出現(xiàn)這樣的原因,大部分是由于 無線網(wǎng)卡沒有安裝到位,接觸不良造成的。
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網(wǎng)卡可以多插幾次。如果這樣,問題沒有解決,帶著您的筆記本找網(wǎng)卡服務(wù)商,如果他們解決不了,
那問題可能就在于筆記本本身。帶著您的本本和卡找您的本本服務(wù)商。
'要使得引用System.Management有效,先通過菜單
'[項目]--[添加引用],在“.Net”選項卡里,選擇“System.Management”,單擊[確定]
Imports System.Management
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim MySearcher As New ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration")
For Each MySearcherObj As ManagementObject In MySearcher.Get
If CBool(MySearcherObj("IPEnabled")) Then
MsgBox(MySearcherObj("IPAddress")(0))
End If
Next
End Sub
End Class
Public Function EnumNetworkAdapters() As String
Try
Dim query As System.Management.ManagementObjectSearcher = New System.Management.ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration")
Dim queryCollection As System.Management.ManagementObjectCollection = query.Get()
Dim mo As New System.Management.ManagementObject
For Each mo In queryCollection
If IsDBNull(mo.Item("Description")) = False Then
EnumNetworkAdapters = mo.Item("Description") "|||"
End If
If IsDBNull(mo.Item("macaddress")) = False Then
If mo.Item("macaddress") "" Then
EnumNetworkAdapters = mo.Item("macaddress") "|||"
End If
End If
If IsDBNull(mo.Item("IPAddress")) = False Then
Dim temp As String
temp = Join(mo.Item("IPAddress"), ".")
If temp "" Then
EnumNetworkAdapters = temp "|||"
End If
End If
Next
Catch err AS Exception
EnumNetworkAdapters = err.Message err.StackTrace
End Try
End Function
網(wǎng)頁題目:vb.net讀取網(wǎng)卡地址 vb獲取網(wǎng)卡物理地址
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