/// <see cref="BaseListCtrl.UpdateItem" />
protected override void UpdateItem(ListViewItem listItem, object item)
{
MonitoredItem monitoredItem = item as MonitoredItem;
if (monitoredItem == null)
{
base.UpdateItem(listItem, item);
return;
}
listItem.SubItems[0].Text = String.Format("{0}", monitoredItem.Status.Id);
listItem.SubItems[1].Text = String.Format("{0}", monitoredItem.DisplayName);
listItem.SubItems[2].Text = String.Format("{0}", monitoredItem.NodeClass);
listItem.SubItems[3].Text = String.Format("{0}", monitoredItem.Status.SamplingInterval);
listItem.SubItems[4].Text = String.Format("{0}", monitoredItem.Status.QueueSize);
listItem.SubItems[5].Text = String.Empty;
listItem.SubItems[6].Text = String.Format("{0}", monitoredItem.Status.Error);
listItem.SubItems[7].Text = String.Empty;
IEncodeable value = monitoredItem.LastValue;
if (value != null)
{
MonitoredItemNotification datachange = value as MonitoredItemNotification;
if (datachange != null)
{
listItem.SubItems[5].Text = String.Format("{0}", datachange.Value);
if (datachange.Value.SourceTimestamp != DateTime.MinValue)
{
listItem.SubItems[7].Text = String.Format("{0:HH:mm:ss.fff}",
datachange.Value.SourceTimestamp.ToLocalTime());
}
}
EventFieldList eventFields = value as EventFieldList;
if (eventFields != null)
{
listItem.SubItems[5].Text = String.Format("{0}", monitoredItem.GetEventType(eventFields));
listItem.SubItems[7].Text = String.Format("{0:HH:mm:ss.fff}",
monitoredItem.GetEventTime(eventFields).ToLocalTime());
}
}
listItem.Tag = item;
}
/// <summary>
/// Formats a value for display in the control.
/// </summary>
private string GetValueText(object value)
{
// check for null.
if (value == null)
{
return("(null)");
}
// format bytes.
byte[] bytes = value as byte[];
if (bytes != null)
{
StringBuilder buffer = new StringBuilder();
for (int ii = 0; ii < bytes.Length; ii++)
{
if (ii != 0 && ii % 16 == 0)
{
buffer.Append(" ");
}
buffer.AppendFormat("{0:X2} ", bytes[ii]);
}
return(buffer.ToString());
}
// format xml element.
XmlElement xml = value as XmlElement;
if (xml != null)
{
// return the entire element if not expandable.
if (!IsExpandableType(xml))
{
return(xml.OuterXml);
}
// show only the start tag.
string text = xml.OuterXml;
int index = text.IndexOf('>');
if (index != -1)
{
text = text.Substring(0, index);
}
return(text);
}
// format array.
Array array = value as Array;
if (array != null)
{
return(Utils.Format("{1}[{0}]", array.Length, value.GetType().GetElementType().Name));
}
// format list.
IList list = value as IList;
if (list != null)
{
string type = value.GetType().Name;
if (type.EndsWith("Collection"))
{
type = type.Substring(0, type.Length - "Collection".Length);
}
else
{
type = "Object";
}
return(Utils.Format("{1}[{0}]", list.Count, type));
}
// format encodeable object.
IEncodeable encodeable = value as IEncodeable;
if (encodeable != null)
{
return(encodeable.GetType().Name);
}
// format extension object.
ExtensionObject extension = value as ExtensionObject;
if (extension != null)
{
return(GetValueText(extension.Body));
}
// check for event value.
EventFieldList eventFields = value as EventFieldList;
if (eventFields != null)
{
if (m_monitoredItem != null)
{
return(String.Format("{0}", m_monitoredItem.GetEventType(eventFields)));
}
return(eventFields.GetType().Name);
}
// check for data value.
DataValue dataValue = value as DataValue;
if (dataValue != null)
{
if (StatusCode.IsBad(dataValue.StatusCode))
{
return(String.Format("{0}", dataValue.StatusCode));
}
return(String.Format("{0}", dataValue.Value));
}
// use default formatting.
return(Utils.Format("{0}", value));
}
/// <summary>
/// Formats a value for display in the control.
/// </summary>
private string GetValueText(object value)
{
// check for null.
if (value == null)
{
return("(null)");
}
// format bytes.
byte[] bytes = value as byte[];
if (bytes != null)
{
StringBuilder buffer = new StringBuilder();
for (int ii = 0; ii < bytes.Length; ii++)
{
if (ii != 0 && ii % 16 == 0)
{
buffer.Append(" ");
}
buffer.AppendFormat("{0:X2} ", bytes[ii]);
}
return(buffer.ToString());
}
// format xml element.
XmlElement xml = value as XmlElement;
if (xml != null)
{
// return the entire element if not expandable.
if (!IsExpandableType(xml))
{
return(xml.OuterXml);
}
// show only the start tag.
string text = xml.OuterXml;
int index = text.IndexOf('>');
if (index != -1)
{
text = text.Substring(0, index);
}
return(text);
}
// format array.
Array array = value as Array;
if (array != null)
{
if (array.Rank > 1)
{
int[] lenghts = new int[array.Rank];
for (int i = 0; i < array.Rank; ++i)
{
lenghts[i] = array.GetLength(i);
}
return(Utils.Format("{1}[{0}]", string.Join(",", lenghts), value.GetType().GetElementType().Name));
}
else
{
return(Utils.Format("{1}[{0}]", array.Length, value.GetType().GetElementType().Name));
}
}
// format list.
IList list = value as IList;
if (list != null)
{
string type = value.GetType().Name;
if (type.EndsWith("Collection"))
{
type = type.Substring(0, type.Length - "Collection".Length);
}
else
{
type = "Object";
}
return(Utils.Format("{1}[{0}]", list.Count, type));
}
// format encodeable object.
IEncodeable encodeable = value as IEncodeable;
if (encodeable != null)
{
return(encodeable.GetType().Name);
}
// format extension object.
ExtensionObject extension = value as ExtensionObject;
if (extension != null)
{
return(GetValueText(extension.Body));
}
// check for event value.
EventFieldList eventFields = value as EventFieldList;
if (eventFields != null)
{
if (m_monitoredItem != null)
{
return(String.Format("{0}", m_monitoredItem.GetEventType(eventFields)));
}
return(eventFields.GetType().Name);
}
// check for data value.
DataValue dataValue = value as DataValue;
if (dataValue != null)
{
StringBuilder formattedValue = new StringBuilder();
if (!StatusCode.IsGood(dataValue.StatusCode))
{
formattedValue.Append("[");
formattedValue.AppendFormat("Q:{0}", dataValue.StatusCode);
}
DateTime now = DateTime.UtcNow;
if ((dataValue != null) &&
((dataValue.ServerTimestamp > now) || (dataValue.SourceTimestamp > now)))
{
if (formattedValue.ToString().Length > 0)
{
formattedValue.Append(", ");
}
else
{
formattedValue.Append("[");
}
formattedValue.Append("T:future");
}
if (formattedValue.ToString().Length > 0)
{
formattedValue.Append("] ");
}
formattedValue.AppendFormat("{0}", dataValue.Value);
return(formattedValue.ToString());
}
// use default formatting.
return(Utils.Format("{0}", value));
}