Dxdatagrid Export To Csv No Decimals

MIster jashon

5 min read

·

Oct 02, 2024

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Exporting DXDataGrid Data to CSV without Decimals

DevExpress's DXDataGrid is a powerful tool for displaying and manipulating data in your web applications. Often, you'll need to export this data in a user-friendly format, such as CSV. However, when dealing with numerical data, you may encounter unwanted decimal places in the exported CSV file. This can be a nuisance, especially when presenting clean and concise data.

This article will guide you through the process of exporting DXDataGrid data to CSV without decimal places. We'll explore the common approaches and solutions to achieve this.

Understanding the Issue

The presence of decimal places in your exported CSV file can stem from a few reasons:

• Data Type: Your data might inherently be stored as decimal numbers.
• Formatting: The DXDataGrid might be configured to display numbers with decimal places.
• Export Settings: The export options might not be configured to handle decimal formatting.

Solutions for Exporting without Decimals

Here's a breakdown of methods to eliminate unwanted decimal places in your exported CSV:

1. Data Transformation:

   The most straightforward approach is to modify the data before exporting it. This involves converting decimal numbers to integers before sending them to the CSV export function.

   Example (JavaScript):

   function exportData() {
       let gridData = gridInstance.getVisibleRows();
       let csvData = gridData.map(row => {
           return {
               // Assuming 'price' is a decimal field
               price: Math.round(row.price),
               // Other fields
           };
       });
       // Use the csvData array for exporting 
   }
   

2. DXDataGrid Formatting:

   DXDataGrid offers extensive formatting options for its columns. You can leverage these options to control the display of decimal values.

   Example (JavaScript):

   const gridOptions = {
       columns: [
           {
               dataField: 'price',
               dataType: 'number',
               format: {
                   // Display only whole numbers
                   precision: 0
               }
           }
           // Other columns
       ]
   };
   

3. Export Options:

   The DXDataGrid export options allow you to customize the formatting of the exported CSV. You can specify the desired number of decimal places or even suppress them completely.

   Example (JavaScript):

   gridInstance.exportToCSV({
       fileName: "myData.csv",
       exportOptions: {
           customizeExportData: function (e) {
               // Loop through columns and format numbers
               e.columns.forEach(column => {
                   if (column.dataField === 'price') {
                       column.dataField = Math.round(column.dataField);
                   }
               });
           }
       }
   });
   

4. Custom Export Logic:

   If you need more intricate control over the export process or if the built-in options don't meet your specific requirements, you can implement custom export logic.

   Example (JavaScript):

   function exportData() {
       let gridData = gridInstance.getVisibleRows();
       let csvContent = "Price,OtherField1,OtherField2\n";
       gridData.forEach(row => {
           csvContent += `${Math.round(row.price)},${row.otherField1},${row.otherField2}\n`;
       });
   
       // Create a downloadable file (see various download methods)
       const blob = new Blob([csvContent], { type: 'text/csv' });
       const url = window.URL.createObjectURL(blob);
       const link = document.createElement('a');
       link.href = url;
       link.setAttribute('download', 'myData.csv');
       document.body.appendChild(link);
       link.click();
   }
   

Choosing the Right Approach

The best approach depends on your specific needs and preferences. If you need to modify the displayed data in the grid itself, data formatting is the way to go. If you only want to control the exported data, export options or custom export logic might be better suited.

Conclusion

Exporting DXDataGrid data to CSV without decimals is achievable with various methods. By understanding the reasons behind the decimal issues and utilizing the appropriate solution, you can ensure clean and user-friendly CSV exports. Remember to choose the method that best suits your needs and coding style.