Tôi không thể tìm thấy một trên web, vì vậy tôi đã tạo nó từ đầu. Tôi không hoàn toàn hiểu thuộc tính phụ thuộc, vì vậy tôi bỏ qua những người cho bây giờ. Điều khiển là kiểm soát bộ chọn thời gian 12 giờ. Tôi mới vào WPF vì vậy tôi không hoàn toàn hiểu tất cả các cú pháp ngôn ngữ mới nhưng điều khiển này sẽ làm các trick cho tôi trong dự án tôi đang tạo ở nhà.
Nó hỗ trợ cài đặt thời gian như là một DateTime hoặc một TimeSpan.
Dưới đây tôi sẽ dán XAML và Code-Behind. Các XAML
<UserControl x:Class="WorkDayManager3.WPF.UserControls.TimeControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="35" d:DesignWidth="100">
<Border BorderBrush="LightBlue" BorderThickness="1" Margin="1">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="5" />
<ColumnDefinition />
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<TextBox x:Name="txtHours" BorderThickness="0" MaxLength="2" TextAlignment="Center" HorizontalAlignment="Center" VerticalAlignment="Center" Text="1" KeyUp="txt_KeyUp" MouseWheel="txt_MouseWheel" PreviewKeyUp="txt_PreviewKeyUp" />
<TextBlock Text=":" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" />
<TextBox x:Name="txtMinutes" BorderThickness="0" MaxLength="2" TextAlignment="Center" Grid.Column="2" HorizontalAlignment="Center" VerticalAlignment="Center" Text="00" KeyUp="txt_KeyUp" MouseWheel="txt_MouseWheel" PreviewKeyUp="txt_PreviewKeyUp" />
<TextBox x:Name="txtAmPm" BorderThickness="0" MaxLength="2" TextAlignment="Center" Grid.Column="3" HorizontalAlignment="Left" VerticalAlignment="Center" PreviewTextInput="txtAmPm_PreviewTextInput" Text="AM" KeyUp="txt_KeyUp" MouseWheel="txt_MouseWheel" Padding="0, 0, 3, 0" />
<Grid Grid.Column="4">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Button x:Name="btnUp" Focusable="False" Click="btnUp_Click">
<TextBlock Text="p" FontFamily="Wingdings 3" HorizontalAlignment="Center" VerticalAlignment="Center" />
</Button>
<Button x:Name="btnDown" Grid.Row="1" Focusable="False" Click="btnDown_Click">
<TextBlock Text="q" FontFamily="Wingdings 3" HorizontalAlignment="Center" VerticalAlignment="Center" />
</Button>
</Grid>
</Grid>
</Border>
</UserControl>
code-behind
using System;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
namespace WorkDayManager3.WPF.UserControls
{
/// <summary>
/// Interaction logic for TimeControl.xaml
/// </summary>
public partial class TimeControl : UserControl
{
public TimeControl()
{
InitializeComponent();
}
#region Properties
/// <summary>
/// Gets or sets the date time value.
/// </summary>
/// <value>The date time value.</value>
public DateTime? DateTimeValue
{
get
{
string hours = this.txtHours.Text;
string minutes = this.txtMinutes.Text;
string amPm = this.txtAmPm.Text;
if (!string.IsNullOrWhiteSpace(hours)
&& !string.IsNullOrWhiteSpace(minutes)
&& !string.IsNullOrWhiteSpace(amPm))
{
string value = string.Format("{0}:{1} {2}", this.txtHours.Text, this.txtMinutes.Text, this.txtAmPm.Text);
DateTime time = DateTime.Parse(value);
return time;
}
else
{
return null;
}
}
set
{
DateTime? time = value;
if (time.HasValue)
{
string timeString = time.Value.ToShortTimeString();
//9:54 AM
string[] values = timeString.Split(':', ' ');
if (values.Length == 3)
{
this.txtHours.Text = values[0];
this.txtMinutes.Text = values[1];
this.txtAmPm.Text = values[2];
}
}
}
}
/// <summary>
/// Gets or sets the time span value.
