Microsoft’s Windows Installer has a built-in property UILevel upon User Interactive level.
The Wix Condition element can be specified for components, controls, features, and products. This UILevel Property will be used with Condition, and also with Custom Action. By using the property, the Silent mode can be detected and installation logic can be managed.
Table of Contents
Understand Property UILevel
The following table was from a Microsoft document explaining UILevel Property. The property defines the User Interface level that can be used to detect installation mode of Silent, Basic, Reduce UI, or Full UI Level.
| INSTALLUILEVEL | Numeric value | User interface level |
|---|---|---|
| INSTALLUILEVEL_NONE | 2 | Completely silent installation. |
| INSTALLUILEVEL_BASIC | 3 | Simple progress and error handling. |
| INSTALLUILEVEL_REDUCED | 4 | Authored UI, wizard dialogs suppressed. |
| INSTALLUILEVEL_FULL | 5 | Authored UI with wizards, progress, errors. |
Open wix source, and add the Conditions for UILevel
Case 1.
Run “Custom Action” only for Silent or Basic mode. If you want to run in Silent mode only, UILevel = 2 can be used.
<InstallExecuteSequence>
<Custom Action="RunCustomActionAOnlyForSilent" Before="InstallFinalize"><![CDATA[ UILevel < 4 ]]></Custom>
</InstallExecuteSequence>
Case 2.
Add a UILevel Condition to a Component.
<Directory Id="DesktopFolder" Name="Desktop">
<Component Id="AShortcutDesktop" Guid="88c3b696-04c8-481d-b361-0b1417ffb481">
<Condition><![CDATA[ UILevel < 4 ]]></Condition>
</Component>
</Directory>
Case 3.
Add a UILevel Condition to Feature Element.
<Feature Id='FeatureA' Level='2'>
<Condition Level="1"><![CDATA[ UILevel < 4 ]]></Condition>
<ComponentGroupRef Id="ComponentGroupA" />
</Feature>
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How to Create WiX Project in Visual Studio 2022
How to Create Launch Conditions in WiX Installer
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