public void view_CustomNodeFilter(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeFilterEventArgs e)
{
if (ForceUnfiltered.Contains(e.Node.Content))
{
e.Visible = true;
}
e.Handled = true;
}
private void CustomNodeFilter(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeFilterEventArgs e)
{
if (e.Node.Level == 0)
{
e.Visible = false;
e.Node.IsExpanded = true;
e.Handled = true;
}
}
private void treeListView1_CustomNodeFilter(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeFilterEventArgs e)
{
if (checkBox1.IsChecked == false)
{
return;
}
if (e.Node.RowHandle % 2 != 0)
{
e.Visible = false;
}
e.Handled = true;
}
private void TreeListView_CustomNodeFilter(object sender, DevExpress.Xpf.Grid.TreeList.TreeListNodeFilterEventArgs e)
{
#region 方法一
var view = (TreeListView)sender;
if (string.IsNullOrEmpty(view.SearchString))
{
return;
}
if (e.Node.HasChildren)
{
SearchControl searchControl = view.SearchControl;
string criteriaString = CriteriaOperator.LegacyToString(searchControl.FilterCriteria).Replace("DxFts_", "");
var ee = new ExpressionEvaluator(TypeDescriptor.GetProperties(typeof(Employee)), criteriaString, false);
e.Visible = ee.Fit(e.Node.Content) || new TreeListNodeIterator(e.Node).Select(x => x.Content).Any(ee.Fit);
e.Handled = true;
}
#endregion
#region 方法二（有缺陷）
//TreeListNode node = e.Node;
//TreeListNode parentNode = e.Node.ParentNode;
//if (parentNode == null)
//{
// e.Visible = true;
// e.Handled = true;
// return;
//}
//if (parentNode != null && node.IsExpanded)
//{
// e.Visible = true;
// e.Handled = true;
//}
#endregion
}
