آموزش برنامه نویسی

شمارش سطرهای تیک خورده DataGridView

using System;
using System.Windows.Forms;

namespace WindowsFormsApplication8
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private int getCheckRows(){
            int result = 0;

            for (int rowCounter = this.dataGridView1.Rows.Count -1; rowCounter >=0; rowCounter--)
            {
                if (Convert.ToBoolean(this.dataGridView1.Rows[rowCounter].Cells[1].Value) == true)
                {
                    result++;
                }
            }
            return result;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.dataGridView1.Rows.Add("Siavash", true);
            this.dataGridView1.Rows.Add("Soroush", false);
            this.dataGridView1.Rows.Add("Amin", false);
            this.dataGridView1.Rows.Add("siavash", true);
            this.dataGridView1.Rows.Add("Siavash", true);
            this.dataGridView1.Rows.Add("Soroush", false);
            this.dataGridView1.Rows.Add("Amin", false);
            this.dataGridView1.Rows.Add("siavash", true);

            this.label1.Text = getCheckRows().ToString();
        }

        private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
        {
            int count = this.getCheckRows();
            if (count > 4 && Convert.ToBoolean(this.dataGridView1.CurrentCell.Value) == false)
            {
                e.Cancel = true;                     
            }
        }

        private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
        {
            if (dataGridView1.IsCurrentCellDirty)
            {
                this.dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
            }
        }

        private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
        {
            int countRowChecked = getCheckRows();
            this.label1.Text = countRowChecked.ToString();
        }
    }
}