SharePoint Column Formatting – use JSON to show column data in a pop-up window

Sometimes a SharePoint column has too much information, which eventually stretches rows and distorts the look. An example below is a Multiple lines of text type column:

This simple JSON code is useful to hide noncrucial information, while still allowing easy access to that data by hovering your mouse cursor over it.

  "$schema": "",
  "elmType": "div",
  "style": {
    "display": "=if(@currentField, '','none')",
    "font-size": "12px"
  "txtContent": "Hover to see more",
  "customCardProps": {
    "formatter": {
      "elmType": "div",
      "txtContent": "@currentField",
      "style": {
        "padding": "5px 5px 5px 5px",
        "border": "solid",
        "border-radius": "2px",
        "border-width": "1px",
        "box-shadow": "0 0 2px 0"
    "openOnEvent": "hover",
    "directionalHint": "bottomCenter",
    "isBeakVisible": false

This Post Has One Comment

  1. Wiebke

    Thanks so much – this is exactly what I was looking for.
    I am wondering, how I can implement this in the gallery view? For the list view it works fine, but it wont adapt it for hte gallery view… Thanks much for your help!

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