public bool TryRemove(WorkspaceWindow window)
{
try
{
this._suppressEvent = true;
TabItem dc = GetTabItem(window.Title);
if (dc != null)
{
var args = new WorkspaceWindowClosingEventArgs(window);
this.OnWindowClosing(args);
if (args.Cancel)
{
return(false);
}
this._tabControl.Items.Remove(dc);
//处理内存泄漏：当没有页签时，清除SelectedItem属性，
//否则仍旧保留了最后一个页面的值在DependencyObject的_effectiveValues中
if (this._tabControl.Items.Count == 0)
{
this._tabControl.SelectedItem = null;
}
this.OnWindowClosed(new WorkspaceWindowChangedEventArgs(window, null));
}
return(true);
}
finally
{
this._suppressEvent = false;
}
}
private void OnWindowClosing(WorkspaceWindowClosingEventArgs e)
{
var handler = this.WindowClosing;
if (handler != null)
{
handler(this, e);
}
}
private void OnWindowClosing(WorkspaceWindowClosingEventArgs e)
{
var handler = this.WindowClosing;
if (handler != null) handler(this, e);
}
public bool TryRemove(WorkspaceWindow window)
{
try
{
this._suppressEvent = true;
TabItem dc = GetTabItem(window.Title);
if (dc != null)
{
var args = new WorkspaceWindowClosingEventArgs(window);
this.OnWindowClosing(args);
if (args.Cancel) { return false; }
this._tabControl.Items.Remove(dc);
//处理内存泄漏：当没有页签时，清除SelectedItem属性，
//否则仍旧保留了最后一个页面的值在DependencyObject的_effectiveValues中
if (this._tabControl.Items.Count == 0)
{
this._tabControl.SelectedItem = null;
}
this.OnWindowClosed(new WorkspaceWindowChangedEventArgs(window, null));
}
return true;
}
finally
{
this._suppressEvent = false;
}
}
void workSpace_WindowClosing(object sender, WorkspaceWindowClosingEventArgs e)
{
if (e.Window == this._ownerWindow)
{
this.SaveIfDirty(() => e.Cancel = true);
}
}