How to Handle Blank Charts Images when exporting XLSX documents to PDF format
Environment
| Version | Product | Author |
|---|---|---|
| 2024.1.124 | RadSpreadProcessing | Desislava Yordanova |
Description
When using the SDK example, Export Chart, the exported chart images might get exported as blank images in some cases. This article explains how to handle this undesired behavior.
| XLSX document with Charts | Exported PDF document with Blank charts |
|---|---|
 |  |
Solution
The SDK example uses the ChartModelToImageConverter class which is readily available in the Telerik.Windows.Controls.Spreadsheet assembly and uses internally the RadChartView control to visualize the chart and create an image.
If you are using different versions of Telerik products in your project, this can sometimes cause compatibility issues. Verify that all references to Telerik products in your project are the same version, including the suffix (for example, .40). If necessary, remove all references and add them again using the correct DLLs.
The main reason behind the exported blank charts is if their style is missing. This is typically the case when the NoXaml assemblies are referenced for Telerik.Windows.Controls.Spreadsheet and Telerik.Windows.Controls.Chart.
Verify that the Xaml assemblies are used from the UI for WPF suite. The Xaml assemblies embed all styles of the controls. As a result, the exported chart images render as expected.
