Dynamic Selection on Checkboxes?

Question

I want to make a new checkbox component that has the dynamic selection property capability found in the Xcelsius combo box component.  It would just tie to a cell and show checked or unchecked depending on whether the cell was a 0 or 1.
Is that currently supported in the Xcelsius SDK and if so, can someone help me with how that would look in the propertysheet?
From the combo box example, the way to tie "selectedItem" to the Excel is with:
case "selectedItem":
                              // User explicitly cleared binding, do not create another.
                              if ((bindingID == null) || (bindingID == ""))
                                   dataInsertEditor.enabled = true;      // Re-enable manual entry.
                                   // Fill the control back with current value instead of range address.
                                   propertyValues = proxy.getProperties([propertyName]);
                                   propertyObject = propertyValues[0];
                                   dataInsertEditor.text = String(propertyObject.value);
                                   // Make sure we set the property on the component as well.
                                   proxy.setProperty(propertyName, propertyObject.value);
                                   return;
                              // Disable the option to manually enter a value once the component is bound.
                              dataInsertEditor.enabled = false;
                              // Display the range address.
                              dataInsertEditor.text = proxy.getBindingDisplayName(bindingID);
                              // Excel spreadsheet binding:-
                              // BindingDirection.INPUT    - update the spreadsheet when the custom component "value" changes.
                              // InputBindings.ARRAY  - Write to multiple cells in the spreadsheet.
                              proxy.bind("selectedItem", null, bindingID, BindingDirection.INPUT, InputBindings.SINGLETON, "");
                              break;
How would that change if I want to tie it as a binary value to the checkbox's checked/unchecked state?
Edited by: Owen B on Jun 22, 2008 7:35 PM
Edited by: Owen B on Jun 23, 2008 2:49 PM

Answer 1

Hi Owen,
You should be able to do what you want with the Xcelsius 2008 Component SDK.
This is the line that sets up the component <--> spreadsheet binding (in this case update the spreadsheet when the component property changes).
proxy.bind("selectedItem", null, bindingID, BindingDirection.INPUT, InputBindings.SINGLETON, "");
To change so that the spreadsheet is also updated when the property changes do this instead:
proxy.bind("selectedItem", null, bindingID, BindingDirection.BOTH, InputBindings.SINGLETON, OutputBindings.SINGLETON);
Using Number or Boolean for the component property type should then work.
Regards,
Matt