TextBoxを拡張してユーザーコントロールとして作成しました
以下のプログラムは、数値や日付を入力する TextBox を拡張したユーザーコントロールのサンプルプログラムです。
数値入力
using System;
using System.Text.RegularExpressions;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
namespace UserContril
{
/// <summary>
/// NumericTextBox.xaml の相互作用ロジック
/// <summary>
public partial class NumericTextBox : TextBox
{
public NumericTextBox()
{
InitializeComponent();
this.Loaded += OnLoaded;
this.PreviewTextInput += TextBox_OnPreviewTextInput;
this.GotFocus += TextBox_GotFocus;
this.PreviewLostKeyboardFocus += TextBox_PreviewLostKeyboardFocus;
this.PreviewMouseLeftButtonDown += OnMouseLeftButtonDown;
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
this.Text = "";
}
public int IntValue()
{
string txt = this.Text.Replace(",", "");
int int_value;
double double_value;
if (double.TryParse(txt, out double_value))
{
int_value = (int)double_value;
}
else
{
int_value = 0;
}
return int_value;
}
public double DoubleValue()
{
string txt = this.Text.Replace(",", "");
double double_value;
if (!double.TryParse(txt, out double_value))
{
double_value = 0;
}
return double_value;
}
public Decimal DecimalValue()
{
string txt = this.Text.Replace(",", "");
decimal decimal_value;
if (!decimal.TryParse(txt, out decimal_value))
{
decimal_value = 0;
}
return decimal_value;
}
public void SetValue(object value)
{
String format = (string)this.Format;
if (value != null)
{
if (value is int)
{
if (format == null) format = "D";
this.Text = ((int)value).ToString(format);
}
else if (value is double)
{
if (format == null) format = "F2";
this.Text = ((double)value).ToString(format);
}
else if (value is decimal)
{
if (format == null) format = "F2";
this.Text = ((decimal)value).ToString(format);
}
}
else
{
this.Text = "";
}
}
public void SetIntValue(int int_value)
{
String format = (string)this.Format;
if (format == null) format = "D";
this.Text = ((int)int_value).ToString(format);
}
public void SetDoubleValue(double double_value)
{
String format = (string)this.Format;
if (format == null) format = "F2";
this.Text = ((double)double_value).ToString(format);
}
public void SetDecimalValue(decimal decimal_value)
{
String format = (string)this.Format;
if (format == null) format = "F2";
this.Text = ((decimal)decimal_value).ToString(format);
}
public String Format { set; get; }
public bool IsNotDisplayZero { set; get; }
private void TextBox_OnPreviewTextInput(object sender, TextCompositionEventArgs e)
{
e.Handled = new Regex("[^0-9.-]+").IsMatch(e.Text);
}
private void TextBox_PreviewLostKeyboardFocus(object sender, RoutedEventArgs e)
{
var s = sender as TextBox;
string txt = s.Text.Replace(",", "");
int int_value;
double double_value;
if (Text.Length > 0)
{
if (double.TryParse(txt, out double_value))
{
int_value = (int)double_value;
}
else
{
e.Handled = true;
return;
}
}
else
{
double_value = 0;
int_value = 0;
if (IsNotDisplayZero == true) return;
}
String sbuf2;
String format = (string)this.Format;
if (format == null) format = "D";
if (Regex.IsMatch(format, "[FN][1-9]*") || format.IndexOf(".") > 0)
{
sbuf2 = double_value.ToString(format);
}
else
{
sbuf2 = int_value.ToString(format);
}
this.Text = sbuf2;
}
private void TextBox_GotFocus(object sender, EventArgs e)
{
var s = sender as TextBox;
s.Text = s.Text.Replace(",", "");
s.SelectAll();
}
private void OnMouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (this.IsFocused)
{
return;
}
this.Focus();
e.Handled = true;
}
}
}
追加プロパティ
| Format | 数値編集書式を指定する（ToStringで使用できる形式） |
| IsNotDisplayZero | 入力した値が０の時、何も表示しない（trueまたはfalse ） |
追加メソッド
| IntValue() | 内容をintで取得します |
| DoubleValue() | 内容をdoubleで取得します |
| DecimalValue() | 内容をdecimalで取得します |
| SetValue(Object) | int, double, decimal型の数値を表示します |
| SetIntValue(int) | int型の数値を表示します |
| SetDoubleValue(double) | double型の数値を表示します |
| SetDecimalValue(decimal) | decimal型の数値を表示します |
