datagridviewcheckboxcolumn is false?

fugio

New member
Joined
Jul 21, 2013
Messages
3
Programming Experience
Beginner
help delegate.png
I'm implementing a function. While choosing any of datagridviewcheckboxcolumn in form1 and show form2 when click button to close, datagridviewcheckboxcolumn in the form1 will is false ?
Please help on this.
C#:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;


namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        Form2 Frm2 = new Form2();
        public Form1()
        {
            InitializeComponent();
            DataGridViewCheckColumn();


            Frm2.newEvent += new FrmCheckbox(Frm2_Event);
           
        }
        public void DataGridViewCheckColumn()
        {


            dataGridView1.ColumnCount = 6;


            dataGridView1.AllowUserToAddRows = false;


            DataGridViewCheckBoxColumn colCB = new 


DataGridViewCheckBoxColumn();
            colCB.Name = "chkcol";
            colCB.HeaderText = "Select";
            colCB.Width = 40;
            dataGridView1.Columns.Add(colCB);




            dataGridView1.Columns[0].Name = "C0";
            dataGridView1.Columns[1].Name = "C1";
            dataGridView1.Columns[2].Name = "C2";
            dataGridView1.Columns[3].Name = "C3";
            dataGridView1.Columns[4].Name = "C4";
            dataGridView1.Columns[5].Name = "C5";


            dataGridView1.Columns[0].HeaderText = "C0";
            dataGridView1.Columns[1].HeaderText = "C1";
            dataGridView1.Columns[2].HeaderText = "C2";
            dataGridView1.Columns[3].HeaderText = "C3";
            dataGridView1.Columns[4].HeaderText = "C4";
            dataGridView1.Columns[5].HeaderText = "C5";


            dataGridView1.Columns[0].Width = 40;
            dataGridView1.Columns[1].Width = 40;
            dataGridView1.Columns[2].Width = 40;
            dataGridView1.Columns[3].Width = 40;
            dataGridView1.Columns[4].Width = 40;
            dataGridView1.Columns[5].Width = 40;




            dataGridView1.Rows.Add(new string[] { "A1", "B1", "C1", 


"D1", "E1", "F1" });
            dataGridView1.Rows.Add(new string[] { "A2", "B2", "C2", 


"D2", "E2", "F2" });
            dataGridView1.Rows.Add(new string[] { "A3", "B3", "C3", 


"D3", "E3", "F3" });
            dataGridView1.Rows.Add(new string[] { "A4", "B4", "C4", 


"D4", "E4", "F4" });
            dataGridView1.Rows.Add(new string[] { "A5", "B5", "C5", 


"D5", "E5", "F5" });
            dataGridView1.Rows.Add(new string[] { "A6", "B6", "C6", 


"D6", "E6", "F6" });
            dataGridView1.Rows.Add(new string[] { "A7", "B7", "C7", 


"D7", "E7", "F7" });








            dataGridView1.AutoResizeColumns();
        }


        void Frm2_Event()
        {
          
            //for (int i = 0; i <= dataGridView1.Rows.Count - 1; i++)
            //{


            //    if (Convert.ToBoolean(dataGridView1.Rows[i].Cells


["chkcol"].Value) == true )
            //    {
            //        dataGridView1.Rows[i].Cells["chkcol"].Value = false ;
            //    }


            //}
            foreach (DataGridViewRow row in dataGridView1.Rows)
            {
                if (Convert.ToBoolean(row.Cells["chkcol"].Value) == true)
                {
                    row.Cells["chkcol"].Value = false;
                }
            }
            
        }


        private void dataGridView1_CellContentClick(object sender, 


DataGridViewCellEventArgs e)
        {
             for (int i = 0; i <= dataGridView1.RowCount - 1; i++)
            {
                if (Convert.ToBoolean(dataGridView1.Rows


[e.RowIndex].Cells["chkcol"].Value = true))
                {
                    Frm2.ShowDialog();
                    break;
                }
            }
           
        }


    }
}
C#:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;


 namespace WindowsFormsApplication1
 {
     public delegate void FrmCheckbox();
     public partial class Form2 : Form
     {
         public event FrmCheckbox newEvent;
         public Form2()
         {
             InitializeComponent();
            //button1.Click +=new EventHandler (button1_Click );
         }


         private void button1_Click(object sender, EventArgs e)
         {
             if (newEvent != null)
             {
                 newEvent();


             }
         }


        


        
     }
 }
 

JohnH

C# Forum Moderator
Staff member
Joined
Apr 23, 2011
Messages
811
Location
Norway
Programming Experience
10+
The cell value has not changed when the cell is still in edit mode. That happens on CellEndEdit event, and can be forced with EndEdit method.
 
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