// Handle the selection event for the picker.
public override void Selected(UIPickerView pickerView, nint row, nint component)
{
// Get the selected symbol key value for each category.
SelectedSymbolKey1 = _symbolLayerItems1[(int)pickerView.SelectedRowInComponent(0)].Key;
SelectedSymbolKey2 = _symbolLayerItems2[(int)pickerView.SelectedRowInComponent(1)].Key;
SelectedSymbolKey3 = _symbolLayerItems3[(int)pickerView.SelectedRowInComponent(2)].Key;
// Raise an event to notify the selection has changed.
SymbolSelected?.Invoke(this, new EventArgs());
}
private void btnSum_Click(object sender, EventArgs e)
{
lblDescription.Text = "Symbol: Sum";
SelectedSymbol = btnSum.Text;
SymbolSelected?.Invoke(this, e);
}
private void btnPlusOrMinus_Click(object sender, EventArgs e)
{
lblDescription.Text = "Symbol: Plus/Minus";
SelectedSymbol = btnPlusOrMinus.Text;
SymbolSelected?.Invoke(this, e);
}
private void btnDivisionSign_Click(object sender, EventArgs e)
{
lblDescription.Text = "Symbol: Division Sign";
SelectedSymbol = btnDivisionSign.Text;
SymbolSelected?.Invoke(this, e);
}
private void btnInfinity_Click(object sender, EventArgs e)
{
lblDescription.Text = "Symbol: Infinity";
SelectedSymbol = btnInfinity.Text;
SymbolSelected?.Invoke(this, e);
}
private void btnLessThanOrEqualTo_Click(object sender, EventArgs e)
{
lblDescription.Text = "Symbol: Less Than/Equal To";
SelectedSymbol = btnLessThanOrEqualTo.Text;
SymbolSelected?.Invoke(this, e);
}
/// <summary>
/// Fires the SymbolSelected event args, and closes a drop down editor if it exists.
/// </summary>
protected virtual void OnSymbolSelected()
{
_editorService?.CloseDropDown();
SymbolSelected?.Invoke(this, EventArgs.Empty);
}
