[wix-users] Message Box in Wix Control & Custom Action

[Ven H]

Thanks a lot, Nir. I could make the second approach working. But from
within a custom action, I am not able to get it working. I have the
following code in my custom action. It is not displaying a message box.

 Record record = new Record();
 record.FormatString = "Test Message!";
 session.Message(InstallMessage.User, record);
 return ActionResult.Success;

In my Product.wxs, I have the following CustomAction element.

<CustomAction Id="CA_MsgBoxTest" BinaryKey="MsgBoxTestCADLL"
DllEntry="DisplayMsg" Execute="immediate"  Return="check"></CustomAction>

However, I don't have any Custom element defined inside
InstallExecuteSequence or InstallUISequence, since I am not sure how to
call this action only on button click. Please help.


Regards,
Venkatesh

On Wed, Apr 4, 2018 at 12:09 AM, Nir Bar <nir.bar at panel-sw.com> wrote:

> You can do both ways:
>
> For C# custom action, use session.Message() with InstallMessage.User,
> InstallMessage.Warning or InstallMessage.Error for first parameter.
> The function uses the underlying MsiProcessMessage() API which takes care
> of UI level.
>
> For the MSI approach, author a dialog to display the message you need and
> then in the PushButton publish a SpawnDialog event.
>
> --
> *Nir Bar, **Independent WiX Expert. Creator of-*
> *JetBA: WiX **WPF **Bootstrapper User Interface Framework*
> *JetBA++: **WiX Native **Bootstrapper User Interface Framework*
>
>
>