HtmlWidgetHelpers.TryGetWidgetModelContext(MessageActivity) Method
Definition
Important
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Attempts to extract an MCP UI update-model-context request from a message
activity's value. A widget can request that content be added to the
model context by reusing the messageBack mechanism (like Action.Submit
for adaptive cards).
Such a request arrives as a normal message activity whose value carries
the McpUiUpdateModelContextRequest payload.
This is fire-and-forget: the bot does not respond.
The helper is tolerant of two wire shapes: the raw request object, or an
envelope of the form { "type": "widgetModelContext", "data": <request> }.
public static Microsoft.Teams.Apps.HtmlWidget.McpUiUpdateModelContextRequest? TryGetWidgetModelContext(Microsoft.Teams.Apps.MessageActivity activity);static member TryGetWidgetModelContext : Microsoft.Teams.Apps.MessageActivity -> Microsoft.Teams.Apps.HtmlWidget.McpUiUpdateModelContextRequestPublic Shared Function TryGetWidgetModelContext (activity As MessageActivity) As McpUiUpdateModelContextRequestParameters
- activity
- MessageActivity
The received message activity.
Returns
The parsed request, or null if the activity value is not a valid update-model-context request.