exportCSV

public exportTable = (filtered: any) => {
    const { dataSource, filteredRecordCount, totalRecordCount, searchText } = this.state;
    const header = dataSource.columns.map((x: any) => x.Label);
    const visibility = dataSource.columns.map((x: any) => x.Visible);
    let count;
    let search;
    const processRow = (row: any) => {
      if (row instanceof Object) {
        row = Object.keys(row).map((key: any) => row[key]);
      }

      let finalVal = '';

      for (let i = 0; i < row.length; i++) {
        if (visibility[i]) {
          let innerValue = row[i] === null || row[i] === undefined ? '' : row[i].toString();
          if (moment(row[i], moment.ISO_8601, true).isValid()) {
            innerValue = moment(row[i]).format('MMMM Do YYYY, h:mm:ss a');
          }

          let result = innerValue.replace(/"/g, '""');

          if (result.search(/("|,|\n)/g) >= 0) {
            result = `"${result}"`;
          }

          if (i > 0) {
            finalVal += ',';
          }

          finalVal += result;
        }
      }

      return `${finalVal}\n`;
    };

    let csvFile = '';
    if (header.length > 0) {
      csvFile += processRow(header);
    }
    if (filtered) {
      count = filteredRecordCount;
      search = searchText;
    } else {
      count = totalRecordCount;
      search = '';
    }

    dataSource.getAllRecords(count, 0, search)
      .then(({ Payload }: any) => {
        Payload.forEach((row: any) => {
          csvFile += processRow(row);
        });
      }).then(() => {
        const blob = new Blob([`\uFEFF${csvFile}`], {
          type: 'text/csv;charset=utf-8;'
        });
        const fileURL = URL.createObjectURL(blob);
        const downloadLink = document.createElement('a');
        downloadLink.setAttribute('href', fileURL);
        downloadLink.setAttribute('download', 'data.csv');
        downloadLink.click();
        URL.revokeObjectURL(fileURL);
      });
  }