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I have a large amount of data about 5000 to 6000 records.
I bind all these records on a combo box.
The problem is that the combo box is slow, with delays in expanding and selecting and sometimes hangs the page entirely.
Is there any solution to this problem, or an alternative control even?
I also tried RadComboBox, but resulted in the same problem.
The only way around this is to use a solution found here. The reason is that you are creating DOM elements for each row, which causes the browser to get a little resource hungry.
Loading the rows as required may be the only option for you.