title: "The name 'GRID' does not exist in the current context" error
body: <ol>
  <li>List item</li>
  </ol>
  
  <p>Hey guys recently have been doing my first ever windows forms/c# application and i cannot get rid of this error. I've dragged and dropped data grid view into my form and renamed it GRID and this problem persists. Here is the code:</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Linq;
  using System.Text;
  using System.IO; //added
  using System.Windows.Forms;
  using System.Runtime.Serialization.Formatters.Binary; //added
  using System.Runtime.Serialization; //added
  namespace testowa // this my name of project
  {
  
  public partial class Form1 : Form
  {
  public Form1()
  {
  InitializeComponent();
  }
  
  private void InitializeComponent()
  {
      throw new NotImplementedException();
  }
  
  
  
  [Serializable] // It allow our class to be saved in file
  public class data // Our class for data
  {
  public string name;
  public string surname;
  public string city;
  public string number;
  
  }
  
  
  
  private void SaveToolStripMenuItem_Click(object sender, EventArgs e)
  {
  GRID.EndEdit(); 
  SaveFileDialog saveFileDialog1 = new SaveFileDialog(); //Creating a file save dialog 
  
  saveFileDialog1.RestoreDirectory = true;
  //read and filter the raw data
  if (saveFileDialog1.ShowDialog() == DialogResult.OK)
  {
  BinaryFormatter formatter = new BinaryFormatter();
  FileStream output = new FileStream(saveFileDialog1.FileName, FileMode.OpenOrCreate, FileAccess.Write);
  ;
  int n = GRID.RowCount; 
  data[] Person = new data[n - 1]; //We have as many records as many rows, rows are added automaticly so we have always one row more than we need, so n is a number of rows -1 empty row
  for (int i = 0; i &lt; n - 1; i++) 
  {
  
  Person[i] = new data();
  //GRID has two numbers in"[]" first numer is an index of column, second is a an idnex of row', indexing always starts from 0'
  Person[i].name = GRID[0, i].Value.ToString();
  Person[i].surname = GRID[1, i].Value.ToString();
  Person[i].city = GRID[2, i].Value.ToString();
  Person[i].number = GRID[3, i].Value.ToString();
  
  }
  
  formatter.Serialize(output, Person);
  
  output.Close();
  }
  
  }
  
  private void OpenToolStripMenuItem_Click(object sender, EventArgs e) // Reading a File and adding data to GRID
  {
  openFileDialog1 = new OpenFileDialog();
  if (openFileDialog1.ShowDialog() == DialogResult.OK)
  {
  BinaryFormatter reader = new BinaryFormatter();
  FileStream input = new FileStream(openFileDialog1.FileName, FileMode.Open, FileAccess.Read);
  data[] Person = (data[])reader.Deserialize(input);
  GRID.Rows.Clear(); 
  for (int i = 0; i &lt; Person.Length; i++)
  {
  GRID.Rows.Add();
  GRID[0, i].Value = Person[i].name;
  GRID[1, i].Value = Person[i].surname;
  GRID[2, i].Value = Person[i].city;
  GRID[3, i].Value = Person[i].number;
  
  }
  
  }
  }
  
  
  
  private void CloseToolStripMenuItem_Click(object sender, EventArgs e)
  {
  Close(); // closing an app
  }
  
  
  public OpenFileDialog openFileDialog1 { get; set; }
  }
  }
  </code></pre>
  
  <p>What should i do? Thanks.</p>
  
  <p>form1.designer</p>
  
  <pre><code> namespace WindowsFormsApplication7
      {
          partial class Form1
          {
              /// &lt;summary&gt;
              /// Required designer variable.
              /// &lt;/summary&gt;
              private System.ComponentModel.IContainer components = null;
  
              /// &lt;summary&gt;
              /// Clean up any resources being used.
              /// &lt;/summary&gt;
              /// &lt;param name="disposing"&gt;true if managed resources should be disposed; otherwise, false.&lt;/param&gt;
              protected override void Dispose(bool disposing)
              {
                  if (disposing &amp;&amp; (components != null))
                  {
                      components.Dispose();
                  }
                  base.Dispose(disposing);
              }
  
