I want to show different plugin documents when user click on different buttons.

I want to show different plugin documents when user click on different buttons. Can I use the "Insert Dynamic Plugin" for this? If so, what is the Trigger Variable for this, and how do I coding the buttons?

Yes, you could use the buttons to set a session variable and then show different plugins based on the session variable value.

I try to understand how this works.
1. I create a form for the buttons because I have no form before. Method = "POST".
2. I create two buttons - Type = "submit".
3. From the server-behavior tab, I select WebAssist-> Cookies-> Set Session Value.
4. As Trigger, I select "Button: 1 Pressed".
5. As a Session name, I write "view mode".
6. As Value, I write: "List".
Then I repeat steps 3-6 for the next button.
7. The section tag is highlighted. I choose WebAssist-> FrameworkBuilder-> Plugins-> Inser Dynamic Plugins.
8. As trigger Variable, I select "1" from the form [$ _POST ["1"].
Are these steps correct? Because I don't make it work. Is there any guide on what steps to take?

Your value for the dynamic plugin would be : $_SESSION["view mode"]

I wonder if this is the best solution.

What I am looking for is that the user can choose between two different view modes / layouts. This can be seen on many websites. Either the content is displayed as a list or it is displayed as blocks, such as the Public layout in the DataAssist Result Page.

Is there any server behavior for this, similar to Sort, or how to do this in the simplest way?

The simplest way is to save a session variable with the selection and use it to conditionally show one or the other. If you need help then I could show you how in a premier support ticket with screen sharing.

I have made another attempt. However, I receive the following error message in the browser:
Fatal error: Cannot use isset () on the result of an expression (you can use "null! == expression" instead) in /www/webvol16/z3/e7v7i55mki9ry4i/jonasn.se/public_html/aboutbeer/provningar/aktuella-provningar .php on line 43.

Here is the code that WA writes:
if(true){
// WebAssist Framework Builder Dynamic Plug-in: $WA_aktuella_provningar_lista_1584553123999
switch(isset(visningsform)?visningsform:""){
case "[Lista]":
$WA_aktuella_provningar_lista_1584553123999 = new WA_Include("../plugins/aktuella-provningar-lista.php");
break;
case "[Block]":
$WA_aktuella_provningar_lista_1584553123999 = new WA_Include("../plugins/aktuella-provningar-columns.php");
break;
default:
break;
}
if(isset($WA_aktuella_provningar_lista_1584553123999)){
require($WA_aktuella_provningar_lista_1584553123999->BaseName);
$WA_aktuella_provningar_lista_1584553123999->Initialize(true);
}
// End: WebAssist Framework Builder Dynamic Plug-in: $WA_aktuella_provningar_lista_1584553123999
}
?>
Line 43 is: switch(isset(visningsform)?visningsform:""){

switch(isset(visningsform)?visningsform:""){
Should be:
switch(isset($_SESSION["visningsform"])?$_SESSION["visningsform"]:""){

Thanks, No more error message.
But why is it that the plugin does not appear? Nothing happens when I press the buttons.

You are setting to:
"Block" or "Lista"

but your condition is looking for values:
"[Block]" or "[Lista]"

They need to match.