NOTE: The RTVAgent data source may not be licensed in your RTView installation.

From the Object Properties window you can access the Attach to RTVAgent Data dialog, which is used to connect objects to tabular data sent from remote agent applications. The valueTable property of an object, typically a Cache object, will be attached to a data table received from the agent. NOTE: The AgentName column in that table should be specified in the indexColumnNames property of the Cache object.
 

To bring up the Attach to RTVAgent Data dialog, right-click on the Property Name from the Object Properties window and select Attach to Data>RTVAgent. The Attach to RTVAgent Data dialog provides several drop down menus that allow you to specify information. The Agent Class drop down menu lists the agent class names of all of agents that have connected to the RTVAgent adapter. Drop down menus for Table Name, Column(s) and Filter Column populate based on the selected agent Class. If the item you require is not listed, type your selection into the field. For information on enabling a connection, see Application Options.

NOTE: The Attach to RTVAgent Data dialog will only display agents currently connected and publishing data.
 

Agent Class	The class name of the agent from which you want content. Choose either a class name or RTViewDs. You must enable a connection on the RTVAgent Options tab of the Application Options dialog. NOTE: Since multiple agents can have the same class name, data attachments will receive information from all agents with the specified Agent Class and Table Name.
Table Name	Name of the table. NOTE: The agent assigns a name to the table when it sends it to the RTVAgent data adapter.
Column(s)	Select which column(s) to display. To bring up the Select Columns dialog, click on the ellipse button  in the Column(s) field (or right-click in the Column(s) field and choose Select Columns). The dialog should contain a list of Available Columns that you can add to your table.
Filter Rows	Check box to indicate whether or not to filter the RTVAgent data.
Filter Column	Name of the column to use as a filter. Multiple column names should be entered as a semicolon (;) delimited list (i.e. col1;col2;col 3). If your column name contains a space or a semicolon, then the entire name must be enclosed in single quotes.
Filter Value	Value that the Filter Column must equal. Multiple filter values should be entered as a nested list, where values for a given column are separated by commas within a semicolon (;) delimited list (i.e. val1,val2;val3,val4;val5,val6). If your filter value contains a space or a semicolon, then the entire value must be enclosed in single quotes. When * is entered as a filter field value, data for all values in the specified filter column will be used to update the object property. When "*" is entered, only the literal comparative value will be used.
Data Server	Select to read data through your configured Data Server and not directly from the RTVAgent data source. Default - Select the default Data Server you configured in Application Options>Data Server. None - Bypass data being redirected through the specified data server(s) for this attachment and instead attach directly to the data source. Named Data Servers - Select a Named Data Server that you configured in Application Options>Data Server. Multi-Server Attachment - To configure multiple data servers, enter a semicolon (;) delimited list containing two or more Named Data Servers (e.g. ds101;ds102). Each name specified must correspond with a Named Data Server that you configured in Application Options>Data Server. It is also possible to specify __default and __none (e.g. __default;ds101;ds102). NOTE: The values __default and __none begin with two underscore characters. Alternatively, a value of * can be entered to specify all data servers, including __default and __none. When multiple data servers are specified, the data attachment will be directed to each data server in the list. For tabular data attachments, a column named DataServerName will be added as the first column of the table and contain the name of the server from which the data was received. A multi-server attachment will receive data independently from each of the servers it specifies, so in most cases it will be necessary to combine the tables received into a single table. This can be accomplished in two ways: 1) The multi-server attachment can be applied to a local cache that has the DataServerName column specified as an index column. The current table of that cache will contain the combination of the tables received from all servers. NOTE: It may also be necessary to configure cache row expiration settings to remove defunct rows. 2) The multi-server attachment can be applied as the Table argument of the RTView function named Combine Multi-Server Tables.

When an object property is attached to data, the Property Name and Value in the Object Properties window will be displayed in green. This indicates that editing this value from the Object Properties window is no longer possible. Once a property has been attached to data, it receives continuous updates. To remove the data attachment, and resume editing capability in the Object Properties window, right-click on the Property Name and select Detach from Data. You will recognize that an object property has been detached from the data source when the Property Name and Value are no longer green.

The following describes the significance of the Attach to RTVAgent Data validation colors:
 

	Blue	Unknown	Cannot validate entry.
	White	Valid state	Entry is valid.
	Red	Invalid state	Incomplete or invalid entry.

*If an agent is validated as Unknown, RTView will attempt to read it when you click OK or Apply.

Substitutions
The Substitutions feature allows you to build open-ended displays in which data attachments depend on values defined at the time the display is run. A generic name such as $table is used instead of a specific table name. Later when the display is running, this generic value is defined by the actual name of a specific table, such as SalesTable. In this way, a single display can be reused to show data from a number of different sources. For more information on creating displays using substitution values, see Substitutions.

RTViewDs
There is a predefined agent Class named RTViewDs that defines a single table named Agents. The RTViewDs.agents table contains a row for each agent that is currently connected. The columns in the table are as follows:
 

RTViewDs
Agents (RTViewDs.agents)	Column Available	Description
	AgentName	Name of agent.
	AgentClass	Class name of agent.
	LastReceiveTime	Time that a data table was most recently received from the agent.
	TotalRowsReceived	Cumulative count of table rows received from the agent.
	ClientID	Unique number assigned to the agent connection.

Select Table Columns
From the Attach to RTVAgent Data dialog you can specify which table columns to display and in what order they will appear. In order to populate the listing of available columns, you must first select a valid agent Class source and Table Name.

To bring up the Select Columns dialog, click on the ellipse button  in the Column(s) field (or right-click in the Column(s) field and choose Select Columns). The dialog should contain a list of Available Columns that you can add to your table.

To add a column, select an item from the Available Columns list and click on the Add button. If the item you require is not listed, type your selection into the Enter Column Name field. Click the Remove button to delete an item previously added to the Selected Columns list. You can control the order of columns in a table by arranging the items in the Selected Columns list with the Move Up and Move Down buttons.

Validation colors indicate whether selected columns are valid. However, if even one column selected is invalid, the Column(s) field in the Attach to RTVAgent Data dialog will register as an invalid entry. NOTE: Invalid columns will not update.

If no data is available for a table row within a selected column, the table cell will display one the following values: N/A, false, 0, or 0.0.
 

The following describes the Attach to RTVAgent Data dialog commands:
 

Command	Description
OK	Applies values and closes the dialog.
Apply	Applies values without closing the dialog.
Reset	Resets all fields to last values applied.
Clear	Clears all fields. Detaches object from data source (once Apply or OK is selected).
Cancel	Closes the dialog with last values applied.