/// <summary>
/// Handles OnPropertyBound event.
/// </summary>
protected override void OnPropertyBound()
{
base.OnPropertyBound();
BasePickListControl ctl = control as BasePickListControl;
ctl.lbx_Items.SelectionMode = property.IsMultiValued ? ListSelectionMode.Multiple : ListSelectionMode.Single;
ctl.lbx_Selection.SelectionMode = ListSelectionMode.Multiple;
ctl.btn_AddAll.Visible = ctl.btn_RemoveAll.Visible = property.IsMultiValued;
}
/// <summary>
/// Constructor.
/// </summary>
protected PropertyBinding(BasePickListControl ctl) : base(ctl)
{
ctl.btn_AddAll.Click += delegate(object sender, EventArgs e)
{
if (property == null || property.ItemsProvider == null)
{
return;
}
List <object> values = new List <object>();
foreach (object val in property.ItemsProvider(null))
{
values.Add(val);
}
property.SetValue(values);
};
ctl.btn_Add.Click += delegate(object sender, EventArgs e)
{
ListBox lbxSelection = (control as BasePickListControl).lbx_Items;
string selection = lbxSelection.Page.Request.Form[lbxSelection.UniqueID];
if (property == null || string.IsNullOrEmpty(selection))
{
return;
}
if (!property.IsMultiValued && property.IsNull())
{
property.SetValue(selection.Split(',')[0]);
}
else if (property.IsMultiValued)
{
IList sel = property.ResolveValue(selection, ValueFormat.Internal) as IList;
IList val = property.InternalValue as IList;
if (val != null && sel != null)
{
foreach (object v in val)
{
if (!sel.Contains(v))
{
sel.Add(v);
}
}
}
property.SetValue(sel);
}
};
ctl.btn_Remove.Click += delegate(object sender, EventArgs e)
{
ListBox lbxSelection = (control as BasePickListControl).lbx_Selection;
string selection = lbxSelection.Page.Request.Form[lbxSelection.UniqueID];
if (property == null || string.IsNullOrEmpty(selection))
{
return;
}
if (!property.IsMultiValued && !property.IsNull())
{
property.SetValue(null);
}
else if (property.IsMultiValued)
{
IList sel = property.ResolveValue(selection, ValueFormat.Internal) as IList;
IList val = property.InternalValue as IList;
if (val != null && sel != null)
{
foreach (object v in sel)
{
val.Remove(v);
}
}
property.SetValue(val);
}
};
ctl.btn_RemoveAll.Click += delegate(object sender, EventArgs e)
{
if (property != null)
{
property.SetValue(null);
}
};
}
/// <summary>
/// Constructor.
/// </summary>
protected PropertyBinding(BasePickListControl ctl)
: base(ctl)
{
ctl.btn_AddAll.Click += delegate (object sender, EventArgs e)
{
if (property == null || property.ItemsProvider == null) return;
List<string> values = new List<string>();
foreach (object i in property.ItemsProvider(null))
{
string value = property.ValueToString(i, ValueFormat.EditString);
values.Add(value);
}
property.SetValue(values.Count == 0 ? property.NullString : string.Join(",", values.ToArray()));
};
ctl.btn_Add.Click += delegate (object sender, EventArgs e)
{
ListBox lbxSelection = (control as BasePickListControl).lbx_Selection;
if (property == null ||
property.ItemsProvider == null ||
lbxSelection.Items.Count > 0 && !property.IsMultiValued)
return;
List<string> values = new List<string>();
ListBox lbxItems = (control as BasePickListControl).lbx_Items;
foreach (object i in property.ItemsProvider(null))
{
string value = property.ValueToString(i, ValueFormat.EditString);
ListItem li = lbxSelection.Items.FindByValue(value);
if (li == null)
{
li = lbxItems.Items.FindByValue(value);
if (li != null && !li.Selected)
li = null;
}
if (li != null)
{
values.Add(value);
if (!property.IsMultiValued)
break;
}
}
property.SetValue(values.Count == 0 ? property.NullString : string.Join(",", values.ToArray()));
};
ctl.btn_Remove.Click += delegate (object sender, EventArgs e)
{
if (property == null) return;
List<string> values = new List<string>();
ListBox lbxSelection = (control as BasePickListControl).lbx_Selection;
foreach (ListItem i in lbxSelection.Items)
{
if (i.Selected) continue;
values.Add(i.Value);
}
property.SetValue(values.Count == 0 ? property.NullString : string.Join(",", values.ToArray()));
};
ctl.btn_RemoveAll.Click += delegate (object sender, EventArgs e)
{
if (property != null)
property.SetValue(property.NullString);
};
}