Add rows, `DataGridView`

Users can add rows to a DataGridView. We place C# code in an event handler such as RowEnter to read in the data that was added.

The screenshot shows a DataGridView control where several rows were added. In the DataGridView, one column exists. This was added in the Form1_Load event handler.

`RowEnter`

We use the Load event on the form and the RowEnter event on the DataGridView. To create the Load event handler, double-click on the window.

Tip This event will trigger every time the user presses Enter. This is a useful event to handle in your programs.

Info In dataGridView1_RowEnter, we access the Rows property, and then loop over all the rows and then the cells.

Then We create a string. We change the Form Text property to be equal to that string. You can add rows to your DataGridView using C# code.

using System;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // Create one column.
            this.dataGridView1.Columns.Add("Text", "Text");
        }

        private void dataGridView1_RowEnter(object sender, DataGridViewCellEventArgs e)
        {
            // Get all rows entered on each press of Enter.
            var collection = this.dataGridView1.Rows;
            string output = "";
            foreach (DataGridViewRow row in collection)
            {
                foreach (DataGridViewCell cell in row.Cells)
                {
                    if (cell.Value != null)
                    {
                        output += cell.Value.ToString() + " ";
                    }
                }
            }
            // Display.
            this.Text = output;
        }
    }
}

A DataGridView is not just a way to display data from a database. It also allows user input—you can use it to have users enter data.

Add rows, DataGridView

RowEnter

Add rows, `DataGridView`

`RowEnter`