128 lines
2.0 KiB
C#
128 lines
2.0 KiB
C#
using KOP_Labs.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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using static System.Windows.Forms.VisualStyles.VisualStyleElement.Button;
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namespace KOP_Labs
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{
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public partial class TextBoxComponent : UserControl
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{
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public TextBoxComponent()
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{
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InitializeComponent();
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Error = string.Empty;
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}
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public string Error { get; private set; }
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public float? Value
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{
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get
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{
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if (checkBox1.Checked)
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{
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return null;
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}
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if (CheckValue())
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{
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return float.Parse(textBox.Text);
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}
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return null;
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}
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set
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{
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if (value == null)
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{
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checkBox1.Checked = true;
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}
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textBox.Text = value.ToString();
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}
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}
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private EventHandler checkChanged;
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public event EventHandler CheckChanged
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{
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add
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{
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checkChanged += value;
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}
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remove
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{
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checkChanged -= value;
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}
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}
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private void CheckBox_CheckedChanged(object sender, EventArgs e)
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{
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Error = string.Empty;
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if (checkBox1.Checked)
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{
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textBox.Enabled = false;
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textBox.Text = string.Empty;
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}
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else
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{
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textBox.Enabled = true;
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}
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checkChanged?.Invoke(sender, e);
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}
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private EventHandler valueChanged;
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public event EventHandler ValueChanged
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{
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add
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{
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valueChanged += value;
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}
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remove
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{
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valueChanged -= value;
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}
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}
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public bool CheckValue()
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{
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Error = string.Empty;
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if (!checkBox1.Checked && (string.IsNullOrEmpty(textBox.Text)))
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{
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Error = "Пусто!";
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return false;
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}
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if (!checkBox1.Checked && !float.TryParse(textBox.Text, out float floatValue))
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{
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Error = "Не тот тип!";
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return false;
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}
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return true;
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}
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private void TextBox_TextChanged(object sender, EventArgs e)
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{
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valueChanged?.Invoke(sender, e);
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}
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}
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}
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