CODEWITHSUNDEEP
javascriptextjs
nkuhta
nkuhta

Reputation: 11148

ExtJS4: Columns hiding. Too slow

In different data types I need to hide some columns (not one) from grid. I'm using column.hide() method, but it works too slow.

If I set hidden property to the column, I don't know method, that will refresh grid view.

If I do grid.view.refresh() - header is still there.

How can I refresh grid after setting hidden:true properties?

Or some other way...

Upvotes: 0

Views: 2705

Answers (1)

atott
atott

Reputation: 890

I had the same problem. I need to establish visibility and the size for columns. If I use standard methods, then it takes 24 seconds (~120 columns).

My solution:

var grid = ...;
for (var i = 0; i < grid.columns.length; i++) {
    var column = grid.columns[i];
    column.hidden = false // or true, instead column.setVisible(bool);
    column.width = 100 // instead column.setWidth(100);
}
grid.headerCt.updateLayout();

Now it takes 114 ms instead 24 seconds.

Upvotes: 2

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