public override object GroupNameFromItem(object item, int level, CultureInfo culture)
{
editer.DataSource = item;
editer.Expression = Expression;
if (editer.IsValid)
{
return(editer.Evaluate());
}
return("");
}
private bool Contains(object obj)
{
_editor.Expression = editor.Expression;
_editor.DataSource = obj as Product;
var value = _editor.Evaluate();
var ret = true;
if (value != null)
{
Boolean.TryParse(value.ToString(), out ret);
}
return(ret);
}
private void ExpressionEditor_ExpressionChanged(object sender, EventArgs e)
{
C1ExpressionEditor editer = sender as C1ExpressionEditor;
if (!editer.IsValid)
{
Result.Text = "";
Errors.Text = "";
editer.GetErrors().ForEach(x => { Errors.Text += x.Message + "\n"; });
}
else
{
Result.Text = editer.Evaluate().ToString();
Errors.Text = "";
}
}
private bool Contains(object obj)
{
if (!Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.Phone.UI.Input.HardwareButtons"))
{
_editor.Expression = editor.Expression;
}
else
{
_editor.Expression = c1editor.Expression;
}
_editor.DataSource = obj as Product;
var value = _editor.Evaluate();
var ret = true;
if (value != null)
{
Boolean.TryParse(value.ToString(), out ret);
}
return(ret);
}