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ExpressPageControl:页面控制。
The tab control contains a set of tabs and a client
area. The client area of the control can contain any
number of other controls. Note that unlike the page
control, the tab control抯 client area is a single
panel. Thus, you cannot specify different page
contents for different tabs (unless you change the page
content dynamically in code).
The tab control is most likely to be used if you want
the same set of controls to be displayed within its
page. The content of controls can be dynamically
changed by handling the OnChange event. Thus, one of
the common applications of the tab control is to
display dataset records. Tabs display values of the
dataset field that can identify a record. Controls
within the page display values of other fields from the
selected record. Please refer to the Using the Tab
Control to Display Dataset Records topic for an example
of using the tab control in this manner. The image
below displays the tab control after completing the
steps listed in that topic.
You can also create more complex structures using the
tab control. See the image below for an example of
using the tab control within other tab controls.
The page control provides the same features as the tab
control. It also contains a set of tabs and a client
area. The only difference is that the page control
provides a separate page panel for each tab within it.
Thus, you can customize the content of each page
separately by dropping controls onto it. When
switching between tabs, the control automatically
displays the corresponding page.
Use the page control if you need different set of
controls to reside on each separate page. Using this
control allows you to break controls needed in your
application into categories. This also enables you to
save space on the form. See the image below for
examples of using the page control.
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