More Resourceful Property Grid

Posted on February 11, 2024

Just a quick note to say that it is now possible to define wxPropertyGrid controls in XRC, e.g. here is a minimal example:

<object class="wxPropertyGrid" name="grid_music">
    <property class="wxStringProperty">
        <label>Name</label>
        <value>Now And Then</value>
    </property>
    <property class="wxIntProperty">
        <label>Year</label>
        <value>2023</value>
    </property>
</object>

Support for wxPropertyGrid must be explicitly enabled by registering the XRC handler for it, so the code loading the XRC file including the fragment above would look like this:

// Include declaration of the XRC handler for wxPropertyGrid.
#include "wx/xrc/xh_propgrid.h"

bool MyApp::OnInit() {
    auto xrc = wxXmlResource::Get();

    // Initialize all standard handlers.
    xrc->InitAllHandlers();

    // And add this one which is not standard.
    xrc->AddHandler(new wxPropertyGridXmlHandler);

    if ( !xrc->Load("propgrid.xrc") )
    {
        wxLogError("XRC file couldn't be loaded.");
        return false;
    }

    ...
}

The updated sample contains a more complex example of wxPropertyGridManager defined in XRC and the documentation has been updated to describe the supported elements.

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