// ** handle styles page
private void _lbStyles_SelectedIndexChanged(object sender, System.EventArgs e)
{
ReportStyle style = _lbStyles.SelectedItem as ReportStyle;
_picStyle.Image = (style != null) ? style.GetPreview(false) : null;
_owner._defaultStyleName = style.Name;
}
// update preview when properties change
private void _propGrid_PropertyValueChanged(object s, System.Windows.Forms.PropertyValueChangedEventArgs e)
{
// update preview
ReportStyle style = _list.SelectedItem as ReportStyle;
_preview.Image = style.GetPreview(true);
// update list
if (e.ChangedItem.PropertyDescriptor.Name == "Name")
{
int index = _list.SelectedIndex;
_list.Items[index] = style;
}
// remember we're dirty
_dirty = true;
}
// update style preview
private void _list_SelectedIndexChanged(object sender, System.EventArgs e)
{
// get current style
ReportStyle style = _list.SelectedItem as ReportStyle;
if (style == null)
{
return;
}
// update preview
_preview.Image = style.GetPreview(false);
// we add a readonly attribute to predefined styles so that the grid can be used
// to explore it but cannot change it:
_propGrid.Enabled = true;
if (!style.IsCustom)
{
var roAttribute = new ReadOnlyAttribute(true);
if (!TypeDescriptor.GetAttributes(style).Matches(roAttribute))
{
TypeDescriptor.AddAttributes(style, roAttribute);
}
}
// update property grid
_propGrid.SelectedObject = style;
_propGrid.Refresh();
// only custom styles can be edited:
_lblPropGrid.Text = style.IsCustom ? Strings.ReportStyleForm.CustomStyleCaption : Strings.ReportStyleForm.BuiltInStyleCaption;
// update buttons
_btnRemove.Enabled = style.IsCustom;
}