

<source lang="vbnet">

Imports System
Imports System.Xml
Imports System.Xml.Schema
Imports System.IO
Imports System.Data

Public Class MainClass

Shared Sub Main()
Dim MyDS As New DataSet()
MyDS.ReadXmlSchema("book.xdr")
Console.WriteLine("Schema Loaded.")
Dim Table As DataTable
For Each Table In MyDS.Tables
Console.WriteLine("Table {0}, {1} Columns", _
Table.TableName, Table.Columns.Count)
Next
MyDS.ReadXml("book.xml", XmlReadMode.IgnoreSchema)
Console.WriteLine("Data Loaded.")
Console.WriteLine()
Dim Book As DataRow
For Each Book In MyDS.Tables("Book").Rows
Console.WriteLine("{0} : {1} - ${2}", Book("Title"))
Next
End Sub
End Class

"book.xdr
"<?xml version = "1.0"?>
"<Schema xmlns = "urn:schemas-microsoft-com:xml-data">
" <ElementType name = "title" content = "textOnly"
" model = "closed" />
" <ElementType name = "book" content = "eltOnly" model = "closed">
" <element type = "title" minOccurs = "1" maxOccurs = "1" />
" </ElementType>
" <ElementType name = "books" content = "eltOnly" model = "closed">
" <element type = "book" minOccurs = "0" maxOccurs = "*" />
" </ElementType>
"</Schema>
"File: book.xml
"<?xml version = "1.0"?>
"<books xmlns = "x-schema:book.xdr">
" <book>
" <title>C# How to Program</title>
" </book>
" <book>
" <title>Java How to Program, 4/e</title>
" </book>
" <book>
" <title>Visual Basic .NET How to Program</title>
" </book>
" <book>
" <title>Advanced Java 2 Platform How to Program</title>
" </book>
" <book>
" <title>Python How to Program</title>
" </book>
"</books>

</source>

==DataSet.Tables==

<source lang="vbnet">
Imports System
Imports System.Xml
Imports System.Xml.Schema
Imports System.IO
Imports System.Data.SqlClient
Imports System.Collections
Imports System.Data

Public Class MainClass

Shared Sub Main()
Dim da As New SqlDataAdapter( _
"SELECT ID, FirstName, LastName FROM Employee", _
"Server=(local)\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI")
Dim ds As New DataSet("Employee")
da.FillSchema(ds, SchemaType.Source)
ds.ReadXml("Employee.xml")
Dim Table As DataTable = ds.Tables(0)
Dim numCols As Integer = Table.Columns.Count
Dim Row As DataRow
For Each Row In Table.Rows
Dim i As Integer
For i = 0 To numCols - 1
Console.WriteLine(Table.Columns(i).ColumnName & " = " & Row(i))
Next
Console.WriteLine()
Next
End Sub
End Class

</source>

==DataSet.WriteXmlSchema==

<source lang="vbnet">
Imports System
Imports System.Xml
Imports System.Xml.Schema
Imports System.IO
Imports System.Collections
Imports System.Data
Public Class MainClass

Shared Sub Main()
Dim nsArray As String() = {""}
Dim MyDS As DataSet = New DataSet()
MyDS.ReadXml("book.xml")
MyDS.WriteXmlSchema("InferredSchema.xds")
End Sub
End Class

</source>

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в 16:40, 26 мая 2010

Admin: 1 версия