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Action items
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Name | Description
Action Items | Each action item (TWebActionItem) performs a specific task in response to a given type of request message. Action items can completely respond to a request or perform part of the response and allow other action items to complete the job. Action items can send the HTTP response message for the request, or simply set up part of the response for other action items to complete. If a response is completed by the action items but not sent, the Web server application sends the response message. Set up action items for your Web server application by Adding actions to the dispatcher... more
Choosing a Default Action Item | Only one of the action items can be the default action item. The default action item is selected by setting its Default property to True. When the Default property of an action item is set to True, the Default property for the previous default action item (if any) is set to False. When the dispatcher searches its list of action items to choose one to handle a request, it stores the name of the default action item. If the request has not been fully handled when the dispatcher reaches the end of its list of action items,... more
Determining When Action Items Fire | Most properties of the action item determine when the dispatcher selects it to handle an HTTP request message. To set the properties of an action item, you must first bring up the action editor: select the Actions property of the dispatcher in the Object Inspector and click on the ellipsis. When an action is selected in the action editor, its properties can be modified in the Object Inspector. The action item includes properties that specify The target URL The request method type Other properties that influence when the dispatcher fires an action item are described in Enabling and disabling... more
Enabling and Disabling Action Items | Each action item has an Enabled property that can be used to enable or disable that action item. By setting Enabled to False, you disable the action item so that it is not considered by the dispatcher when it looks for an action item to handle a request. A BeforeDispatch event handler can control which action items should process a request by changing the Enabled property of the action items before the dispatcher begins matching them to the request message. Warning: Changing the Enabled property of an action during execution may cause unexpected results for subsequent requests. If the... more
Responding to Request Messages with Action Items | The real work of the Web server application is performed by action items when they execute. When the Web dispatcher fires an action item, that action item can respond to the current request message in two ways: If the action item has an associated producer component as the value of its Producer property, that producer automatically assigns the Content of the response message using its Content method. The Internet page of the Tool palette includes a number of content producer components that can help construct an HTML page for the content of the response message. After the producer has assigned... more
The Request Method Type | The MethodType property of an action item indicates what type of request messages it can process. The dispatcher compares the MethodType property of an action item to the MethodType of the request message. MethodType can take one of the following values: MethodType values
The Target URL | The dispatcher compares the PathInfo property of an action item to the PathInfo of the request message. The value of this property should be the path information portion of the URL for all requests that the action item is prepared to handle. For example, given this URL,

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