.Net MAUI - Admin Privileges on Windows-CodePudding

Using .Net MAUI in Visual studio preview i am unable to run things that require administrator privileges for a Windows application.

I have tried the following:

Open Visual studio preview as an administrator
Setup app.manifest and .csproj with the following:

app.manifest

<?xml version="1.0" encoding="utf-8"?>
<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
    <security>
      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
        <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
      </requestedPrivileges>
    </security>
  </trustInfo>
</assembly>

.csproj

<ApplicationManifest>app.manifest</ApplicationManifest>

I have a very similar WPF application, that also runs in .net 6 where admin privileges works if you run Visual studio as an administrator.

CodePudding user response：

You're on the right track but you need another ingredient. Open the package.appxmanifest file with a text editor and make sure that the Capabilities node looks like this

<Capabilities>
    <rescap:Capability Name="runFullTrust" />
    <rescap:Capability Name="allowElevation" />
  </Capabilities>

I've added the allowElevation one.

Then in your app.manifest add this part right under the assembly node

<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
        <security>
            <requestedPrivileges>
                <requestedExecutionLevel level="requireAdministrator" uiAccess="false"/>
            </requestedPrivileges>
        </security>
    </trustInfo>

You can tweak the level as needed. It seems that if you set the uiAccess to true that is not supported. Also, elevation is only available from WinAppSdk 1.1 and on:

Windows 11 - May 10, 2022—KB5013943 (OS Build 22000.675)
Windows 10 - May 10, 2022—KB5013942 (OS Builds 19042.1706, 19043.1706, and 19044.1706)

See: https://docs.microsoft.com/windows/apps/windows-app-sdk/stable-channel#elevation