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1 using System;
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2 using System.Windows;
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3 using System.Windows.Controls;
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4 using System.Windows.Input;
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5
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6 namespace Microsoft.Windows.Controls
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7 {
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8 public class WatermarkTextBox : TextBox
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9 {
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10 #region Properties
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11
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12 #region SelectAllOnGotFocus
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13
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14 public static readonly DependencyProperty SelectAllOnGotFocusProperty = DependencyProperty.Register("SelectAllOnGotFocus", typeof(bool), typeof(WatermarkTextBox), new PropertyMetadata(false));
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15 public bool SelectAllOnGotFocus
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16 {
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17 get { return (bool)GetValue(SelectAllOnGotFocusProperty); }
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18 set { SetValue(SelectAllOnGotFocusProperty, value); }
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19 }
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20
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21 #endregion //SelectAllOnGotFocus
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22
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23 #region Watermark
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24
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25 public static readonly DependencyProperty WatermarkProperty = DependencyProperty.Register("Watermark", typeof(object), typeof(WatermarkTextBox), new UIPropertyMetadata(null));
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26 public object Watermark
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27 {
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28 get { return (object)GetValue(WatermarkProperty); }
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29 set { SetValue(WatermarkProperty, value); }
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30 }
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31
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32 #endregion //Watermark
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33
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34 #region WatermarkTemplate
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35
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36 public static readonly DependencyProperty WatermarkTemplateProperty = DependencyProperty.Register("WatermarkTemplate", typeof(DataTemplate), typeof(WatermarkTextBox), new UIPropertyMetadata(null));
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37 public DataTemplate WatermarkTemplate
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38 {
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39 get { return (DataTemplate)GetValue(WatermarkTemplateProperty); }
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40 set { SetValue(WatermarkTemplateProperty, value); }
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41 }
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42
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43 #endregion //WatermarkTemplate
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44
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45 #endregion //Properties
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46
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47 #region Constructors
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48
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49 static WatermarkTextBox()
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50 {
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51 DefaultStyleKeyProperty.OverrideMetadata(typeof(WatermarkTextBox), new FrameworkPropertyMetadata(typeof(WatermarkTextBox)));
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52 }
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53
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54 #endregion //Constructors
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55
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56 #region Base Class Overrides
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57
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58 protected override void OnGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
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59 {
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60 if (SelectAllOnGotFocus)
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61 SelectAll();
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62
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63 base.OnGotKeyboardFocus(e);
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64 }
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65
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66 protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e)
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67 {
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68 if (!IsKeyboardFocused)
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69 {
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70 e.Handled = true;
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71 Focus();
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72 }
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73
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74 base.OnPreviewMouseLeftButtonDown(e);
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75 }
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76
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77 #endregion //Base Class Overrides
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78 }
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79 }
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