在 DataGridView c# 中添加列和行

Question

I have actually a datagridview loaded with sql query. i want to add a new column with some rows without clean all the data.

The values which I will insert in the rows are string in a list. And this list is loaded by an sql query made by the first column of the datagridview already loaded.

So i wanted to do basically:

Seals_DataGridView.Columns.Add("column_Type", "Title Column");

        Seals_DataGridView.Rows.Add("GOGO"); 

But obviously this one doesn't work

Anyone have and idea to help me?

Thanks

Answer 1

If you want to add rows from code try using DataTable and DataGridViewDataSource

string constring = @"Data Source=.\SQL2005;Initial Catalog=Northwind;User id = sa;password=pass@123";
        using (SqlConnection con = new SqlConnection(constring))
        {
            using (SqlCommand cmd = new SqlCommand("SELECT * FROM Customers", con))
            {
                cmd.CommandType = CommandType.Text;
                using (SqlDataAdapter sda = new SqlDataAdapter(cmd))
                {
                    using (DataTable dt = new DataTable())
                    {
                        sda.Fill(dt);
                        dataGridView1.DataSource = dt;
                    }
                }
            }

and other best way is to use Grapically

Comming to your problem

Seals_DataGridView.Columns.Add("column_Type", "Title Column");
        Seals_DataGridView.Rows.Add("GOGO"); 

Code you given worked perfectly for me i don't know what the issue with your code you have to elaborate