Saving comport number in combobox index

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Is it possbile to once user selected hes CommPort Number from combobox , it will be saved and when programm will be reruned - value in combobox will be saved, so

.PortName = cboComPort.Text

will work without pre-selecton

What I have tried:

Dim Portnames As String() = SerialPort.GetPortNames
If Portnames.Length = 0 Then
    MsgBox("Сперва подключите устройство")

    Me.Close()
    Exit Sub
End If
cboComPort.Items.AddRange(Portnames)
cboComPort.Text = Portnames(0)

Posted 29-Jun-17 20:17pm

JeezyWonder

Updated 2-Jul-17 23:19pm

v3

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Ralf Meier 30-Jun-17 2:37am

Of course is it possible.
What you have to do is (because this happens at runtime) to store this selection-value into your own file.
If you re-start your application you should load first those file-Content into your application ...

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KarstenK · Accepted Answer · 2017-07-02T23:19:00

Solution 1

To store simple value you normally use the registry. In this article from Microsoft about Registry.GetValue youfind explanation and some sample code. You must load and save these settings at startup or exit of your program.

Posted 2-Jul-17 23:19pm

KarstenK