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# Manipulate a Response

The `Execute` method of an `IConnection` sends an action to an ACI server and returns a structure containing the response.

For an example of how to obtain this structure, see Obtain a Response to a Query.

## Obtain a Response to a Query

The following example shows how to run a command and retrieve the response.

    Response response = connection.Execute(query);

If the request is successful, `response.Data` provides access to an `XMLDocument` containing the response from the server. If the request failed, an exception is thrown from `connection.Execute`.

Consider the following example, which might be the result of the `Query` action performed in Create an Action:

    <autnresponse>
      <action>QUERY</action>
      <response>SUCCESS</response>
      <responsedata>
        <autn:numhits>2</autn:numhits>
        <autn:hit>
          <autn:reference>http://www.example.com/2</autn:reference>
          <autn:id>8</autn:id>
          <autn:section>0</autn:section>
          <autn:weight>96.00</autn:weight>
          <autn:database>Default</autn:database>
        </autn:hit>
        <autn:hit>
          <autn:reference>http://www.example.com/1</autn:reference>
          <autn:id>7</autn:id>
          <autn:section>0</autn:section>
          <autn:weight>96.00</autn:weight>
          <autn:database>Default</autn:database>
        </autn:hit>
      </responsedata>
    </autnresponse>

For an example of how to obtain a list of the references returned by the `Query` action, see Obtain Response Data From an XML Document.

## Obtain Response Data From an XML Document

The following example shows how to obtain a list of references returned by the `Query` action by selecting the reference of each hit in the ACI response

    XmlNamespaceManager namespaces =
        new XmlNamespaceManager(response.Data.NameTable);
    namespaces.AddNamespace(
        "autn", "http://schemas.autonomy.com/aci/");
    XmlNodeList nodes = response.Data.SelectNodes(
        "/autnresponse/responsedata/autn:hit/autn:reference",
        namespaces);
    foreach (XmlNode node in nodes)
    {
        Console.WriteLine(node.InnerText);
    }

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