Super slow C# custom control

Question

I\'ve made a custom control, it\'s a FlowLayoutPanel, into which I put a bunch of other custom controls (just Buttons, each with three Labels and a PictureBox overlayed)

Answer 1

The layout logic required for 5k controls will be too much for any type of wrapping panel. You might want to look into a different type of control designed the hold thousands of entries - something like a DataGridView.

The DataGridView has several different column types available that should work for the type of data you're displaying (images, buttons, labels). Since your database query looks to return a DataTable, you could simply bind that directly to your DataGridView and remove the loop.