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有一個名爲cboEndUser的組合框。當我選擇組合框中的項目時,這個函數被調用。 cboEndUser由錯誤從'InternalField'類型到'String'類型的轉換無效
填充cboEndUser.Items.Add(New itemData(oRec.Fields("FullName").Value, oRec("ContactID")))
項目數據是一個類。
Public Class itemData
Public _item As String
Public _itemData As Object
Public Sub New(ByVal item As String, ByVal data As Object)
_item = item
_itemData = data
End Sub
Public Overrides Function ToString() As String
Return _item
End Function
End Class
Private Sub cboEndUser_SelectedIndexChanged(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles cboEndUser.SelectedIndexChanged
If cboEndUser.SelectedIndex <> -1 Then
PopulateSerialNumberArray(CInt(txtCustomerID.Text), (cboEndUser.SelectedItem)._itemData)
End If
End Sub
獲取在線路PopulateSerialNumberArray誤差(CINT(txtCustomerID.Text),(cboEndUser.SelectedItem)._的ItemData)。 errow是從'InternalField'類型到'String'類型的轉換無效。
Public Sub PopulateSerialNumberArray(ByRef plCustomerID As Integer, ByRef plContactID As String)
End Sub
是的。我改變了第二個參數(cboEndUser.SelectedItem)._ itemData.ToString。謝謝 – user2194838