ArcGIS Engine Developer Guide

BUILDING APPLICATIONS WITH WINDOWS CONTROLS
Handling form resize
When the form is resized at run time the PageLayoutControl and MapControl do
not automatically resize themselves. To resize the controls so that they always fill
the extent of the form, you must anchor the controls to the form. If the
PageLayoutControl or MapControl contain a lot of data, redrawing this data
during the Form_Resize can be costly. To increase performance you can suppress
the data redraw until the resizing is complete. During the resize a stretched
bitmap will be drawn instead.
1. Display the form in design mode and select axPageLayoutControl1 from the
Properties window. Click the anchor property and anchor the
axPageLayoutControl to the top, left, bottom, and right of the form.
2. Anchor the axMapControl to the top, left, and bottom of the form.
338 • ArcGIS Engine Developer Guide