DataSource.NET  6.2.20.310828
Caplin.DataSource.Messaging.Page.IPageMessage Interface Reference

An instance of IPageElement represents an update to a region of a Page. More...

Inheritance diagram for Caplin.DataSource.Messaging.Page.IPageMessage:
Caplin.DataSource.Messaging.IMessage

Public Member Functions

void Set (int column, int row, string content)
 Updates the contents of the page at the specified location. More...
 

Properties

int Height [get, set]
 Gets or sets the height of the page, in text rows. More...
 
string PageType [get, set]
 Gets or sets the type of the page. More...
 
IList< IPageElementUpdatedElements [get]
 Gets a read-only list of the updated page elements. More...
 
int Width [get, set]
 Gets or sets the width of the page, in text columns. More...
 
- Properties inherited from Caplin.DataSource.Messaging.IMessage
bool Image [get, set]
 Gets or sets a boolean value indicating whether this IMessage represents an image or an update. More...
 
string Subject [get]
 Gets the subject of this message. More...
 

Detailed Description

An instance of IPageElement represents an update to a region of a Page.

An object implementing this interface can not be instantiated directly, but can be constructed using the IMessageFactory that is available on the IPublisher interface.

If you call Set more than once, and the page regions updated by one or more calls overlap, the updates are still held separately in the message; they are not merged together.

Member Function Documentation

void Caplin.DataSource.Messaging.Page.IPageMessage.Set ( int  column,
int  row,
string  content 
)

Updates the contents of the page at the specified location.

Parameters
columnThe column at which the content is to be updated. The leftmost column of the page is column 0.
rowThe row at which the content is/IPermissionMessage.cs#3 to be updated. The top row of the page is row 0.
contentThe page content to be placed at the specified row and column.

Property Documentation

int Caplin.DataSource.Messaging.Page.IPageMessage.Height
getset

Gets or sets the height of the page, in text rows.

This value is valid on all IPageMessage instances created using the IMessageFactory interface, however it may be undefined (and hence have a value of -1) on instances received by an implementation of ISubscriptionListener.

The first character on a page is at row zero. Therefore the maximum modifiable column is at row (Height - 1).

string Caplin.DataSource.Messaging.Page.IPageMessage.PageType
getset

Gets or sets the type of the page.

The type of the page.

The type of the page is available to StreamLink clients and can be used to control the display of the page.

IList<IPageElement> Caplin.DataSource.Messaging.Page.IPageMessage.UpdatedElements
get

Gets a read-only list of the updated page elements.

The updated page elements.

int Caplin.DataSource.Messaging.Page.IPageMessage.Width
getset

Gets or sets the width of the page, in text columns.

This value is valid on all IPageMessage instances created using the IMessageFactory interface. However it may be undefined (and hence have a value of -1) on instances received by an implementation of ISubscriptionListener.

The first character on a page is at column zero. Therefore the maximum modifiable column is at position (Width - 1).


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