83 lines
2.1 KiB
C#
83 lines
2.1 KiB
C#
using ComponentProgramming.Exceptions;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace ComponentProgramming
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{
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public partial class ControlTextBox : UserControl
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{
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public ControlTextBox()
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{
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InitializeComponent();
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}
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private string? _numPattern;
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public string? NumPattern
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{
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get { return _numPattern; }
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set { _numPattern = value; }
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}
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public int? IntegerValue
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{
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get
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{
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if (checkBoxNull.Checked)
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{
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return null;
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}
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if (string.IsNullOrWhiteSpace(textBox.Text))
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{
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return null;
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}
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if (int.TryParse(textBox.Text, out int value))
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{
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return value;
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}
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throw new FormatException("Введенное значение не является целым числом.");
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}
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set
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{
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if (value.HasValue)
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{
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textBox.Text = value.ToString();
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checkBoxNull.Checked = false;
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}
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else
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{
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textBox.Text = string.Empty;
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checkBoxNull.Checked = true;
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}
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}
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}
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private event EventHandler? _textBoxChanged;
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public event EventHandler TextBoxChanged
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{
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add { _textBoxChanged += value; }
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remove { _textBoxChanged -= value; }
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}
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private void textBox_TextChanged(object sender, EventArgs e)
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{
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_textBoxChanged?.Invoke(this, e);
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}
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private void checkBoxNull_CheckedChanged(object sender, EventArgs e)
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{
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textBox.Enabled = !checkBoxNull.Checked;
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_textBoxChanged?.Invoke(this, e);
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}
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}
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}
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