xenadmin/XenAdmin/Controls/TreeViews/FolderChangeDialogTreeView.cs
Konstantina Chremmou 16c88cc7b7 CA-302791: Rewrote the ChangeFolder dialog to fix usability issues.
- Corrected folder selection; reduced clicks required to select folders;
  improved text; added delete button.
- Moved FolderChangeDialogTreeView to the same folder as the other TreeViews;
- Added missing null checks to the MutliSelectTreeView and hid properties
  HScrollPos and VScrollPos from VS's designer (the former was initialised
  to zero every time the designer was updated, causing the treeview images
  to disappear).

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
2018-11-26 10:29:39 +00:00

80 lines
2.7 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
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using System;
using System.Collections.Generic;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace XenAdmin.Controls
{
internal class FolderChangeDialogTreeView : VirtualTreeView
{
public bool expandOnDoubleClick = true;
private bool blockExpansion;
protected override void OnMouseDown(MouseEventArgs e)
{
if (e.Clicks > 1)
blockExpansion = true;
var hitTesInfo = HitTest(e.X, e.Y);
if (hitTesInfo.Node == null)
SelectedNode = null;
base.OnMouseDown(e);
}
protected override void OnBeforeExpand(VirtualTreeViewCancelEventArgs e)
{
if (!expandOnDoubleClick && blockExpansion)
{
blockExpansion = false;
e.Cancel = true;
return;
}
base.OnBeforeExpand(e);
}
protected override void OnBeforeCollapse(VirtualTreeViewCancelEventArgs e)
{
if (!expandOnDoubleClick && blockExpansion)
{
blockExpansion = false;
e.Cancel = true;
return;
}
base.OnBeforeCollapse(e);
}
}
}