private void btnParse_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
#region #parse
FormulaEngine engine = spreadsheetControl1.Document.FormulaEngine;
if (spreadsheetControl1.ActiveCell != null)
{
// Get the formula for parsing.
string formula = spreadsheetControl1.ActiveCell.Formula;
if (formula != string.Empty)
{
// Parse the formula
ParsedExpression p_expr = engine.Parse(formula);
// Traverse the expression tree and modify it.
MyVisitor visitor = new MyVisitor();
p_expr.Expression.Visit(visitor);
// Reconsitute the formula.
string formula1 = p_expr.ToString();
// Place the formula back to the cell.
spreadsheetControl1.ActiveCell.Formula = formula1;
}
#endregion #parse
}
}