i have already answered your support ticket on the subject, for convenience I will paste my answer here as well:
The reasons for the experienced issues are as follows:
- The Splitter (in your case with ID="RadSplitterControl") is not able to calculate its size in percentages properly if it has initially not visible parent (like PageView) and so you have to configured its ResizeWithParentPane property to "False" and Width and Height to 100%.
- When the Splitter's size is set in percentages it take those percengages from its parent size, so if there are any siblings to the Splitter their size is added to those 100% (e.g 100% + 90px content).In order to avoid the scroll-bars in such a scenario you can either use one additional Splitter, which RadPanes will divide the height of the inner Splitter (ID="RadSplitterControl") and the height of the other content or to wrap the other content into additional div and exclude its height through the Splitters HeightOffset property.
- When there is a nested Splitter, the Scrolling of its parent pane should be set to "None" (Splitter with ID="RadPaneMultipage")
I hope this helps.
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