PowerSNMP for .NET
Variables Field (Agent)
Example 




A Variable list used by SnmpBase.CreateResponse.
Syntax
Public Variables As VariableList
Dim instance As Agent
Dim value As VariableList
 
value = instance.Variables
 
instance.Variables = value
public VariableList Variables
public: VariableList* Variables
public:
VariableList^ Variables

Field Value

VariableList
Example
Demonstrates adding a variable to the Agent's variables collection.
//Add an object value instance to an agent's variables collection in one of four ways:

//1. By a common object already defined in the NodeName enumeration.
private void button1_Click(object sender, EventArgs e)
{
    agent1.Variables.Add(agent1.Mib.CreateVariable(NodeName.sysContact, "Systems Admin"));
}
//2. By string name. Can refer to default objects, or objects from MIBs loaded at 
//   runtime with Agent.Mib.Parse() and Agent.Mib.GenerateNodes().
private void button2_Click(object sender, EventArgs e)
{
    agent1.Variables.Add(new Variable(agent1.Mib["sysContact"], "Systems Admin"));
}
//3. By enumeration from generated and imported Mib code files.
//   See the included Mib Treeview sample for a demonstration of generating a Mib code file from MIBs.
private void button3_Click(object sender, EventArgs e)
{
    //This would normally be called when loading your application; 
    //demonstrated here because it's required for the subsequent line.
    Mib.Import(agent1.Mib);

    agent1.Variables.Add(agent1.Mib.CreateVariable(Mib.NodeName.testString, "Test string value"));
}
//4. By IID.
private void button4_Click(object sender, EventArgs e)
{
    agent1.Variables.Add(new Variable("1.3.6.1.2.1.1.4.0", new Dart.Snmp.SimpleType.OctetString("Systems Admin")));
}
'Add an object value instance to an agent's variables collection in one of four ways:

'1. By a common object already defined in the NodeName enumeration.
Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs)
    agent1.Variables.Add(agent1.Mib.CreateVariable(NodeName.sysContact, "Systems Admin"))
End Sub
'2. By string name. Can refer to default objects, or objects from MIBs loaded at 
'   runtime with Agent.Mib.Parse() and Agent.Mib.GenerateNodes().
Private Sub button2_Click(ByVal sender As Object, ByVal e As EventArgs)
    agent1.Variables.Add(New Variable(agent1.Mib("sysContact"), "Systems Admin"))
End Sub
'3. By enumeration from generated and imported Mib code files.
'   See the included Mib Treeview sample for a demonstration of generating a Mib code file from MIBs.
Private Sub button3_Click(ByVal sender As Object, ByVal e As EventArgs)
    'This would normally be called when loading your application; 
    'demonstrated here because it's required for the subsequent line.
    Mib.Import(agent1.Mib)

    agent1.Variables.Add(agent1.Mib.CreateVariable(Mib.NodeName.testString, "Test string value"))
End Sub
'4. By IID.
Private Sub button4_Click(ByVal sender As Object, ByVal e As EventArgs)
    agent1.Variables.Add(New Variable("1.3.6.1.2.1.1.4.0", New Dart.Snmp.SimpleType.OctetString("Systems Admin")))
End Sub
Remarks

When a SetMessage arrives, values are updated when SnmpBase.CreateResponse is used. When a GetMessage, GetNextMessage or GetBulkMessage arrives, SnmpBase.CreateResponse uses this list to initialize the ResponseMessage. If values contain OIDs that are in Mib, then MibNode.Access is checked for read-write access to this list, and the ResponseMessage is constructed accordingly.

See Also

Reference

Agent Class
Agent Members


Documentation Version 4.9
© 2016 Dart Communications. All Rights Reserved.
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