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C# DataGridView Read Only Columns and Rows

The DataGridView control and its related classes are designed to be a flexible, extensible system for displaying and editing tabular data. The ReadOnly property indicates whether the data displayed by the cell can be edited or not. You can set ReadOnly Property in three levels. You can make entire dataGridView or entire column or entire row as ReadOnly .

dataGridView1.ReadOnly = true;

dataGridView1.Rows[index].ReadOnly = true;

dataGridView1.Columns[index].ReadOnly = true;

The following C# source code shows how to make a row as Readonly in a DataGridView.




using System;
using System.Data;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            dataGridView1.ColumnCount = 3;
            dataGridView1.Columns[0].Name = "Product ID";
            dataGridView1.Columns[1].Name = "Product Name";
            dataGridView1.Columns[2].Name = "Product Price";

            string[] row = new string[] { "1", "Product 1", "1000" };
            dataGridView1.Rows.Add(row);
            row = new string[] { "2", "Product 2", "2000" };
            dataGridView1.Rows.Add(row);
            row = new string[] { "3", "Product 3", "3000" };
            dataGridView1.Rows.Add(row);
            row = new string[] { "4", "Product 4", "4000" };
            dataGridView1.Rows.Add(row);

            dataGridView1.Rows[1].ReadOnly = true;
        }
    }
}

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