/// <summary>
/// Updates the data filter whenever the selected index changed.
/// </summary>
private void TypeConversionCB_SelectedIndexChanged(object sender, System.EventArgs e)
{
typeConversionCb_.Enabled = typeConversionSpecifiedCb_.Checked;
TsCCpxComplexItem item = null;
if (typeConversionSpecifiedCb_.Checked)
{
item = (TsCCpxComplexItem)typeConversionCb_.SelectedItem;
}
else
{
if (mItem_ != null)
{
item = mItem_.GetRootItem();
}
}
if (item != null)
{
dataFilterSpecifiedCb_.Enabled = (item.DataFilterItem != null);
dataFilterTb_.Enabled = dataFilterSpecifiedCb_.Enabled && dataFilterSpecifiedCb_.Checked;
}
}
/// <summary>
/// Initializes the control with information specified to a complex item.
/// </summary>
private void SetComplexItem(OpcItem itemId)
{
mItem_ = TsCCpxComplexTypeCache.GetComplexItem(itemId);
// do nothing for items that are not complex.
if (mItem_ == null)
{
reqTypePn_.Visible = true;
complexItemPn_.Visible = false;
return;
}
// display complex item controls.
reqTypePn_.Visible = false;
complexItemPn_.Visible = true;
// initialize controls.
typeConversionCb_.Items.Clear();
typeConversionCb_.Text = null;
typeConversionSpecifiedCb_.Checked = false;
dataFilterTb_.Text = null;
dataFilterSpecifiedCb_.Checked = false;
// fetch the available type conversions.
Technosoftware.DaAeHdaClient.Cpx.TsCCpxComplexItem[] conversions = mItem_.GetRootItem().GetTypeConversions(TsCCpxComplexTypeCache.Server);
// no conversions available.
if (conversions == null || conversions.Length == 0)
{
typeConversionSpecifiedCb_.Enabled = false;
}
// populate conversions drop down menu.
else
{
Technosoftware.DaAeHdaClient.Cpx.TsCCpxComplexItem item = mItem_;
if (item.UnfilteredItemID != null)
{
item = TsCCpxComplexTypeCache.GetComplexItem(item.UnfilteredItemID);
}
foreach (TsCCpxComplexItem conversion in conversions)
{
typeConversionCb_.Items.Add(conversion);
if (conversion.Key == item.Key)
{
typeConversionCb_.SelectedItem = conversion;
typeConversionSpecifiedCb_.Checked = true;
}
}
if (typeConversionCb_.SelectedItem == null)
{
typeConversionCb_.SelectedIndex = 0;
}
}
// display the active data filter.
if (mItem_.UnfilteredItemID != null)
{
dataFilterTb_.Text = mItem_.DataFilterValue;
dataFilterSpecifiedCb_.Checked = true;
}
}
