本文整理匯總了VB.NET中System.Windows.Forms.DataGridViewCheckBoxColumn.ThreeState屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET DataGridViewCheckBoxColumn.ThreeState屬性的具體用法？VB.NET DataGridViewCheckBoxColumn.ThreeState怎麽用？VB.NET DataGridViewCheckBoxColumn.ThreeState使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.Windows.Forms.DataGridViewCheckBoxColumn的用法示例。
在下文中一共展示了DataGridViewCheckBoxColumn.ThreeState屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: TriValueVirtualCheckBox
' 導入命名空間
Imports System.IO
Imports System.Collections.Generic
Imports System.Windows.Forms
Public Class TriValueVirtualCheckBox
Inherits System.Windows.Forms.Form
Dim WithEvents dataGridView1 As New DataGridView
Const initialSize As Integer = 500
Dim store As New Dictionary(Of Integer, LightStatus)
Public Sub New()
MyBase.New()
Text = Me.GetType().Name
Dim index As Integer = 0
For index = 0 To initialSize
store.Add(index, LightStatus.Unknown)
Next
Controls.Add(dataGridView1)
dataGridView1.VirtualMode = True
dataGridView1.AllowUserToDeleteRows = False
dataGridView1.Columns.Add(CreateCheckBoxColumn())
dataGridView1.Rows.AddCopies(0, initialSize)
End Sub
Private Function CreateCheckBoxColumn() As DataGridViewCheckBoxColumn
Dim dataGridViewCheckBoxColumn1 _
As New DataGridViewCheckBoxColumn()
dataGridViewCheckBoxColumn1.HeaderText = "Lights On"
dataGridViewCheckBoxColumn1.TrueValue = LightStatus.TurnedOn
dataGridViewCheckBoxColumn1.FalseValue = LightStatus.TurnedOff
dataGridViewCheckBoxColumn1.IndeterminateValue = _
LightStatus.Unknown
dataGridViewCheckBoxColumn1.ThreeState = True
dataGridViewCheckBoxColumn1.ValueType = GetType(LightStatus)
Return dataGridViewCheckBoxColumn1
End Function
#Region "data store maintance"
Private Sub dataGridView1_CellValueNeeded(ByVal sender As Object, _
ByVal e As DataGridViewCellValueEventArgs) _
Handles dataGridView1.CellValueNeeded
e.Value = store(e.RowIndex)
End Sub
Private Sub dataGridView1_CellValuePushed(ByVal sender As Object, _
ByVal e As DataGridViewCellValueEventArgs) _
Handles dataGridView1.CellValuePushed
store.Item(e.RowIndex) = CType(e.Value, LightStatus)
End Sub
#End Region
<STAThreadAttribute()> _
Public Shared Sub Main()
Application.Run(New TriValueVirtualCheckBox())
End Sub
End Class
Public Enum LightStatus
Unknown
TurnedOn
TurnedOff
End Enum