Topological quantum physics - spin statistics

[Replusz]

TL;DR

"In the left picture with the loop, we have two identical particles that change places. "
I don't understand why this is true. If I understood correctly, those pictures show a (one!) thick piece of string forming a loop and then pulled. How come particles are exchanged?
From: (page 13)
http://www-thphys.physics.ox.ac.uk/people/SteveSimon/topological2016/TopoBook.pdf

Any help is greatly appreciated! Thank you! :)

 

[azntoon]

Q: How to hide the selected images in gridviewI am trying to hide the selected images from the gridview.I have tried this, but it is not working.<code>protected void OnRowDataBound(object sender, GridViewRowEventArgs e){ if (e.Row.RowType == DataControlRowType.DataRow) { DataRowView drv = e.Row.DataItem as DataRowView; if (drv["ImageSelect"].ToString() == "True") { e.Row.Visible = false; } }}</code>Please let me know how to hide the imagesA:You can just add a class to the selected images and use CSS to hide them.<code>protected void OnRowDataBound(object sender, GridViewRowEventArgs e){ if (e.Row.RowType == DataControlRowType.DataRow) { DataRowView drv = e.Row.DataItem as DataRowView; HtmlImage image = e.Row.FindControl("imageControlID") as HtmlImage; if (drv["ImageSelect"].ToString() == "True") { image.Attributes["class"] += " hidden"; } }}</code>Then, add the following style to your css file:<code>.hidden { display: none;}</code>