Is there a property which I can use to determine how many rows in the wingrid are viewable by the user.
I only want to load and display rows which can be seen by the user.
So when the user scroll down I will load more rows.
You can determine which rows actually are visible. But it sounds like you want to know how many rows would fit in the grid before the rows are actually visible. There's certainly no easy way to do that.
If you want to the load the grid data on-demand, I recommend using the UltraDataSource. There's a sample of this included with NetAdvantage that loads a Million rows into the grid. Look for the Million Rows sample under UltraDataSource or in the samples explorer for the grid.
Hi, I think No.
You can use
row.VisibleIndex != -1
check to indicates whether row is visible or not.