Matrix table view in Custom visuals.

[Sundar1606]

I'm trying to build a custom visual, there i need the data like what we have in tables. I drag two column into "Summize Category"(Category name) and one column into "Measure Data". In dataview array contains categorical in that categories has multiple column. But values showing for only first category. Is there anything i need to tweak in dataviewmapping.

The following json structure is data roles and Data View Mappings 

{
  "dataRoles": [
    {
      "displayName": "Summize Category",
      "name": "myCategory",
      "kind": "Grouping"
    },
    {
      "displayName": "Measure Data",
      "name": "myMeasure",
      "kind": "Measure"
    }
  ],
  "dataViewMappings": [
    {
      "categorical": {
        "categories": {
          "for": {
            "in": "myCategory"
          },
          "dataReductionAlgorithm": {
            "top": {}
          }
        },
        "values": {
          "select": [
            {
              "bind": {
                "to": "myMeasure"
              }
            }
          ]
        }
      }
    }
  ]
}

Results of Data

"dataViews": [
    {
      "categorical": {
        "categories": {
          "0": {
            "source": {
              "roles": {
                "myCategory": true
              },
              "type": {
                "underlyingType": 1,
                "category": null
              },
              "displayName": "day",
              "queryName": "vthink_dev_database tipsData.day",
              "expr": {
                "_kind": 2,
                "source": {
                  "_kind": 0,
                  "entity": "vthink_dev_database tipsData"
                },
                "ref": "day"
              }
            },
            "values": [
              "Sun",
              "Sun",
              "Sun",
              "Sun",
              "Sun",
              "Sun",
              "Sun",
              "Sun",
              "Sun",
              "Sun",
              "Sun"
            ]
          },
          "1": {
            "source": {
              "roles": {
                "myCategory": true
              },
              "type": {
                "underlyingType": 260,
                "category": null
              },
              "format": "0",
              "displayName": "id",
              "queryName": "vthink_dev_database tipsData.id",
              "expr": {
                "_kind": 2,
                "source": {
                  "_kind": 0,
                  "entity": "vthink_dev_database tipsData"
                },
                "ref": "id"
              }
            }
          }
        }
      }
    }
  ]

[v-viig]

I think it'd be better to use table or matrix data-mappings instead of categorical:

{
    "dataRoles": [
        {
            "displayName": "Summize Category",
            "name": "myCategory",
            "kind": "Grouping"
        },
        {
            "displayName": "Measure Data",
            "name": "myMeasure",
            "kind": "Measure"
        }
    ],
    "dataViewMappings": [
        {
            "table": {
                "rows": {
                    "select": [
                        {
                            "for": {
                                "in": "myCategory"
                            }
                        },
                        {
                            "for": {
                                "in": "myMeasure"
                            }
                        }
                    ]
                }
            }
        }
    ]
}

Ignat Vilesov,

Software Engineer

Microsoft Power BI Custom Visuals

[email protected]