Rows cannot be programmatically added to the datagridview's row collection when the control is data-bound

Question

First of all, I looked up this related question in here but the solution dataGridView1.Rows.Add() doesn\'t work in my case.

In my Datagridview, I have

Answer 1

When I write this line in Form_Load

DGVData.DataSource = DataSQLite.GetData("SELECT * from tableName");

And trying to add a new row this error appeared to me

Instead of using DataSource try this code

 private void Form_Load(object sender, EventArgs e) {
        DataSQLite.OpenDB();      // this line to open connection to Database and DataSQLite class i created it
        DataTable tbl = DataSQLite.GetData("SELECT * from tableName");
        for (int i = 0; i < tbl.Rows.Count; i++) {
            DGVData.Rows.Add();  // this line will create new blank row
            for (int j = 0; j < Numberofcolumns; j++) {
                DGVData.Rows[i].Cells[j].Value = tbl.Rows[i][j].ToString();
            }
        }
    }

After this code you can easily add rows