When configuring the size of splitters and the panes that they contain, you can use one of the three possible value types:
Absolute Size - When you set the Width or Height property to an integer value or a string that ends in "px", the size of the splitter or initial size of the pane is set absolutely:
Percent Size - When you set the Width or Height property to a string that ends in "%", the size of the splitter or pane is set to a percentage of the size of its container:
Free size - When you do not set the Width or Height property, the size of the splitter or pane is calculated automatically. Use this option when you don't need absolute size control or you want a pane to allocate all of the free size when the splitter is resized:
- When you use free size on a splitter control, the splitter size is calculated automatically from the browser (or container) when the control is rendered.
- When you use free size on a pane control, the splitter calculates the pane size based on what space is remaining after allocating space to absolutely-sized or percent-sized panes. If all panes are free-sized, then they all start initially the same size.
When using Percent Size on a splitter's Height property, the HeightOffset property specifies a number of pixels that are subtracted from the splitter height.
You can also set the width of the split bars by setting the SplitBarsSize property. This property can only be set as an absolute values.
For a live example showing the effects of various combinations of absolute, percent, and free size settings, see Initial Size.