93 lines
2.2 KiB
C#
93 lines
2.2 KiB
C#
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 WinFormsLibrary
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{
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public partial class NumberTextBox : UserControl
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{
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public int? maxValue = null;
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public int? minValue = null;
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public string errorText = "";
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public NumberTextBox()
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{
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InitializeComponent();
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}
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public int? MinValue
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{
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get { return minValue; }
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set
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{
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if (value == null) return;
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minValue = value;
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numericUpDown.Minimum = (int)value;
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}
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}
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public int? MaxValue
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{
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get { return maxValue; }
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set
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{
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if (value == null) return;
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maxValue = value;
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numericUpDown.Maximum = (int)value;
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}
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}
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public decimal? Value
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{
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get {
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if (CheckRanges(numericUpDown.Value))
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{
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return numericUpDown.Value;
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}
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else
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{
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return null;
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}
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}
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set
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{
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if (CheckRanges(value))
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{
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numericUpDown.Value = (decimal)value;
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}
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}
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}
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private bool CheckRanges(decimal? value)
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{
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if (MinValue == null || MaxValue == null)
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{
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errorText = "Ошибка, диапазоны не заданы.";
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return false;
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}
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if (value < MinValue || value > MaxValue)
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{
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errorText = "Ошибка, значение не входит в заданный диапазон.";
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return false;
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}
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errorText = "Ошибок нет.";
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return true;
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}
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public event EventHandler DateChanged
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{
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add { numericUpDown.ValueChanged += value; }
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remove { numericUpDown.ValueChanged -= value; }
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}
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}
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}
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