Microsoft Access 2010 Bible

Part IV: Professional Database Development

1038

Here is a sample label definition:

<group id=“grpFonts” label=“Settings”>

<labelControl id=“lbl1” label=“Font Things” />

<separator id=“s1”/>

<labelControl id=“lc2” label=“Choose Font Settings” />

<check box id=“chk1” label=“Bold” onAction=“SetBold”/>

<check box id=“chk2” label=“Italics” onAction=“SetItalics”/>

</group>

This XML contains three labels, a separator, and two check boxes. The text in each of these labels

is hard-coded, rather than returned by a callback procedure. Earlier, in the “Step 2: Write the call-

back routines” section, you read how to use the getLabel attribute to specify a callback that

returns a label’s text.

The Button control

The Button control is, perhaps, the most useful and fundamental of all of the ribbon controls. A

button is very simple. A button has a label, an imageMso attribute for setting the button’s image,

and an onAction attribute that names the callback routine. An example of button XML is

<button id=“MyButton1” size=“large”

label=“MyButton1”

imageMso=“OutlookGlobe”

onAction=“nyi” />

The nyi referenced in the onAction attribute is a simple procedure in the Chapter29.accdb

sample database, and stands for not yet implemented. This procedure is just a placeholder for

you to insert your own callback routine. The Button ribbon control does not support double-click

actions, so tying a button to a callback procedure is very simple.

Separators

A separator is a graphical element that divides items in a group, as shown in Figure 29.24.

Separators contain no text and appear as a vertical line within a group. By themselves, they’re not

very interesting, but they graphically separate controls that would otherwise be too close within a

group.

FIGURE 29.24

Separators provide a way to divide controls within a group.

Separator controls