72 lines
2.1 KiB
C#
72 lines
2.1 KiB
C#
using Components.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.Threading.Tasks;
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using System.Windows.Forms;
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namespace Components
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{
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public partial class UserControlIntegerInput : UserControl
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{
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private event EventHandler? _elementChanged;
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private event Action? _errorOccured;
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public string Error { get; private set; }
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public int? InputtedInteger
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{
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get
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{
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if (checkBoxNullable.Checked)
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{
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return null;
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}
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if (textBoxInteger.Text.Equals(string.Empty) || textBoxInteger.Text == null)
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{
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throw new UncheckedNullException("Input was null, but checkbox wasnt checked");
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}
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if (Int32.TryParse(textBoxInteger.Text, out var number))
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{
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return number;
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}
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throw new UnexpectedTypeException("Input was non integer");
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}
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set
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{
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textBoxInteger.Text = value.ToString();
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checkBoxNullable.Checked = value == null;
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}
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}
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public event EventHandler ElementChanged
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{
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add { _elementChanged += value; }
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remove { _elementChanged -= value; }
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}
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public event Action AnErrorOccurred
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{
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add { _errorOccured += value; }
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remove { _errorOccured -= value; }
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}
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public UserControlIntegerInput()
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{
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InitializeComponent();
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Error = string.Empty;
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}
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private void textBoxInteger_TextChanged(object sender, EventArgs e)
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{
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_elementChanged?.Invoke(this, e);
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}
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private void checkBoxNullable_CheckedChanged(object sender, EventArgs e)
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{
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textBoxInteger.Enabled = !checkBoxNullable.Checked;
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textBoxInteger.Text = null;
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_elementChanged?.Invoke(this, e);
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}
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}
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}
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