How to import data into datagridview from .txt file

Question

I have create a method that stores data from a datagridview into a.txt file. This runs when the application closes and works as I would like it too. I was wondering how I can then load this data back into the datagrid when the application loads again. This is the method that stores the data:

private void StoreData()
{
    var dataGrid = dataGridViewRegisteredVehicles;
    TextWriter writer = new StreamWriter(@"C:\DatagridStorage\Text.txt");
    for (int i = 0; i < dataGrid.Rows.Count; i++)
    {
        for (int j = 0; j < dataGrid.Columns.Count; j++)
        {
            writer.Write("\t" + dataGrid.Rows[i].Cells[j].Value.ToString() + "\t" + "|");
        }
        writer.WriteLine("");
        writer.WriteLine("-----------------------------------------------------");
    }
    writer.Close();
    MessageBox.Show("Data Exported");
}

Answer 1

Try this for ideas:

• Make a new form

• Put a datagridview on your form

• Put this code in the FormClosing event (double click FormClosing in the formdesigner, in the lightning bolt of the properties grid after clicking the background of the form)

    (dataGridView1.DataSource as DataTable).WriteXml("grid.xml");

• Put this code in the FormLoad event

    var dt = new DataTable();
    if(File.Exists("grid.xml")){
      dt.ReadXml("grid.xml");
    } else {
      dt.Columns.Add("Name");
      dt.Columns.Add("Age");
    }
    dataGridView1.DataSource = dt;