Custom UI - ComboBox with ListItems that publish to a Windows Registry key.

[JClayton-TAIT]

I am trying to figure out (in either v3 or v4) how to create a custom dialog that has a simple ComboBox with 4 ListItem's. The value of this ComboBox would get published to a Windows Registry key during the installation.

[robmen]

If using MSI UI, I think this is a matter of adding temporary rows to the correct table. You probably need to do so before the page is visible as well because I don't think custom actions can modify the content of the current page.

If you're using a custom Bootstrapper Application then use your UI framework of choice.

[JClayton-TAIT]

How would you go about passing the chosen value of a ComboBox to a CustomAction DLL then?

[BMurri]

How would you go about passing the chosen value of a ComboBox to a CustomAction DLL then?

Via an MSI property. If you are referring to a ComboBox in a Windows Installer UI the name of the property your custom action should look at will likely be the value of the Property attribute of the ComboBox element.

[JClayton-TAIT]

I have the following as an example, but not sure what the C# DLL should look like exactly. I don't have the project examples available in Visual Studio to add a Custom Action for some reason.
Is the below even close?
`

<UI>
  <Dialog Id="ComboBoxDialog" Width="370" Height="270" Title="ComboBox Dialog">
    <Control Id="ComboBox" Type="ComboBox" X="40" Y="90" Width="290" Height="18" Property="COMBOBOXPROP">
      <ComboBox Property="COMBOBOXPROP">
        <ListItem Text="Option 1" Value="1" />
        <ListItem Text="Option 2" Value="2" />
        <ListItem Text="Option 3" Value="3" />
        <ListItem Text="Option 4" Value="4" />
      </ComboBox>
      <Publish Property="COMBOBOXPROP" Value="[ComboBox]" Order="1">1</Publish>
      <Publish Event="EndDialog" Value="Return" Order="2">1</Publish>
    </Control>
  </Dialog>
</UI>

<Binary Id="MyCustomAction" SourceFile="MyCustomAction.dll" />
<CustomAction Id="ExecuteCustomAction" BinaryKey="MyCustomAction" DllEntry="MyCustomAction" Execute="differed" />

<InstallExecuteSequence>
  <Custom Action="ExecuteCustomAction" Before="InstallFinalize">COMBOBOXPROP</Custom>
</InstallExecuteSequence>

`

[BMurri]

If the custom action is written in C#, you will probably need to have your SourceFile point to "MyCustomAction.CA.dll". Inside of your custom action, you will get the value by accessing session["COMBOBOXPROP"] which will return a string.