How to drilldown in Dashboard Studio using the value of a hidden table column

[edgarrity]

We have a dashboard created with the XML Dashboard Classic editor which presents a table of alerts and allows the user to open a second dashboard to see the details.  The parent dashboard uses the drill-down feature to link to the child dashboard.  The value of a hidden column in the row the user clicked on is passed to the child dashboard in the URL string.  We are porting this to Dashboard Studio and need to know how to link using the value from a hidden column?  It seems that the column must be visible for the drilldown link to work.

[renjith_nair · Accepted solution]

Here is a  run anywhere example.

One of the columns is defined as _hidden so that it wont be displayed in the table. _fields are considered to be internal fields and there is an option to hide them. The second panel displays the value of the taken while clicking on each row

{
    "visualizations": {
        "viz_oIMuXymL": {
            "type": "splunk.table",
            "dataSources": {
                "primary": "ds_yjf97sDt"
            },
            "options": {
                "showInternalFields": false
            },
            "eventHandlers": [
                {
                    "type": "drilldown.setToken",
                    "options": {
                        "tokens": [
                            {
                                "token": "HiddenValue",
                                "key": "row._hidden.value"
                            }
                        ]
                    }
                }
            ],
            "title": ""
        },
        "viz_gyqHTdIv": {
            "type": "splunk.markdown",
            "options": {
                "markdown": "**Value of Clicked row : $HiddenValue$**",
                "backgroundColor": "#ffffff",
                "fontFamily": "Times New Roman",
                "fontSize": "extraLarge"
            }
        }
    },
    "dataSources": {
        "ds_yjf97sDt": {
            "type": "ds.search",
            "options": {
                "query": "| makeresults count=5\n| streamstats count\n| eval value=\"Value\".count\n| eval _hidden=\"Hidden\".count\n| fields - count",
                "queryParameters": {
                    "earliest": "-24h@h",
                    "latest": "now"
                }
            },
            "name": "Search_1"
        }
    },
    "defaults": {
        "dataSources": {
            "ds.search": {
                "options": {
                    "queryParameters": {
                        "latest": "$global_time.latest$",
                        "earliest": "$global_time.earliest$"
                    }
                }
            }
        }
    },
    "inputs": {},
    "layout": {
        "type": "grid",
        "options": {
            "width": 1440,
            "height": 960
        },
        "structure": [
            {
                "item": "viz_oIMuXymL",
                "type": "block",
                "position": {
                    "x": 0,
                    "y": 0,
                    "w": 1440,
                    "h": 400
                }
            },
            {
                "item": "viz_gyqHTdIv",
                "type": "block",
                "position": {
                    "x": 0,
                    "y": 400,
                    "w": 1440,
                    "h": 400
                }
            }
        ],
        "globalInputs": []
    },
    "description": "",
    "title": "drilldown_studio"
}

[edgarrity]

Thanks.  That worked.