private void Edit_Function(object sender, RoutedEventArgs e)
{
DlgAddFunction dlg = new DlgAddFunction();
EvaluatedFunction evaluatedFunction = FunctionGrid.SelectedItem as EvaluatedFunction;
int indexOfFunction = evaluatedFunctionsList.IndexOf(evaluatedFunction);
dlg.functionExpression.Text = evaluatedFunction.Function;
dlg.xFirst.Value = evaluatedFunction.xDomain.X;
dlg.xLast.Value = evaluatedFunction.xDomain.Y;
dlg.yFirst.Value = evaluatedFunction.yDomain.X;
dlg.yLast.Value = evaluatedFunction.yDomain.Y;
if (dlg.ShowDialog() == true)
{
evaluatedFunction.setxDomain((double)dlg.xFirst.Value, (double)dlg.xLast.Value);
evaluatedFunction.setyDomain((double)dlg.yFirst.Value, (double)dlg.yLast.Value);
evaluatedFunctionsList[indexOfFunction] = evaluatedFunction;
FunctionGrid.Items.Refresh();
}
}
