本文整理汇总了VB.NET中System.Windows.Forms.BindingSource类的典型用法代码示例。如果您正苦于以下问题：VB.NET BindingSource类的具体用法？VB.NET BindingSource怎么用？VB.NET BindingSource使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了BindingSource类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Form1
' 导入命名空间
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Text
Imports System.Windows.Forms
Public Class Form1
Inherits Form
<STAThread()> _
Shared Sub Main()
Application.EnableVisualStyles()
Application.Run(New Form1())
End Sub
Public Sub New()
End Sub
Private textBox1 As TextBox
Private WithEvents button1 As Button
Private listBox1 As ListBox
Private components As IContainer
Private binding1 As BindingSource
Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
listBox1 = New ListBox()
textBox1 = New TextBox()
binding1 = New BindingSource()
button1 = New Button()
listBox1.Location = New Point(140, 25)
listBox1.Size = New Size(123, 160)
textBox1.Location = New Point(23, 70)
textBox1.Size = New Size(100, 20)
textBox1.Text = "Wingdings"
button1.Location = New Point(23, 25)
button1.Size = New Size(75, 23)
button1.Text = "Search"
Me.ClientSize = New Size(292, 266)
Me.Controls.Add(Me.button1)
Me.Controls.Add(Me.textBox1)
Me.Controls.Add(Me.listBox1)
Dim fonts As New MyFontList()
Dim i As Integer
For i = 0 To FontFamily.Families.Length - 1
If FontFamily.Families(i).IsStyleAvailable(FontStyle.Regular) Then
fonts.Add(New Font(FontFamily.Families(i), 11.0F, FontStyle.Regular))
End If
Next i
binding1.DataSource = fonts
listBox1.DataSource = binding1
listBox1.DisplayMember = "Name"
End Sub
Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) _
Handles button1.Click
If binding1.SupportsSearching <> True Then
MessageBox.Show("Cannot search the list.")
Else
Dim foundIndex As Integer = binding1.Find("Name", textBox1.Text)
If foundIndex > -1 Then
listBox1.SelectedIndex = foundIndex
Else
MessageBox.Show("Font was not found.")
End If
End If
End Sub
End Class
Public Class MyFontList
Inherits BindingList(Of Font)
Protected Overrides ReadOnly Property SupportsSearchingCore() As Boolean
Get
Return True
End Get
End Property
Protected Overrides Function FindCore(ByVal prop As PropertyDescriptor, _
ByVal key As Object) As Integer
' Ignore the prop value and search by family name.
Dim i As Integer
While i < Count
If Items(i).FontFamily.Name.ToLower() = CStr(key).ToLower() Then
Return i
End If
i += 1
End While
Return -1
End Function
End Class