cscの作法 その351

概要

cscの作法、調べてみた。
練習問題、やってみた。

練習問題

datagridviewの入力にDatetimePickerを使え。

写真

サンプルコード

using System;
using System.Windows.Forms;
using System.Drawing;

public partial class form1: Form {
	DateTimePicker cal1;
	DataGridView dg1;
	int row,
		coloum;
	public form1() {
		Text = "calender";
		ClientSize = new Size(600, 400);
		dg1 = new DataGridView();
		dg1.Location = new Point(50, 20);
		dg1.Width = 500;
    	dg1.Height = 300;
		Controls.AddRange(new Control[] {
			dg1
		});
		dg1.ColumnCount = 4;
		dg1.Columns[0].HeaderText = "ID";
		dg1.Columns[1].HeaderText = "日付";
		dg1.Columns[2].HeaderText = "商品";
		dg1.Columns[3].HeaderText = "個数";
		dg1.Rows.Add(new Object[] {1, "6/8/2023", "みかん", 100});
		dg1.Rows.Add(new Object[] {2, "6/8/2023", "りんご", 300});
		dg1.Rows.Add(new Object[] {3, "6/8/2023", "バナナ", 200});
		dg1.Rows.Add(new Object[] {4, "6/8/2023", "すいか", 300});
		dg1.Rows.Add(new Object[] {5, "6/8/2023", "いちご", 200});
		dg1.Rows.Add(new Object[] {6, "6/8/2023", "メロン", 100});
		dg1.Columns[0].DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
		dg1.Columns[2].DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
		dg1.CellClick += new DataGridViewCellEventHandler(OnChanged);
	}
	private void OnChanged(object sender, DataGridViewCellEventArgs e) {
		if (e.ColumnIndex == 1)
		{
			cal1 = new System.Windows.Forms.DateTimePicker();
			Rectangle dgvRectangle = dg1.GetCellDisplayRectangle(e.ColumnIndex, e.RowIndex, true);
			cal1.Location = new Point(dgvRectangle.X, dgvRectangle.Y);
			cal1.CloseUp += cal1_DateSelected;
			dg1.Controls.Add(cal1);
			cal1.Show();
			coloum = e.ColumnIndex;
			row = e.RowIndex;
		}
	}
	private void cal1_DateSelected(object sender, System.EventArgs e) {
		dg1[coloum, row].Value = cal1.Value.ToString("MM/dd/yyyy");
		(sender as DateTimePicker).Dispose();
	}
	[STAThread]
	public static void Main() {
		Application.Run(new form1());
	}
}

以上。