/// <summary>
/// Adds an item to the list view.
/// </summary>
private void AddValue(object subscriptionHandle, TsCDaItemValueResult item, ref ListViewItem replaceableItem)
{
string quality = "";
// format quality.
if (item.QualitySpecified)
{
quality += item.Quality.QualityBits.ToString();
if (item.Quality.LimitBits != TsDaLimitBits.None)
{
quality += ", ";
quality += item.Quality.LimitBits.ToString();
}
if (item.Quality.VendorBits != 0)
{
quality += String.Format(", {0:X}", item.Quality.VendorBits);
}
}
// format columns.
string[] columns = new string[]
{
item.ItemName,
item.ItemPath,
OpcClientSdk.OpcConvert.ToString(item.Value),
(item.Value != null)?OpcClientSdk.OpcConvert.ToString(item.Value.GetType()):"",
quality,
(item.TimestampSpecified)?OpcClientSdk.OpcConvert.ToString(item.Timestamp):"",
GetErrorText(subscriptionHandle, item.Result)
};
// update an existing item.
if (replaceableItem != null)
{
for (int ii = 0; ii < replaceableItem.SubItems.Count; ii++)
{
replaceableItem.SubItems[ii].Text = columns[ii];
}
replaceableItem.Tag = item;
replaceableItem.ForeColor = Color.Empty;
// update detail view dialog.
EditComplexValueDlg dialog = (EditComplexValueDlg)m_viewers[replaceableItem];
if (dialog != null)
{
dialog.UpdateValue(item.Value);
}
return;
}
// create a new list view item.
replaceableItem = new ListViewItem(columns, Resources.IMAGE_YELLOW_SCROLL);
replaceableItem.Tag = item;
// insert after any existing item value with the same client handle.
for (int ii = ItemListLV.Items.Count - 1; ii >= 0; ii--)
{
TsCDaItemValueResult previous = (TsCDaItemValueResult)ItemListLV.Items[ii].Tag;
if (previous.ClientHandle != null && previous.ClientHandle.Equals(item.ClientHandle))
{
ItemListLV.Items.Insert(ii + 1, replaceableItem);
return;
}
}
ItemListLV.Items.Add(replaceableItem);
}
