将 List(Of Object) 绑定到 DataRepeater 的正确方法是什么?你能为此提供示例代码吗?
我一直在为此绞尽脑汁,虽然我可以在转发器中显示一个已经填满的列表,但对列表的后续更改对 DataRepeater 没有影响。
最终,如果可能的话,我希望使用它来绑定字典,但我什至无法在这里获得基础知识。
在表单设计图面上添加了数据重复器,在 ItemTemplate 中带有 3 个标签和一个进度条。我尝试设置列表和中继器的代码(其中 DutData 是 DataRepeater)是:
Public Class BurnIn
Public Shared currentDuts As New Dictionary(Of UInteger, DeviceUnderTest) ' Collection of all current DUTs.
Dim bs As New BindingSource
Dim testTemp As Boolean = False
Dim testList As New List(Of DeviceUnderTest)
Private Sub BurnIn_Load() Handles Me.Load
'...
' Add two items to the dictionary and populate them
currentDuts.Add(0, New DeviceUnderTest(Me.user, 0))
currentDuts.Item(0).RackBay = "012345678901"
currentDuts.Item(0).AssemblySerial = "123456789"
currentDuts.Item(0).SetProgram(1, "Program1")
currentDuts.Add(currentDuts.Count, New DeviceUnderTest(Me.user, 1))
currentDuts.Item(1).RackBay = "109876543210"
currentDuts.Item(1).AssemblySerial = "1319A5126"
currentDuts.Item(1).SetProgram(1, "Program1")
' Copy the items to the test list.
testList.Add(currentDuts.Item(0))
testList.Add(currentDuts.Item(1))
testTemp = True
' Setup the binding source, data source and data bindings.
bs.DataSource = testList
LocationLabel.DataBindings.Add("Text", bs, "RackBay")
DutLabel.DataBindings.Add("Text", bs, "AssemblySerial")
ProgramLabel.DataBindings.Add("Text", bs, "Program")
DutProgress.DataBindings.Add("Value", bs, "Progress")
DutData.DataSource = testList
'...
Me.Show()
End Sub
然后测试添加或删除列表项:
Private Sub Button1_Click() Handles Button1.Click
If testTemp = False Then
' Add an item to the dictionary and populate it.
currentDuts.Add(currentDuts.Count, New DeviceUnderTest(Me.user, 1))
currentDuts.Item(1).RackBay = "109876543210"
currentDuts.Item(1).AssemblySerial = "1319A5126"
currentDuts.Item(1).SetProgram(1, "Program1")
' Copy the item to the test list.
testList.Add(currentDuts.Item(1))
testTemp = True
Else
' Remove the item from the dictionary and the list.
currentDuts.Remove(1)
testList.Remove(testList.Item(1))
testTemp = False
End If
End Sub
End Class