About DataGridview run time column generation

Hai guys..
Please see this code...
DataGridViewColumn col26 = new DataGridViewColumn();
            DataGridViewCell cel26= new DataGridViewTextBoxCell();
            col26.CellTemplate = cel26;
            col26.HeaderText = "TDS";
            col26.Name = "TDS";
            col26.Visible = true;
            col26.Width = 40;
            dgvEmployeeSalary.Columns.Add(col26);
            {
                foreach (DataGridViewRow row in dgvEmployeeSalary.Rows)
                {
                    if (row.Cells["Employee ID"].Value != null)
                    {
                        row.Cells["TDS"].Value = 0;
                    }
                }
            }
while running ,TDS named column is added to dgvEmployeeSalary.

So here my problem is while iam trying to change the item in combobox TDS row generated for 2 times..it depends on how many times iam changing the item in combobox,the tds count will be incremented.. can any one help me

Thanks & Regards
divya

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

14y ago
Accepted answer
Before adding your new column into datagridview check the existence of it. If it is not present then add it otherwise update the cell value.

if (dgvEmployeeSalary.Columns.Contains("TDS")) == false)
{
add the column into gridview
}
else
{
update the cell value.
}

I have not tested the above code.
divya14y ago
Thanku you Murali...