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By Yuriy, 02/21/2012 1:04 AM

Infragistics UltraWebGrid offers rich client-side programming model, but often it can be extremally slow. As an example consider a simple task: Given a particular Row ID hide the rest of the grid rows, keeping only this row visible.

Using UltraWebGrid’s CSOM (Client Side Object Model) JavaScript code looks like this:

var oGrid = igtbl_getGridById('xMyGrid');    // Get reference to grid object

for (var sRowID in oGrid.Rows) {   // Looping thru all rows in grid's rows collection

   if (sRowID != sSelectedRowID) {   // If current row ID is not given ID
      igtbl_getRowById(sRowID).setHidden(true) // Get reference to row and hide it
   }

}

The code works – it really does. But to loop thru 50 rows in this manner can take 10-15 seconds, not something your user will be happy about when instant action is expected. Continue reading 'Speed up UltraWebGrid with direct DOM access'»