Getting incorrect value from datagridviewcheckboxcolumn?

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I have a datagridview(dgv) , in which i adding first column as dgvcheckboxcolumn and i am able to extract value of second column whose checkboxcell checked. but i am getting a different type of error that is "when i check 1st row checkbox its value not retrived but when i check any other row check box previously checked row value retrived" , but i want to extract instant value , i.e if i checked 1st rows's checkbox i want 1st rows 2nd column value.

here is my code i know something simple mistake i did but cant trace where is error ,

C#

private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
   try
   {
     List<DataGridViewRow> rows_with_checked_column = new List<DataGridViewRow>();

     foreach (DataGridViewRow row in dataGridView1.Rows)
     {
        if (Convert.ToBoolean(row.Cells[SerialNo.Name].Value) == true)
        {
         rows_with_checked_column.Add(row);
         data = row.Cells[1].Value.ToString();
        }
       row.Cells[SerialNo.Name].Value = false;
     }

    ifile.IniWriteValue("Config Section", "INDENT_NO", data);
    txtindentcode.Text = data;
    txtfromstore.Text = fm;
     txttostore.Text = to;
}

Posted 7-Dec-15 20:36pm

Member 11543226

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[no name] 8-Dec-15 3:54am

It is problem only with 1st row checkbox only? For other row checkboxes you are getting value?

Member 11543226 8-Dec-15 5:05am

i found solution to this problem by following line,
data = dataGridView1.Rows[index].Cells[1].Value.ToString();
But,
"if (Convert.ToBoolean(row.Cells[SerialNo.Name].Value) == true)" this condition false for thirst check after that it gives proper values , whts wrong with this code?

Member 11543226 8-Dec-15 4:04am

for all rows checkboxex when i check any box at that time in cellClick event it gets null value (i.e no box checked), and then i checkd another box in cellclick event it gets previously checked box rows's value.

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Anisuzzaman Sumon · Answer 1 · 2015-12-08T17:19:00

Use like below code:

C#

       public Form1()
        {
            InitializeComponent();

            dgvEmployee.DataSource = new Employee().GetSampleData();
            DataGridViewCheckBoxColumn colChk = new DataGridViewCheckBoxColumn();
            colChk.DisplayIndex = 0;
            dgvEmployee.Columns.Add(colChk);
            dgvEmployee.RowHeadersVisible = false;
        }

        private void btnGetChecked_Click(object sender, EventArgs e)
        {
            List<employee> lstEmp = new List<employee>();
            foreach (DataGridViewRow row in dgvEmployee.Rows)
            {
                DataGridViewCheckBoxCell chk = row.Cells[0] as DataGridViewCheckBoxCell;
                if (Convert.ToBoolean(chk.Value) == true)
                {
                    lstEmp.Add(new Employee { FirstName = row.Cells[1].Value.ToString(), LastName = row.Cells[2].Value.ToString(), Salary =Convert.ToInt32(row.Cells[3].Value.ToString()) });
                }

            }

           
        }

</employee></employee>