How can Combobox selection change Checkbox isChecked

JonathanDewalt

Hello,  I can do this blindfolded with the old ArcObjects and windows forms.  But am either getting old or something because it has me stumped with the new pro DAML model.   I have a combobox defined in DAML that resides on the ribbon.  I also have a checkbox.  The comobox contains a list of point-based feature layers.  What I want to happen, is when a user selects a layer from the combobox, I want the checkbox isChecked to be set to true if the selected layer contains selected features.  I have no problem getting the selection feature count but I have no idea how to get to the checkbox to set its value.  Is there a way to reference the checkbox from the combobox?  I have also created a variable in the module that both can see controls can see but changes to the variable don't migrate back to the checkbox.  In the old days, I would either directly reference the checkbox from the combobox or have a public event that the checkbox is listening for.

CharlesMacleod

Ribbon controls defined in DAML are a bit different from _user_ controls defined in XAML (ie via WPF) as u mention. One possibility is to store a reference to the ribbon checkbox in your Module. U will also have to deal with the situation of a/the combo box being clicked before the checkbox on the ribbon has been loaded (ie Ribbon controls are typically null until they are clicked).

Something like....

internal class Module1 : Module
  {
    private static Module1 _this = null;
    //Capture the checkbox here
    public CheckBox CheckBox { get; set; } = null;

//Eg a ribbon or "DAML" combo
internal class ComboBox1 : ComboBox {
 ...
 protected override void OnSelectionChange(ComboBoxItem item) {
   //have we been "made" before the checkbox?
   if (Module1.Current.CheckBox == null)
    //load it then
    _  = FrameworkApplication.GetPlugInWrapper("ProAppModule1_CheckBox1");

   //Check/Uncheck
   Module1.Current.CheckBox.IsChecked = !Module1.Current.CheckBox.IsChecked;
   ...

//DAML Checkbox on the ribbon
internal class CheckBox1 : CheckBox {

  public CheckBox1() {
    //wire up the Module property
    Module1.Current.CheckBox = this;
  }
  //handle on click for when the user _does_ actually click it
  protected override void OnClick() {
    //TODO - whatever u need to do to keep everything in-sync
    //...
    base.OnClick();
  }