BlazorChatMessage.Role Property

Returns the role of the message owner.

Namespace: DevExpress.AIIntegration.Blazor.Chat

Assembly: DevExpress.AIIntegration.Blazor.Chat.v25.1.dll

NuGet Package: DevExpress.AIIntegration.Blazor.Chat

Declaration

public virtual ChatMessageRole Role { get; }

Property Value

Type	Description
ChatMessageRole	The owner role.

Available values:

Name	Description
User	Indicates that the message is sent by a user.
Assistant	Indicates that the message is generated by the assistant.
System	Indicates that the message is sent by the system.
Error	Indicates the error message.

Remarks

Use the Role property to determine who sent the message.

Razor

<DxAIChat CssClass="demo-chat">
    <MessageTemplate>
        <div class="@GetMessageClasses(context)">
            @if(context.Typing) {
                <span>Loading...</span>
            } else {
                <div class="demo-chat-content">
                    @context.Content
                </div>
            }
        </div>
    </MessageTemplate>
</DxAIChat>

@code {
    string GetMessageClasses(BlazorChatMessage message) {
        if(message.Role == ChatMessageRole.Assistant) {
            return "demo-chat-message demo-assistant-message";
        } else if(message.Role == ChatMessageRole.User) {
            return "demo-chat-message demo-user-message";
        } else if(message.Role == ChatMessageRole.Error) {
            return "demo-chat-message demo-error-message";
        }
        return "demo-chat-message";
    }
}

CSS

 .demo-chat {
    width: 100%;
    height: 400px;
}
     .demo-chat .demo-chat-message {
        padding: 10px;
        border-radius: 10px;
        width: calc(100% - 60px);
        box-shadow: 0px 2px 6px -2px;
    }
         .demo-chat .demo-chat-message.demo-assistant-message {
            background-color: rgba(76, 255, 0, 0.2);
            align-self: self-start;
        }
         .demo-chat .demo-chat-message.demo-user-message {
            background-color: #FFF;
            align-self: self-end;
        }
         .demo-chat .demo-chat-message.demo-error-message {
            background-color: rgb(255, 0, 0, 0.2);
            align-self: center;
        }

Run Demo: AI Chat - Customize Message Appearance View Example: AI Chat for Blazor - How to add DxAIChat component in Blazor, MAUI, WPF, and WinForms applications