示例#1
0
        /// <summary>
        /// 更新关联的radiobutton
        /// </summary>
        private void UpdateRadioButtonGroup()
        {
            string groupName = GroupName;

            if (!string.IsNullOrEmpty(groupName))
            {
                Visual rootScope = GetVisualRoot(this);
                if (_groupNameToElements == null)
                {
                    _groupNameToElements = new Hashtable(1);
                }
                lock (_groupNameToElements) {
                    ArrayList elements = (ArrayList)_groupNameToElements[groupName];
                    for (int i = 0; i < elements.Count;)
                    {
                        WeakReference    weakReference = (WeakReference)elements[i];
                        FIconRadioButton rb            = weakReference.Target as FIconRadioButton;
                        if (rb == null)
                        {
                            elements.RemoveAt(i);
                        }
                        else
                        {
                            if (rb != this && (rb.IsChecked == true) && rootScope == GetVisualRoot(rb))
                            {
                                rb.UncheckRadioButton();
                            }
                            i++;
                        }
                    }
                }
            }
            else
            {
                DependencyObject parent = this.Parent;
                if (parent != null)
                {
                    IEnumerable children = LogicalTreeHelper.GetChildren(parent);
                    IEnumerator itor     = children.GetEnumerator();
                    while (itor.MoveNext())
                    {
                        FIconRadioButton rb = itor.Current as FIconRadioButton;
                        if (rb != null && rb != this && string.IsNullOrEmpty(rb.GroupName) && (rb.IsChecked == true))
                        {
                            rb.UncheckRadioButton();
                        }
                    }
                }
            }
        }
示例#2
0
        /// <summary>
        /// GroupName的变更回调
        /// </summary>
        private static void OnGroupNameChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            FIconRadioButton radioButton = (FIconRadioButton)d;
            string           groupName   = e.NewValue as string;
            string           currentlyRegisteredGroupName = (string)radioButton.GetValue(_currentlyRegisteredGroupName);

            if (groupName != currentlyRegisteredGroupName)
            {
                if (!string.IsNullOrEmpty(currentlyRegisteredGroupName))
                {
                    Unregister(currentlyRegisteredGroupName, radioButton);
                }
                if (!string.IsNullOrEmpty(groupName))
                {
                    Register(groupName, radioButton);
                }
            }
        }
示例#3
0
        /// <summary>
        /// 注销一对RadioButton与GroupName的关联
        /// </summary>
        private static void Unregister(string groupName, FIconRadioButton radioButton)
        {
            if (_groupNameToElements == null)
            {
                return;
            }
            lock (_groupNameToElements) {
                ArrayList elements = (ArrayList)_groupNameToElements[groupName];

                if (elements != null)
                {
                    PurgeDead(elements, radioButton);
                    if (elements.Count == 0)
                    {
                        _groupNameToElements.Remove(groupName);
                    }
                }
            }
            radioButton.SetValue(_currentlyRegisteredGroupName, null);
        }
示例#4
0
        /// <summary>
        /// 注册一对RadioButton与GroupName的关联
        /// </summary>
        private static void Register(string groupName, FIconRadioButton radioButton)
        {
            if (_groupNameToElements == null)
            {
                _groupNameToElements = new Hashtable(1);
            }

            lock (_groupNameToElements) {
                ArrayList elements = (ArrayList)_groupNameToElements[groupName];

                if (elements == null)
                {
                    elements = new ArrayList(1);
                    _groupNameToElements[groupName] = elements;
                }
                else
                {
                    PurgeDead(elements, null);
                }

                elements.Add(new WeakReference(radioButton));
            }
            radioButton.SetValue(_currentlyRegisteredGroupName, groupName);
        }