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How to edit row in a DataView

The DataView provides different views of the data stored in a DataTable. DataView can be used to sort, filter, and search a DataTable , additionally we can add new rows and modify the content in a DataTable. We can create DataView in two ways. Either we can use the DataView Constructor , or we can create a reference to the DefaultView property of the DataTable. Also we can create multiple DataViews for any given DataTable. Using a DataView, you can expose the data in a table with different sort orders, and you can filter the data by row state or based on a filter expression.

We can update the data in a DataView . The following C# source code shows how to update data in a DataView . Create a new C# project and drag a DataGridView and a Button on default Form Form1 , and copy and paste the following C# Source Code on button click event.




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

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

        private void button1_Click(object sender, EventArgs e)
        {
            string connetionString = null;
            SqlConnection connection ;
            SqlCommand command ;
            SqlDataAdapter adapter = new SqlDataAdapter();
            DataSet ds = new DataSet();
            DataView dv ;
            string sql = null;
            connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password";
            sql = "Select * from product";
            connection = new SqlConnection(connetionString);
            try
            {
                connection.Open();
                command = new SqlCommand(sql, connection);
                adapter.SelectCommand = command;
                adapter.Fill(ds, "Update");
                adapter.Dispose();
                command.Dispose();
                connection.Close();

                dv = new DataView(ds.Tables[0], "", "Product_Name", DataViewRowState.CurrentRows);
                int index = dv.Find("PRODUCT5");

                if (index == -1)
                {
                    MessageBox.Show ("Product not found");
                }
                else
                {
                    dv[index]["Product_Name"] = "Product11";
                    MessageBox.Show("Product Updated !");
                }

                dataGridView1.DataSource = dv;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }
    }
}




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