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Syncfusion Feedback

Fastest way to hide rows?

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49943 Sep 30,2006 01:27 PM UTC Oct 2,2006 06:58 PM UTC Windows Forms 1
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Tags: GridControl
Maxim Software Systems
Asked On September 30, 2006 01:27 PM UTC

I''m currently using a simple GridControl and need to hide a few dozen scattered rows once in a while. I''ve been repeatedly calling the SetRowHidden method, but it seems very slow. Is there a faster way to hide individual rows?

Administrator [Syncfusion]
Replied On October 2, 2006 06:58 PM UTC

Hi Don,

We have updated new logic that increases the performance while synchronizing the Hidden rows/cols with the scroll grid. It will be available in our coming 4.4 release.

GridScrollVisibleElementsMapper in GridScroll.cs (src\Base\Control)

#region NewHiddenScrollLogic
GridScrollVisibleElementsMapper visibleColumns = new GridScrollVisibleElementsMapper();
GridScrollVisibleElementsMapper visibleRows = new GridScrollVisibleElementsMapper();


///
/// Use this class if you have an array of rows or column elements
/// and you want to be able to hide a range of rows or columns. The
/// class uses binary trees to map from original to visible position
/// and vice versa.
///

internal class GridScrollVisibleElementsMapper
{
......
.......

Regards,
Calvin.

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