Se ti mando questo codice "namespace ImporterIxCe
{
    partial class MonitorConservation
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(MonitorConservation));
            dataGridView1 = new DataGridView();
            flowLayoutPanel3 = new FlowLayoutPanel();
            btnAnnulla = new Button();
            button1 = new Button();
            button2 = new Button();
            flowLayoutPanel1 = new FlowLayoutPanel();
            button4 = new Button();
            ((System.ComponentModel.ISupportInitialize)dataGridView1).BeginInit();
            flowLayoutPanel3.SuspendLayout();
            flowLayoutPanel1.SuspendLayout();
            SuspendLayout();
            // 
            // dataGridView1
            // 
            dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            dataGridView1.Location = new Point(3, 56);
            dataGridView1.Name = "dataGridView1";
            dataGridView1.RowHeadersWidth = 51;
            dataGridView1.Size = new Size(1365, 547);
            dataGridView1.TabIndex = 0;
            // 
            // flowLayoutPanel3
            // 
            flowLayoutPanel3.AccessibleRole = AccessibleRole.None;
            flowLayoutPanel3.Controls.Add(btnAnnulla);
            flowLayoutPanel3.Controls.Add(button1);
            flowLayoutPanel3.FlowDirection = FlowDirection.RightToLeft;
            flowLayoutPanel3.Location = new Point(155, 609);
            flowLayoutPanel3.Name = "flowLayoutPanel3";
            flowLayoutPanel3.Size = new Size(1213, 47);
            flowLayoutPanel3.TabIndex = 19;
            // 
            // btnAnnulla
            // 
            btnAnnulla.Image = (Image)resources.GetObject("btnAnnulla.Image");
            btnAnnulla.Location = new Point(1095, 3);
            btnAnnulla.Name = "btnAnnulla";
            btnAnnulla.Size = new Size(115, 39);
            btnAnnulla.TabIndex = 1;
            btnAnnulla.Text = "Indietro";
            btnAnnulla.TextAlign = ContentAlignment.MiddleRight;
            btnAnnulla.TextImageRelation = TextImageRelation.TextBeforeImage;
            btnAnnulla.UseVisualStyleBackColor = true;
            btnAnnulla.Click += btnAnnulla_Click;
            // 
            // button1
            // 
            button1.Image = (Image)resources.GetObject("button1.Image");
            button1.Location = new Point(974, 3);
            button1.Name = "button1";
            button1.Size = new Size(115, 39);
            button1.TabIndex = 2;
            button1.Text = "Ricarica";
            button1.TextAlign = ContentAlignment.MiddleRight;
            button1.TextImageRelation = TextImageRelation.TextBeforeImage;
            button1.UseVisualStyleBackColor = true;
            button1.Click += button1_Click;
            // 
            // button2
            // 
            button2.Image = (Image)resources.GetObject("button2.Image");
            button2.Location = new Point(23, 612);
            button2.Name = "button2";
            button2.Size = new Size(115, 39);
            button2.TabIndex = 3;
            button2.Text = "Elimina Pacchetto";
            button2.TextAlign = ContentAlignment.MiddleRight;
            button2.TextImageRelation = TextImageRelation.TextBeforeImage;
            button2.UseVisualStyleBackColor = true;
            button2.Click += button2_Click;
            // 
            // flowLayoutPanel1
            // 
            flowLayoutPanel1.AccessibleRole = AccessibleRole.None;
            flowLayoutPanel1.Controls.Add(button4);
            flowLayoutPanel1.Location = new Point(3, 3);
            flowLayoutPanel1.Name = "flowLayoutPanel1";
            flowLayoutPanel1.Size = new Size(1360, 47);
            flowLayoutPanel1.TabIndex = 20;
            // 
            // button4
            // 
            button4.Image = (Image)resources.GetObject("button4.Image");
            button4.Location = new Point(3, 3);
            button4.Name = "button4";
            button4.Size = new Size(199, 39);
            button4.TabIndex = 2;
            button4.Text = "Manda tutti i pacchetti possibili in preservation";
            button4.TextAlign = ContentAlignment.MiddleRight;
            button4.TextImageRelation = TextImageRelation.TextBeforeImage;
            button4.UseVisualStyleBackColor = true;
            button4.Click += button4_Click;
            // 
            // MonitorConservation
            // 
            AutoScaleDimensions = new SizeF(7F, 15F);
            AutoScaleMode = AutoScaleMode.Font;
            ClientSize = new Size(1375, 661);
            Controls.Add(flowLayoutPanel1);
            Controls.Add(flowLayoutPanel3);
            Controls.Add(dataGridView1);
            Controls.Add(button2);
            FormBorderStyle = FormBorderStyle.FixedSingle;
            Icon = (Icon)resources.GetObject("$this.Icon");
            MaximizeBox = false;
            Name = "MonitorConservation";
            StartPosition = FormStartPosition.CenterScreen;
            Text = "MonitorConservation";
            ((System.ComponentModel.ISupportInitialize)dataGridView1).EndInit();
            flowLayoutPanel3.ResumeLayout(false);
            flowLayoutPanel1.ResumeLayout(false);
            ResumeLayout(false);
        }

        #endregion

        private DataGridView dataGridView1;
        private FlowLayoutPanel flowLayoutPanel3;
        private Button btnAnnulla;
        private Button button1;
        private Button button2;
        private FlowLayoutPanel flowLayoutPanel1;
        private Button button4;
    }
}"

Riesci ad inserirmi una barra di ricerca per il dataGridView?