日付入力
using System;
using System.Linq;
using System.Text.RegularExpressions;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
namespace UserControl
{
/// ;<ummary>
/// DateTextBox.xaml の相互作用ロジック
/// ;<ummary>
public partial class DateTextBox : TextBox
{
public DateTextBox()
{
InitializeComponent();
this.Loaded += OnLoaded;
this.PreviewTextInput += TextBox_OnPreviewTextInput;
this.GotFocus += TextBox_GotFocus;
this.PreviewLostKeyboardFocus += TextBox_PreviewLostKeyboardFocus;
this.PreviewMouseLeftButtonDown += OnMouseLeftButtonDown;
}
private void OnLoaded(object sender, RoutedEventArgs e)
{
this.Text = "";
}
public DateTime? Date()
{
string txt = this.Text;
if (txt.Length > 0)
{
DateTime inDay;
DateTime.TryParse(txt, out inDay);
return inDay;
}
else
{
return null;
}
}
public void SetDate(object date)
{
if (date != null)
{
if (date is DateTime)
{
this.Text = ((DateTime)date).ToString("yyyy年MM月dd日");
}
else
{
this.Text = "";
}
}
else
{
this.Text = "";
}
}
public String Format { set; get; }
public bool Default { set; get; }
private void TextBox_OnPreviewTextInput(object sender, TextCompositionEventArgs e)
{
e.Handled = new Regex("[^0-9.-/]+").IsMatch(e.Text);
}
private void TextBox_PreviewLostKeyboardFocus(object sender, RoutedEventArgs e)
{
var s = sender as TextBox;
string txt = s.Text.Replace(".", "/");
DateTime today = DateTime.Today;
DateTime inDay;
DateTime testDay;
String dt;
if (txt.Length == 0)
{
if (Default == false)
{
return;
}
this.Text = today.ToString("yyyy年MM月dd日");
}
if (txt.Where(c => c == '/').Count() == 0)
{
dt = today.Year + "/" + today.Month + "/" + txt;
if (DateTime.TryParse(dt, out inDay))
{
this.Text = inDay.ToString("yyyy年MM月dd日");
}
}
if (txt.Where(c => c == '/').Count() == 1)
{
dt = today.Year + "/" + txt;
if (DateTime.TryParse(dt, out inDay))
{
this.Text = inDay.ToString("yyyy年MM月dd日");
}
}
if (txt.Where(c => c == '/').Count() == 2)
{
if (DateTime.TryParse(txt, out inDay))
{
this.Text = inDay.ToString("yyyy年MM月dd日");
}
}
if (DateTime.TryParse(this.Text, out testDay)) return;
e.Handled = true;
}
private void TextBox_GotFocus(object sender, EventArgs e)
{
var s = sender as TextBox;
s.SelectAll();
}
private void OnMouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
if (this.IsFocused)
{
return;
}
this.Focus();
e.Handled = true;
}
}
}
追加プロパティ
| Format |
日付編集フォーマットを指定する 指定しない場合は”yyyy年mm月dd日”になる |
| Default | 何も入力しない場合に、システム日付を表示するか指定する（trueまたはfalse ） |
追加メソッド
| Date() |
内容をdateで取得します。 何も入力されていない時は”null”が帰ります。 |
| SetDate(date) | date型の日付を表示します |
xaml内で記述する内容
<local:NumericTextBox x:Name="numeric_1" HorizontalAlignment="Left" Height="23" Margin="96,34,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="100" Format="#,0">
<local:NumericTextBox.InputBindings>
<KeyBinding Key="Enter" Command="{x:Static local:MyWindow.NumericIn_1}" />
</local:NumericTextBox.InputBindings>
</local:NumericTextBox>
<local:DateTextBox x:Name="date_1" HorizontalAlignment="Left" Height="23" Margin="96,65,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="120" Default="True">
<local:DateTextBox.InputBindings>
<KeyBinding Key="Enter" Command="{x:Static local:MyWindow.DateIn_1}" />
</local:DateTextBox.InputBindings>
</local:DateTextBox>
windowのC#で使用する
public MyWindow()
{
InitializeComponent();
// ウィンドウにコマンドを追加します
CommandBindings.Add(new CommandBinding(NumericIn_1, NumericIn_1Exec));
CommandBindings.Add(new CommandBinding(DateIn_1, DateIn_1Exec));
}
// コマンドを定義してインスタンス化する
public static RoutedCommand NumericIn_1 = new RoutedCommand();
public static RoutedCommand DateIn_1 = new RoutedCommand();
// numeric_1でEnterキーが押されると、実行される
private void NumericIn_1Exec(object sender, ExecutedRoutedEventArgs e)
{
/* ここに入力後の処理を書く */
}
// date_1でEnterキーが押されると、実行される
private void DateIn_1Exec(object sender, ExecutedRoutedEventArgs e)
{
/* ここに入力後の処理を書く */
}