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  1. API reference
  2. Welcome
    1. Component overview
    2. Quick start
    3. System requirements
    4. Troubleshooting
    5. Managing license keys
    6. Migrating from WebDataRocks to Flexmonster
  3. Connecting to Data Source
    1. JSON
      1. Connecting to JSON
      2. Connecting to JSON using Flexmonster Data Server
      3. Data types in JSON
    2. CSV
      1. Connecting to CSV
      2. Connecting to CSV using Flexmonster Data Server
      3. Data types in CSV
    3. Database
      1. Connecting to SQL databases
      2. Connecting to a MySQL database
      3. Connecting to a Microsoft SQL Server database
      4. Connecting to a PostgreSQL database
      5. Connecting to an Oracle database
      6. Connecting to other databases
    4. MongoDB
      1. Introduction to Flexmonster MongoDB Connector
      2. Getting started with the MongoDB Connector
      3. Embedding the MongoDB Connector into the server
    5. Microsoft Analysis Services
      1. Connecting to Microsoft Analysis Services
      2. Getting started with the Accelerator
      3. Installing the Accelerator as a Windows service
      4. Referring the Accelerator as a DLL
      5. Configuring the authentication process
      6. Configuring a secure HTTPS connection
      7. Troubleshooting
    6. Pentaho Mondrian
      1. Connecting to Pentaho Mondrian
      2. Getting started with the Accelerator
      3. Configuring Mondrian roles
      4. Configuring username/password protection
      5. Configuring a secure HTTPS connection
      6. Troubleshooting
    7. Elasticsearch
      1. Connecting to Elasticsearch
      2. Configuring the mapping
    8. Custom data source API
      1. Introduction to the custom data source API
      2. A quick overview of a sample Node.js server
      3. A quick overview of a sample .NET Core server
      4. Implementing the custom data source API server
      5. Implementing filters
      6. Supporting more aggregation functions
      7. Returning data for the drill-through view
    9. Flexmonster Data Server
      1. Getting started with Flexmonster Data Server
      2. Installation guide
      3. Configurations reference
      4. Data sources guide
      5. Security and authorization guide
      6. The Data Server as a DLL
        1. Getting started with the Data Server as a DLL
        2. Referring the Data Server as a DLL
        3. Implementing the API controller
        4. DLL configurations reference
  4. Security
    1. Security in Flexmonster
    2. Security aspects of connecting to an OLAP cube
      1. Ways of connecting to an OLAP cube
      2. The data transfer process
      3. Data security
      4. Data access management
  5. Configuring report
    1. What is a report
    2. Data source
    3. Slice
    4. Options
    5. Mapping
    6. Number formatting
    7. Conditional formatting
    8. Set the report for the component
    9. Get the report from the component
    10. Date and time formatting
    11. Configuring global options
    12. Export and print
    13. Calculated values
    14. Custom sorting
  6. Integration with frameworks
    1. Available tutorials
    2. Integration with AngularJS (v1.x)
    3. Integration with Angular
    4. Integration with React
    5. Integration with React Native
    6. Integration with Vue
    7. Integration with Python
      1. Integration with Django
      2. Integration with Jupyter Notebook
    8. Integration with R Shiny
    9. Integration with Webpack
    10. Integration with ASP.NET
    11. Integration with jQuery
    12. Integration with JSP
    13. Integration with TypeScript
    14. Integration with Ionic
    15. Integration with RequireJS
    16. Integration with PhoneGap
  7. Charts
    1. Flexmonster Pivot Charts
    2. Integration with Highcharts
    3. Integration with Google Charts
    4. Integration with FusionCharts
    5. Integration with any charting library
  8. Customizing
    1. Customizing the Toolbar
    2. Customizing appearance
    3. Customizing the context menu
    4. Customizing the grid
    5. Localizing the component
  9. Updating to the latest version
    1. Updating to the latest version
    2. Release notes
    3. Migration guide from 2.7 to 2.8
    4. Migration guide from 2.6 to 2.7
    5. Migration guide from 2.5 to 2.6
    6. Migration guide from 2.4 to 2.5
    7. Migration guide from 2.3 to 2.4
    8. Migration guide from 2.2 to 2.3
    9. Documentation for older versions
Table of contents

DLL configurations reference

This guide describes configurations available for Flexmonster.DataServer.Core.dll. For the Data Server DLL, it is possible to configure data sources and set the data refresh time.

Available configurations

Flexmonster.DataServer.Core.dll can be configured via the ASP.NET configuration file (e.g., appsettings.json). Except configurations for Flexmonster Data Server, it can contain any other settings needed for the project, but they do not conflict with each other. The Data Server configuration properties are the following:

  • "DataSources" – Array of objects. Allows configuring the data sources. Each object has the following properties:
    • "Type" – String. The type of the data source: "json", "csv", "database", or your custom type.
    • "DatabaseType" (optional) – String. The type of the database: "mysql", "mssql", "postgresql", or "oracle". Only for the "database" data source type.
    • "ConnectionString" (optional) – String. A connection string for the database. Only for the "database" data source type.
    • "Indexes" – Object. Contains a list of datasets. Each dataset is represented by a "key": "value" pair, where "key" is a dataset name, and "value" is an object. The "value" can either be null (only for the custom data source type) or have the following properties:
      • "Path" (optional) – String. The path to the file with data. Only for "json" and "csv" data source types.
      • "Query" (optional) – String. The query to execute (e.g., "SELECT * FROM tablename"). Only for the "database" data source type.
      • "Delimiter" (optional) – String. Defines the specific fields separator to split each CSV row. There is no need to define it if the CSV fields are separated by ,. This property is required only if another character separates fields. Default value: ",".
      • "DecimalSeparator" (optional) – String. "DecimalSeparator" should be defined if the comma used to separate decimal parts of numbers (e.g., 3,14). Default value: ".".
  • "DataStorageOptions" (optional) – Object. Allows configuring options for data storage. It has the following properties:
    • "DataRefreshTime" (optional) – Number. Defines how often the data is reloaded from a file or a database. The refresh time is set in minutes. If "DataRefreshTime" is not specified, the data will not be reloaded.
    • "CacheSizeLimit" (optional) – Number. The maximum number of cached server responses for every index defined in the "DataSources" property. When set to 0, the Data Server does not cache the responses. Default value: 100.


Here is an example of the configured appsettings.json file with the custom parser:

"DataSources": [
"Type": "custom-parser",
"Indexes": {
"custom-index": null
"Type": "json",
"Indexes": {
"first-json-index": {
"Path": "data/data.json"
"second-json-index": {
"Path": "data/another-data.json"
"Type": "csv",
"Indexes": {
"csv-index": {
"Path": "data/data.csv",
"Delimiter": ";",
"DecimalSeparator": "."
"DataStorageOptions": {
"DataRefreshTime": 60,
"CacheSizeLimit": 150