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I am initilizing a grid that contains more than a few thousand columns. The columns are defined by a user of my system and there is no limit to what they can define.

The performance is extremely slow. Approximately 5 minutes for the grid to render. Is there an alternative that I can do to enhance the rendering of the table?

It appears as though the columns go through a method called recursivelyCreateColumns which in my case gets called thousands of times.

Any help is appreciated

user3446707
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    can you show some code please – Zach Starnes Jun 21 '18 at 21:09
  • welcome to [so], please go through how to create [mcve] – Paritosh Jun 22 '18 at 05:31
  • The code isn't anything special. We initialize the grid using new Grid(eGridDiv: HTMLElement, gridOptions: GridOptions, params?: GridParams): Grid the params argument contains the column definitions which in my case have thousands of columns. – user3446707 Jun 22 '18 at 12:48
  • Similar question, also mostly unanswered: https://stackoverflow.com/questions/40182683/ag-grid-large-dataset-render-time-slow. You may have better luck asking here: https://github.com/ag-grid/ag-grid/issues, but try to provide a test case that shows the problem. Nobody wants to debug a problem when they have to make their own test case. Unfortunately, they are not very responsive to issues at the moment, they are very busy and are prioritising their paid support (I think). – thirtydot Jun 22 '18 at 15:34

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