public override void OnApplyTemplate()
{
base.OnApplyTemplate();
_datePickerTextbox = new DatePickerTextBox();
_masktextbox = new MaskedTextBox();
_datePickerTextbox = this.Template.FindName("PART_TextBox", this) as DatePickerTextBox;
_datePickerTextbox.Visibility = System.Windows.Visibility.Hidden;
Grid _grid = new Grid();
_grid = (Grid)_datePickerTextbox.Parent;
_grid.Children.Insert(1, _masktextbox);
#region MaskTextBox Properties Configuration
_masktextbox.Mask = "00/00/0000";
_masktextbox.AutoSelectBehavior = AutoSelectBehavior.OnFocus;
_masktextbox.AutoMoveFocus = true;
_masktextbox.InsertKeyMode = InsertKeyMode.Overwrite;
#endregion
#region CodeBehind TwoWays DataBinding Configuration
Binding datebinding = new Binding("date");
datebinding.Source = this;
datebinding.Mode = BindingMode.TwoWay;
datebinding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
#endregion
#region Set DataBinding to DatePicker And MaskTextBox
_datePickerTextbox.SetBinding(DatePickerTextBox.TextProperty, datebinding);
_masktextbox.SetBinding(MaskedTextBox.TextProperty, datebinding);
#endregion
#region Subscribe Events for MaskTextBox
if (_masktextbox != null)
{
_masktextbox.TextChanged += _datePickerTextbox_TextChanged;
_masktextbox.PreviewKeyDown += _masktextbox_PreviewKeyDown;
}
#endregion
}
private void DatePickerTextBoxGotMouseCapture(object sender, MouseEventArgs e)
{
//初始没有鼠标焦点时，datePickerTextBox为只读控件，鼠标点击后，变为可编辑
datePickerTextBox.IsReadOnly = false;
//初始状态，如果没有值，并且有鼠标点击，则添加所有事件和绑定
if (string.IsNullOrEmpty(datePickerTextBox.Text))
{
#region 因为前期不能有值，因此需要将绑定移到后台代码动态添加(因是否显示时间分情况添加不同绑定)
if (NoTime)
{
var dateTextBoxNoTimeConverter = new DateTextBoxNoTimeConverter();
var datePickerTextBoxTextBinding = new Binding("SelectedDateTime")
{
Source = this, Converter = dateTextBoxNoTimeConverter, Mode = BindingMode.OneWay
};
datePickerTextBox.SetBinding(TextBox.TextProperty, datePickerTextBoxTextBinding);
}
else
{
var dateTextBoxConverter = new DateTextBoxConverter();
var datePickerTextBoxTextBinding = new Binding("SelectedDateTime")
{
Source = this, Converter = dateTextBoxConverter, Mode = BindingMode.OneWay
};
datePickerTextBox.SetBinding(TextBox.TextProperty, datePickerTextBoxTextBinding);
}
#endregion
#region 原有功能添加数据源和事件
button.Click += ButtonClick;
calendar.SelectedDatesChanged += CalendarSelectedDatesChanged;
if (!NoTime)
{
hourComboBox.ItemsSource = hourSource;
hourComboBox.SelectionChanged += HourComboBoxSelectionChanged;
minuteComboBox.ItemsSource = clockSource;
minuteComboBox.SelectionChanged += MinuteComboBoxSelectionChanged;
secondComboBox.ItemsSource = clockSource;
secondComboBox.SelectionChanged += SecondComboBoxSelectionChanged;
ampmComboBox.ItemsSource = ampmSource.Values;
ampmComboBox.SelectionChanged += AmPmComboBoxSelectionChanged;
}
#endregion
#region 新加功能添加事件
//输入的数字必须在KeyUp事件才能处理，因此，将取消特定按键的输入放在PreviewKeyDown,将所有的处理逻辑放在KeyUp
datePickerTextBox.KeyUp += DatePickerTextBoxKeyUp; //方向与空格键不支持KeyDown，事件优先级不够，会被挂起
datePickerTextBox.PreviewKeyDown += DatePickerTextBoxPreviewKeyDown; //因为要彻底取消空格和字母的输入，因此采用PreviewKeyDown对可以支持KeyDown的按键的输入操作进行拦截
#endregion
//默认点击后选中的是月份
selectCell = 2;
}
else
{
selectCell = GetMouseCell(datePickerTextBox.CaretIndex);
}
UpdateStartAndEnd(selectCell, ref start, ref length);
datePickerTextBox.Select(start, length);
}