/// </summary>
/// <value>The time span value.</value>
public TimeSpan? TimeSpanValue
{
get
{
DateTime? time = this.DateTimeValue;
if (time.HasValue)
{
return new TimeSpan(time.Value.Ticks);
}
else
{
return null;
}
}
set
{
TimeSpan? timeSpan = value;
if (timeSpan.HasValue)
{
this.DateTimeValue = new DateTime(timeSpan.Value.Ticks);
}
}
}
#endregion
#region Event Subscriptions
/// <summary>
/// Handles the Click event of the btnDown control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.RoutedEventArgs"/> instance containing the event data.</param>
private void btnDown_Click(object sender, RoutedEventArgs e)
{
string controlId = this.GetControlWithFocus().Name;
if ("txtHours".Equals(controlId))
{
this.ChangeHours(false);
}
else if ("txtMinutes".Equals(controlId))
{
this.ChangeMinutes(false);
}
else if ("txtAmPm".Equals(controlId))
{
this.ToggleAmPm();
}
}
/// <summary>
/// Handles the Click event of the btnUp control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.RoutedEventArgs"/> instance containing the event data.</param>
private void btnUp_Click(object sender, RoutedEventArgs e)
{
string controlId = this.GetControlWithFocus().Name;
if ("txtHours".Equals(controlId))
{
this.ChangeHours(true);
}
else if ("txtMinutes".Equals(controlId))
{
this.ChangeMinutes(true);
}
else if ("txtAmPm".Equals(controlId))
{
this.ToggleAmPm();
}
}
/// <summary>
/// Handles the PreviewTextInput event of the txtAmPm control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.Input.TextCompositionEventArgs"/> instance containing the event data.</param>
private void txtAmPm_PreviewTextInput(object sender, TextCompositionEventArgs e)
{
// prevent users to type text
e.Handled = true;
}
/// <summary>
/// Handles the KeyUp event of the txt control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.Input.KeyEventArgs"/> instance containing the event data.</param>
private void txt_KeyUp(object sender, KeyEventArgs e)
{
// check for up and down keyboard presses
if (Key.Up.Equals(e.Key))
{
btnUp_Click(this, null);
}
else if (Key.Down.Equals(e.Key))
{
btnDown_Click(this, null);
}
}
/// <summary>
/// Handles the MouseWheel event of the txt control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.Input.MouseWheelEventArgs"/> instance containing the event data.</param>
private void txt_MouseWheel(object sender, MouseWheelEventArgs e)
{
if (e.Delta > 0)
{
btnUp_Click(this, null);
}
else
{
btnDown_Click(this, null);
}
}
/// <summary>
/// Handles the PreviewKeyUp event of the txt control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.Input.KeyEventArgs"/> instance containing the event data.</param>
private void txt_PreviewKeyUp(object sender, KeyEventArgs e)
{
TextBox textBox = (TextBox)sender;
// make sure all characters are number
bool allNumbers = textBox.Text.All(Char.IsNumber);
if (!allNumbers)
{
e.Handled = true;
return;
}
// make sure user did not enter values out of range
int value;
int.TryParse(textBox.Text, out value);
if ("txtHours".Equals(textBox.Name) && value > 12)
{
EnforceLimits(e, textBox);
}
else if ("txtMinutes".Equals(textBox.Name) && value > 59)
{
EnforceLimits(e, textBox);
}
}
#endregion
#region Methods
/// <summary>
/// Changes the hours.
/// </summary>
/// <param name="isUp">if set to <c>true</c> [is up].</param>
private void ChangeHours(bool isUp)
{
int value = Convert.ToInt32(this.txtHours.Text);
if (isUp)
{
value += 1;
if (value == 13)
{
value = 1;
}
}
else
{
value -= 1;
if (value == 0)
{
value = 12;
}
}
this.txtHours.Text = Convert.ToString(value);
}
/// <summary>
/// Changes the minutes.
/// </summary>
/// <param name="isUp">if set to <c>true</c> [is up].</param>
private void ChangeMinutes(bool isUp)
{
int value = Convert.ToInt32(this.txtMinutes.Text);
if (isUp)
{
value += 1;
if (value == 60)
{
value = 0;
}
}
else
{
value -= 1;
if (value == -1)
{
value = 59;
}
}
string textValue = Convert.ToString(value);
if (value < 10)
{
textValue = "0" + Convert.ToString(value);
}
this.txtMinutes.Text = textValue;
}
/// <summary>
/// Enforces the limits.
/// </summary>
/// <param name="e">The <see cref="System.Windows.Input.KeyEventArgs"/> instance containing the event data.</param>
/// <param name="textBox">The text box.</param>
/// <param name="enteredValue">The entered value.</param>
private static void EnforceLimits(KeyEventArgs e, TextBox textBox)
{
string enteredValue = GetEnteredValue(e.Key);
string text = textBox.Text.Replace(enteredValue, "");
if (string.IsNullOrEmpty(text))
{
text = enteredValue;
}
textBox.Text = text;
e.Handled = true;
}
/// <summary>
/// Gets the control with focus.
/// </summary>
/// <returns></returns>
private TextBox GetControlWithFocus()
{
TextBox txt = new TextBox();
if (this.txtHours.IsFocused)
{
txt = this.txtHours;
}
else if (this.txtMinutes.IsFocused)
{
txt = this.txtMinutes;
}
else if (this.txtAmPm.IsFocused)
{
txt = this.txtAmPm;
}
return txt;
}
/// <summary>
/// Gets the entered value.
/// </summary>
/// <param name="key">The key.</param>
/// <returns></returns>
private static string GetEnteredValue(Key key)
{
string value = string.Empty;
switch (key)
{
case Key.D0:
case Key.NumPad0:
value = "0";
break;
case Key.D1:
case Key.NumPad1:
value = "1";
break;
case Key.D2:
case Key.NumPad2:
value = "2";
break;
case Key.D3:
case Key.NumPad3:
value = "3";
break;
case Key.D4:
case Key.NumPad4:
value = "4";
break;
case Key.D5:
case Key.NumPad5:
value = "5";
break;
case Key.D6:
case Key.NumPad6:
value = "6";
break;
case Key.D7:
case Key.NumPad7:
value = "7";
break;
case Key.D8:
case Key.NumPad8:
value = "8";
break;
case Key.D9:
case Key.NumPad9:
value = "9";
break;
}
return value;
}
/// <summary>
/// Toggles the am pm.
/// </summary>
private void ToggleAmPm()
{
if ("AM".Equals(this.txtAmPm.Text))
{
this.txtAmPm.Text = "PM";
}
else
{
this.txtAmPm.Text = "AM";
}
}
#endregion
}
}
Đó là sự kiểm soát, cảm thấy tự do thực hiện sửa đổi khi cần thiết. Đó không phải là hoàn hảo nhưng nó tốt hơn so với các điều khiển khác tôi đã tìm thấy
Nguồn
2010-10-16 17:51:57
Đây là một ví dụ khá hay, tôi chỉ cần nhập bàn phím và chuột mà không thay đổi mã. :-) – wonea
bộ chọn thời gian là khủng khiếp – CRice