в 16:40, 26 мая 2010

2010-05-26T16:40:06Z

Admin: 1 версия

2010-05-26T12:44:47Z

1 версия

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==Use Filter to filter Data Table==

<source lang="vbnet">
Imports System
Imports System.Data
Imports System.Data.SqlClient

public class MainClass
Shared Sub Main()
Dim thisConnection As New SqlConnection("server=(local)\SQLEXPRESS;" & _
"integrated security=sspi;database=MyDatabase")
" Sql Query
Dim sql As String = "SELECT ID, FirstName, LastName FROM Employee"
Try
" Create Data Adapter
Dim da As New SqlDataAdapter
da.SelectCommand = New SqlCommand(sql, thisConnection)
" Create and fill Dataset
Dim ds As New DataSet
da.Fill(ds, "Employee")
" Get the Data Tables Collection
Dim dtc As DataTableCollection = ds.Tables
" Get and Display First Data Table
" 1. Display header
Console.WriteLine("Results From Employee Table")
Console.WriteLine("FirstName".PadRight(25) & " | LastName")
" 2. Set display filter
Dim filter1 As String = "FirstName = "Joe""
" 3. Set sort
Dim sort1 As String = "LastName asc"
" 4. Display filtered and sorted data
For Each row As DataRow In dtc("Employee").Select(filter1, sort1)
Console.WriteLine("{0} | {1}", _
row("FirstName").ToString().PadRight(25), _
row("LastName"))
Next

Catch ex As SqlException
" Display error
Console.WriteLine("Error: " & ex.ToString())
Finally
" Close Connection
thisConnection.Close()
Console.WriteLine("Connection Closed")
End Try
End Sub
End Class

</source>

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VB.Net/Database ADO.net/Filter - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия