ScrollControl/SplitterControl

[Administrator]

I set up a splitter control with a control derived from ScrollControl as the component. If I set the VScrollBar.SmallChange to a value != 1 and do a click on the VScrollBar, the correct scroll is done. But after that the VScrollBar.SmallChange value is reset to 1.

You can reproduce this behaviour in the SplitterControlDemo sample, if you set the SmallChange value in the constructor to 100 or another value.

Is there a way to correct this behaviour?

I''m using version 1.6.1.8.

Regards

Peter

[Peter]

Any suggestions?

Regards

Peter

[Administrator]

Hi Peter,

you can set
ScrollControl.AllowIncreaseSmallChange = false;

Otherwise if it is set to true (default) the scroll control tries to modify the scrolling behavior and change the SmallChange value and increase it the longer the scroll arrow was pressed. After that it will be reset to 1.

With
ScrollControl.AllowIncreaseSmallChange = false;
the SmallChange value will be left alone.

Stefan

[Peter]

That property seems to be not working. There is the same behaviour if it''s set to true or false.

[Administrator]

It works while you keep the mouse down on the arrow, but I found a problem with the handling of the .EndScroll case in OnVScroll where the values gets set to 1.

We will get that fixed for the next service patch. If you want to work around this issue now you would have to override OnVScroll, call the base class version and check for the .EndScroll case. At that moment you could reapply your .SmallChange value.

Stefan

[Peter]

Thank you for your response, the workaround works fine for me.

Regards

Peter