private void SetNextTab()
{
if (this.Tabs.Children.Count == 1)
{
return;
}
int checkIndex = this.previousIndex - 1;
TabHeader item = null;
while (checkIndex >= 0)
{
item = this.TabItem(checkIndex);
if (item != null)
{
this.SetCurrent(checkIndex);
return;
}
checkIndex--;
}
checkIndex = this.previousIndex + 1;
while (checkIndex <= this.tabIndex)
{
item = this.TabItem(checkIndex);
if (item != null)
{
this.SetCurrent(checkIndex);
return;
}
checkIndex++;
}
}
public void SetHeaderName(int index, string name)
{
while (index > (this.Tabs.Children.Count - 1))
{
index--;
if (index < 0)
{
return;
}
}
TabHeader tabItem = this.Tabs.Children[index] as TabHeader;
if (tabItem == null)
{
return;
}
tabItem.HeaderText = name;
}
private void PerformItemSet(TabHeader item)
{
if (item == null)
{
return;
}
this.UnSetPrevious();
if (!item.IsTabEnabled)
{
return;
}
this.SetCurrent(item.TabIndex);
if (this.OnTabSelected != null)
{
this.OnTabSelected(item, item.TabIndex);
}
}
private void Items_OnPropertyChangedEvent(object sender, NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
foreach (UserControlBase item in e.NewItems)
{
item.TabIndex = -1;
if (this.MaxTabls > 0 && this.Items.Count > this.MaxTabls)
{
MessageBox.Show($"Maximum Tab Limit of {this.MaxTabls} reached");
this.Items.Remove(item);
return;
}
TabHeader header = new TabHeader();
header.RotationAngle = this.DockLocation == VerticalTabDocLocationEnum.Left ? 90 : 270;
header.IsVertical = true;
header.OnClick += this.Item_Click;
header.OnCloseClick += this.CloseButton_Click;
header.CanClose = item.ShowCloseButton;
header.HeaderText = item.Title;
header.TabIndex = this.tabIndex;
item.SizeChanged += this.Control_SizeChanged;
item.VerticalAlignment = VerticalAlignment.Stretch;
item.HorizontalAlignment = HorizontalAlignment.Stretch;
item.Tag = header;
header.IsSelected = true;
this.Tabs.Children.Add(header);
item.TabIndex = this.tabIndex;
this.UnSetPrevious();
//this.Content = item;
this.previousIndex = this.tabIndex;
this.tabIndex++;
}
break;
case NotifyCollectionChangedAction.Remove:
foreach (UserControlBase removeItem in e.OldItems)
{
if (this.Content == removeItem)
{
this.Content = null;
if (removeItem.TabIndex == this.previousIndex)
{
this.SetNextTab();
}
}
TabHeader tab = this.TabItem(removeItem.TabIndex);
if (tab != null)
{
this.Tabs.Children.Remove(tab);
}
removeItem.SizeChanged -= this.Control_SizeChanged;
}
break;
case NotifyCollectionChangedAction.Reset:
this.Items.Clear();
this.Content = null;
this.Tabs.Children.Clear();
this.SelectedIndex = 0;
this.tabIndex = 0;
break;
}
}
public void SetActive(int index)
{
TabHeader tabItem = (TabHeader)this.Tabs.Children.GetByIndex(index);
this.PerformItemSet(tabItem);
}
public object SelectedItem()
{
TabHeader header = this.TabItem(this.SelectedIndex);
return(this.Items[header.TabIndex]);
}
