c# - Wix CustomAction [C#] session.Message 在安装过程中不显示

Question

这是WIX脚本片段

<InstallExecuteSequence>
    <Custom Action="Warning" After="InstallFinalize">NOT INSTALLED</Custom>
</InstallExecuteSequence>
<CustomAction Id="Warning" BinaryKey="ExtendedActions" DllEntry="WarningAboutUpgrade" Execute="immediate" Return="check"/>
<Binary Id="ExtendedActions" SourceFile="$(var.ExtendedActions.TargetDir)$(var.ExtendedActions.TargetName).CA.dll" />

这是 C# 自定义操作代码

using Microsoft.Deployment.WindowsInstaller;

namespace ExtendedActions
{
    public class CustomActions
    {
        [CustomAction]
        public static ActionResult WarningAboutUpgrade(Session session)
        {
            session.Log($"Begin CustomAction WarningAboutUpgrade");
            session.Message(InstallMessage.Info, new Record { FormatString = "Product updated. To upgrade Project execute initHeating.ps1 }" });
            return ActionResult.Success;
        }
    }
}

安装过程中未显示消息；

Answer 1

那是因为您使用参数 InstallMessage.Info 调用了 session.Message。这会导致文本不会显示给用户。该消息可以在日志文件中找到。此行为是设计使然。

要存档您的目标，请将第一个参数更改为 InstallMessage.Warning 或 InstallMessage.Error

session.Message(InstallMessage.Warning, new Record 
{ 
  FormatString = "Product updated. To upgrade Project execute initHeating.ps1" 
});