using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace samusev_42 { public partial class EditForm : Form { /// валидация public EditForm() { InitializeComponent(); this.textBox5.Validating += textBoxPrice_Validating; } private void textBoxPrice_Validating(object sender, CancelEventArgs e) { if (!string.IsNullOrWhiteSpace(textBox5.Text) && !decimal.TryParse(textBox5.Text, out _)) { MessageBox.Show("В поле 'Цена' можно вводить только числа!", "Ошибка формата", MessageBoxButtons.OK, MessageBoxIcon.Warning); textBox5.SelectAll(); e.Cancel = true; } } private void SaveEditButton_Click(object sender, EventArgs e) { } private void label10_Click(object sender, EventArgs e) { } private void EditForm_Load(object sender, EventArgs e) { } private void label7_Click(object sender, EventArgs e) { } } }