Exporting data from a custom visual using powerbi-client javascript library

[technerd01]

Hello Team,

I have custom visual which is built on a HTMLTextAreaElement. The use case is, user should be able to enter any value in this custom visual and using powerbi-client javascript library I need to read the value from this custom visual.

var inputTextCustom = visuals.filter(function (visual) {
return visual.type === "inputTextXXXXXXX" && visual.name === "YYYYYYYYYYY";
})[0];

I am able to access the custom visual using the above code but I am unable to read the value from it.

I have tried using the below code to extract the data from the custom visual, but it does not work.

inputTextCustom.exportData(models.ExportDataType.Underlying, 500).then(handleExportData);

function handleExportData(result) {
   const resultData = parseData(result.data);
   console.log(resultData);
}

function parseData(data) {
   const result = [];
   data.split("\n").forEach(function (row) {
   if (!row) {
      return;
   }
   const rowArray = [];
   row.split(",").forEach(function (cell) {
   rowArray.push(cell);
   });

   result.push(rowArray);
});
return result;
}

Can someone please guide me with some sample code on how should I go about extracting the data from this custom visual?

Thank you!

[v-rzhou-msft · Accepted solution]

Hi @technerd01 ,

Power BI custom visuals and R visuals aren't currently supported to use export function in Power BI. Here I suggest you to try Power BI Rest API to export data from custom visual.

For reference: 

Exporting a page or a single visual

Depending on the type of export, you need to pass different attributes to the ExportReportPage object. 

Best Regards,
Rico Zhou

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.