              #region Windows Form Designer generated code
  
              /// &lt;summary&gt;
              /// Required method for Designer support - do not modify
              /// the contents of this method with the code editor.
              /// &lt;/summary&gt;
              private void InitializeComponent()
              {
                  this.menuStrip1 = new System.Windows.Forms.MenuStrip();
                  this.fileToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
                  this.saveToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
                  this.openToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
                  this.closeToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
                  this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
                  this.GRID = new System.Windows.Forms.DataGridView();
                  this.Column1 = new System.Windows.Forms.DataGridViewTextBoxColumn();
                  this.Column2 = new System.Windows.Forms.DataGridViewTextBoxColumn();
                  this.Column3 = new System.Windows.Forms.DataGridViewTextBoxColumn();
                  this.Column4 = new System.Windows.Forms.DataGridViewTextBoxColumn();
                  this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
                  this.menuStrip1.SuspendLayout();
                  ((System.ComponentModel.ISupportInitialize)(this.GRID)).BeginInit();
                  this.SuspendLayout();
                  // 
                  // menuStrip1
                  // 
                  this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
                  this.fileToolStripMenuItem});
                  this.menuStrip1.Location = new System.Drawing.Point(0, 0);
                  this.menuStrip1.Name = "menuStrip1";
                  this.menuStrip1.Size = new System.Drawing.Size(651, 24);
                  this.menuStrip1.TabIndex = 0;
                  this.menuStrip1.Text = "menuStrip1";
                  // 
                  // fileToolStripMenuItem
                  // 
                  this.fileToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
                  this.saveToolStripMenuItem,
                  this.openToolStripMenuItem,
                  this.closeToolStripMenuItem});
                  this.fileToolStripMenuItem.Name = "fileToolStripMenuItem";
                  this.fileToolStripMenuItem.Size = new System.Drawing.Size(37, 20);
                  this.fileToolStripMenuItem.Text = "File";
                  // 
                  // saveToolStripMenuItem
                  // 
                  this.saveToolStripMenuItem.Name = "saveToolStripMenuItem";
                  this.saveToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
                  this.saveToolStripMenuItem.Text = "Save";
                  this.saveToolStripMenuItem.Click += new System.EventHandler(this.saveToolStripMenuItem_Click);
                  // 
                  // openToolStripMenuItem
                  // 
                  this.openToolStripMenuItem.Name = "openToolStripMenuItem";
                  this.openToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
                  this.openToolStripMenuItem.Text = "Open";
                  this.openToolStripMenuItem.Click += new System.EventHandler(this.openToolStripMenuItem_Click);
                  // 
                  // closeToolStripMenuItem
                  // 
                  this.closeToolStripMenuItem.Name = "closeToolStripMenuItem";
                  this.closeToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
                  this.closeToolStripMenuItem.Text = "Close";
                  this.closeToolStripMenuItem.Click += new System.EventHandler(this.closeToolStripMenuItem_Click);
                  // 
                  // openFileDialog1
                  // 
                  this.openFileDialog1.FileName = "openFileDialog1";
                  this.openFileDialog1.FileOk += new System.ComponentModel.CancelEventHandler(this.openFileDialog1_FileOk);
                  // 
                  // GRID
                  // 
                  this.GRID.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
                  this.GRID.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
                  this.Column1,
                  this.Column2,
                  this.Column3,
                  this.Column4});
                  this.GRID.Location = new System.Drawing.Point(13, 28);
                  this.GRID.Name = "GRID";
                  this.GRID.Size = new System.Drawing.Size(451, 232);
                  this.GRID.TabIndex = 1;
                  this.GRID.CellContentClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dataGridView1_CellContentClick);
                  // 
                  // Column1
                  // 
                  this.Column1.HeaderText = "name";
                  this.Column1.Name = "Column1";
                  // 
                  // Column2
                  // 
                  this.Column2.HeaderText = "last name";
                  this.Column2.Name = "Column2";
                  // 
                  // Column3
                  // 
                  this.Column3.HeaderText = "City";
                  this.Column3.Name = "Column3";
                  // 
                  // Column4
                  // 
                  this.Column4.HeaderText = "Phone #";
                  this.Column4.Name = "Column4";
                  // 
                  // Form1
                  // 
                  this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
                  this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
                  this.ClientSize = new System.Drawing.Size(651, 262);
                  this.Controls.Add(this.GRID);
                  this.Controls.Add(this.menuStrip1);
                  this.MainMenuStrip = this.menuStrip1;
                  this.Name = "Form1";
                  this.Text = "Form1";
                  this.menuStrip1.ResumeLayout(false);
                  this.menuStrip1.PerformLayout();
                  ((System.ComponentModel.ISupportInitialize)(this.GRID)).EndInit();
                  this.ResumeLayout(false);
                  this.PerformLayout();
  
              }
  
              #endregion
  
              private System.Windows.Forms.MenuStrip menuStrip1;
              private System.Windows.Forms.ToolStripMenuItem fileToolStripMenuItem;
              private System.Windows.Forms.ToolStripMenuItem saveToolStripMenuItem;
              private System.Windows.Forms.ToolStripMenuItem openToolStripMenuItem;
              private System.Windows.Forms.ToolStripMenuItem closeToolStripMenuItem;
              private System.Windows.Forms.OpenFileDialog openFileDialog1;
              private System.Windows.Forms.DataGridView GRID;
              private System.Windows.Forms.DataGridViewTextBoxColumn Column1;
              private System.Windows.Forms.DataGridViewTextBoxColumn Column2;
              private System.Windows.Forms.DataGridViewTextBoxColumn Column3;
              private System.Windows.Forms.DataGridViewTextBoxColumn Column4;
              private System.Windows.Forms.SaveFileDialog saveFileDialog1;
          }
      }
  </code></pre>