這應該是一個快速的。Can .net組合框直接指向一個對象?
我想知道如果.net組合框可以指向一個對象的實例。
目前我填充組合框與此:
Private Sub validation_Load(sender As Object, e As EventArgs) Handles MyBase.Load
paramPairComboBox.ValueMember = "uniqueName"
paramPairComboBox.DisplayMember = "name"
paramPairComboBox.DataSource = payload.parameterPairs
End Sub ''validation_Load()
正如你所看到的,我必須使用一個字符串,它是專用於特定對象的ValueMember。
什麼是真正竊聽我的是,我必須這樣做:
Private Sub paramPairComboBox_SelectedIndexChanged(sender As Object, e As EventArgs) Handles paramPairComboBox.SelectedIndexChanged
Dim graphBuilder As GraphBuilder
Dim indexSearch As IndexFinder = New IndexFinder(paramPairComboBox.SelectedValue)
Dim pairIndex As Integer = payload.parameterPairs.FindIndex(AddressOf indexSearch.find)
indexSearch = Nothing
System.Diagnostics.Debug.Write(pairIndex)
Dim param1 As String = payload.parameterPairs(pairIndex).param1
Dim param2 As String = payload.parameterPairs(pairIndex).param2
graphBuilder = New GraphBuilder(payload.testData.table, payload.parameterPairs(pairIndex))
engineChart.Series.Clear()
engineChart.Series.Add(graphBuilder.getSeries())
engineChart.ResetAutoValues()
End Sub ''paramPairComboBox_SelectedIndexChanged
End Class
''' <summary>
''' Class to provide search functionality
''' </summary>
Class IndexFinder
Dim _s As String
Public Sub New(s As String)
_s = s
End Sub
''' <summary>
''' The search function
''' </summary>
''' <param name="pair"></param>
''' <returns></returns>
Public Function find(pair As LimitParameterPair) As Boolean
Return pair.uniqueName.Contains(_s)
End Function ''find()
End Class
綜上所述代碼,我要創建一個類看過那部功能有助於尋找對象的列表裏面是唯一的字符串。我覺得很麻煩。
所以基本上,有沒有什麼辦法來完成這樣的事情:
Private Sub validation_Load(sender As Object, e As EventArgs) Handles MyBase.Load
paramPairComboBox.ValueMember = Me (or) This (or something??)
paramPairComboBox.DisplayMember = "name"
paramPairComboBox.DataSource = payload.parameterPairs
End Sub ''validation_Load()
引用對象的實例「有效載荷」是什麼樣的對象,似乎是一個相當複雜的方式來找到相關項目 – Plutonix
我真的很抱歉,但我不能讓你說的正面或反面... –
你使用'payload.parameterPairs'作爲數據源 - 它是什麼?數據表,列表,別的東西? – Plutonix