Rockwell-automation FactoryTalk Historian SE ActiveView 3.2 User Guide Manual do Utilizador descarregar pdf (Página 77)

3 ● For Developers: Administering FactoryTalk Historian ActiveView

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ActiveView Control Events

BeforeConnection Event

This event occurs before a connection to the Historian Server is attempted.

This allows the programmer to alter the user name and password so that

logging into the Server is not apparent to the user. When the call returns,

connection is attempted.

Format

BeforeConnection (myParam as BCParam)

Example

The following is an example of using JavaScript to use the security events:

<html>

<head>

Sub window_onLoad()

Pbd1.DisplayURL = "<MyDisplayURL>"

End Sub

</script>

function Pbd1_BeforeConnection(pParam) {

pParam.Username = "MyUserName";

pParam.Password = "MyPassword";

}

</script>

for = "pbd1"

event = "BeforeConnection(pParam)">

Pbd1_BeforeConnection(pParam)

</script>

</head>

<body>

<p>

<object id = "Pbd1"

width = "700"

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Rockwell-automation FactoryTalk Historian SE ActiveView 3.2 User Guide Manual do Utilizador Página 77