AI-powered Report Localization in Visual Studio Designer

• Sep 11, 2025
• 3 minutes to read

AI-powered Report Localization allows you to translate report elements directly within the Visual Studio Report Designer. With the DevExpress AI-powered Assistant, you can connect to Azure OpenAI or OpenAI services and automatically localize report text into the target language.

DevExpress AI Assistant for Visual Studio

The DevExpress Unified Component Installer installs the AI-powered Assistant for Visual Studio extension.

Configure AI Services

Go to Tools → Options → DevExpress → AI Assistant to open AI Assistant options.

Option	Description
Endpoint URL	The service endpoint used to connect to Azure OpenAI. For OpenAI connections, this option must be empty.
API Key	A personal access key required to authenticate requests to the AI service.
Model Name	The identifier of the AI model (for example, gpt-4o-mini).
Enable Logging	If enabled, the extension records request and response details for diagnostic purposes. Logs are stored in the following folder: C:\Documents and Settings<UserName>\AppData\Local\DevExpress\AI_Assistant_VSIX
Enable Prompt Caching	If enabled, previously used prompts and responses are cached to improve performance and reduce repeated requests.

Warning

Some OpenAI models (for example, GPT-5, o1, and o3 series) do not support the Temperature parameter. To avoid runtime exceptions when targeting these models, set the Temperature to 1. The value is ignored by the service, but this setting prevents validation/compatibility errors.

Configure Localization Options

Option	Description
Temperature	Controls randomness in AI output and produces more deterministic results. Higher values increase variation. The default value is 0.

Localize Reports

1. Open a report.

2. In the smart tag menu, select “Edit Localization…” to open the Localization Editor.

   

3. Add the language and click Localize with AI.

   

4. Review translated strings and click OK or Apply.

5. Click Yes to confirm.

   

Troubleshooting

Localize with AI Button Is Not Displayed

Possible Cause

The DevExpress AI-powered Assistant for Visual Studio extension is disabled.

Solution

Open the Extension Manager in Visual Studio (Extensions → Manage Extensions…). Switch to the Installed tab and enable the DevExpress AI-powered Assistant for Visual Studio extension. Restart Visual Studio.

HTTP 400 (Unsupported Value)

Possible Cause

Some OpenAI models (for example, GPT-5, o1, and o3 series) do not support the Temperature parameter.

Solution

Open AI Assistant Options and check Model Name and Temperature settings. If the selected model does not accept the Temperature, set the Temperature to 1 to avoid errors, or switch to a supported model (for example, gpt-4o-mini).

HTTP 404 (Deployment Not Found)

Possible Cause

The specified model deployment does not exist. This may happen if the deployment name is incorrect, if the deployment was recently created and is not yet active, or if it was deleted.

Solution

Open AI Assistant Options and check the Model Name setting.