Windows Forms: Display selected Row from DataGridView to TextBox in C#

Step 1: Click New Project, then select Visual C# on the left, then Windows and then select Windows Forms Application. Name your project "DataGridViewTextBox" and then click OK

Step 2: Design your form as below

Step 3: Create a new dataset, then select category table from Northwind database

You need to add a bindingsource to DataGridView and TextBox control

Step 4: Add code to handle your form as below

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

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

        private void Form1_Load(object sender, EventArgs e)
        {
            // TODO: This line of code loads data into the 'northwindDataSet.Categories' table. You can move, or remove it, as needed.
            this.categoriesTableAdapter.Fill(this.northwindDataSet.Categories);

        }
    }
}

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