A mettre à la place du InitializeComponent dans votre Form.Designer.cs ! TOUS LES EVENEMENTS SONT A FAIRE (Ex: au clic du bouton)

private void InitializeComponent(){

          this.GrdPdt = new System.Windows.Forms.DataGridView();
          this.BtnNbPdt = new System.Windows.Forms.Button();
          this.BtnNbPn = new System.Windows.Forms.Button();
          this.BtnNb5 = new System.Windows.Forms.Button();
          this.BtnNbCat = new System.Windows.Forms.Button();
          this.LblNbPdt = new System.Windows.Forms.Label();
          this.LblNbPn = new System.Windows.Forms.Label();
          this.LblNb5 = new System.Windows.Forms.Label();
          this.LblNbCat = new System.Windows.Forms.Label();
          this.BtnQuitter = new System.Windows.Forms.Button();
          this.TxtCat = new System.Windows.Forms.TextBox();
          this.label1 = new System.Windows.Forms.Label();
          this.label2 = new System.Windows.Forms.Label();
          this.label3 = new System.Windows.Forms.Label();
          this.label4 = new System.Windows.Forms.Label();
          this.ChkPn = new System.Windows.Forms.CheckBox();
          this.Rdo0 = new System.Windows.Forms.RadioButton();
          this.Rdo2 = new System.Windows.Forms.RadioButton();
          this.Rdo5 = new System.Windows.Forms.RadioButton();
          this.TxtCode = new System.Windows.Forms.TextBox();
          this.TxtDesi = new System.Windows.Forms.TextBox();
          this.TxtPrix = new System.Windows.Forms.TextBox();
          this.TxtCateg = new System.Windows.Forms.TextBox();
          this.BtnAjouter = new System.Windows.Forms.Button();
          ((System.ComponentModel.ISupportInitialize)(this.GrdPdt)).BeginInit();
          this.SuspendLayout();
          // 
          // GrdPdt
          // 
          this.GrdPdt.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
          this.GrdPdt.Location = new System.Drawing.Point(51, 39);
          this.GrdPdt.Name = "GrdPdt";
          this.GrdPdt.Size = new System.Drawing.Size(471, 150);
          this.GrdPdt.TabIndex = 0;
          // 
          // BtnNbPdt
          // 
          this.BtnNbPdt.Location = new System.Drawing.Point(51, 195);
          this.BtnNbPdt.Name = "BtnNbPdt";
          this.BtnNbPdt.Size = new System.Drawing.Size(117, 23);
          this.BtnNbPdt.TabIndex = 1;
          this.BtnNbPdt.Text = "Nombre de produits";
          this.BtnNbPdt.UseVisualStyleBackColor = true;
          // 
          // BtnNbPn
          // 
          this.BtnNbPn.Location = new System.Drawing.Point(51, 224);
          this.BtnNbPn.Name = "BtnNbPn";
          this.BtnNbPn.Size = new System.Drawing.Size(193, 23);
          this.BtnNbPn.TabIndex = 2;
          this.BtnNbPn.Text = "Nombre de produits en production";
          this.BtnNbPn.UseVisualStyleBackColor = true;
          // 
          // BtnNb5
          // 
          this.BtnNb5.Location = new System.Drawing.Point(51, 253);
          this.BtnNb5.Name = "BtnNb5";
          this.BtnNb5.Size = new System.Drawing.Size(210, 23);
          this.BtnNb5.TabIndex = 3;
          this.BtnNb5.Text = "Nombre de produits avec remise de 5%";
          this.BtnNb5.UseVisualStyleBackColor = true;
          // 
          // BtnNbCat
          // 
          this.BtnNbCat.Location = new System.Drawing.Point(51, 282);
          this.BtnNbCat.Name = "BtnNbCat";
          this.BtnNbCat.Size = new System.Drawing.Size(193, 23);
          this.BtnNbCat.TabIndex = 4;
          this.BtnNbCat.Text = "Nombre de produits dans catégorie";
          this.BtnNbCat.UseVisualStyleBackColor = true;
          // 
          // LblNbPdt
          // 
          this.LblNbPdt.AutoSize = true;
          this.LblNbPdt.Location = new System.Drawing.Point(174, 200);
          this.LblNbPdt.Name = "LblNbPdt";
          this.LblNbPdt.Size = new System.Drawing.Size(0, 13);
          this.LblNbPdt.TabIndex = 5;
          // 
          // LblNbPn
          // 
          this.LblNbPn.AutoSize = true;
          this.LblNbPn.Location = new System.Drawing.Point(250, 229);
          this.LblNbPn.Name = "LblNbPn";
          this.LblNbPn.Size = new System.Drawing.Size(0, 13);
          this.LblNbPn.TabIndex = 6;
          // 
          // LblNb5
          // 
          this.LblNb5.AutoSize = true;
          this.LblNb5.Location = new System.Drawing.Point(267, 258);
          this.LblNb5.Name = "LblNb5";
          this.LblNb5.Size = new System.Drawing.Size(0, 13);
          this.LblNb5.TabIndex = 7;
          // 
          // LblNbCat
          // 
          this.LblNbCat.AutoSize = true;
          this.LblNbCat.Location = new System.Drawing.Point(250, 287);
          this.LblNbCat.Name = "LblNbCat";
          this.LblNbCat.Size = new System.Drawing.Size(0, 13);
          this.LblNbCat.TabIndex = 8;
          // 
          // BtnQuitter
          // 
          this.BtnQuitter.Location = new System.Drawing.Point(447, 195);
          this.BtnQuitter.Name = "BtnQuitter";
          this.BtnQuitter.Size = new System.Drawing.Size(75, 23);
          this.BtnQuitter.TabIndex = 9;
          this.BtnQuitter.Text = "Quitter";
          this.BtnQuitter.UseVisualStyleBackColor = true;
          // 
          // TxtCat
          // 
          this.TxtCat.Location = new System.Drawing.Point(10, 284);
          this.TxtCat.Name = "TxtCat";
          this.TxtCat.Size = new System.Drawing.Size(35, 20);
          this.TxtCat.TabIndex = 10;
          // 
          // label1
          // 
          this.label1.AutoSize = true;
          this.label1.Location = new System.Drawing.Point(48, 333);
          this.label1.Name = "label1";
          this.label1.Size = new System.Drawing.Size(35, 13);
          this.label1.TabIndex = 11;
          this.label1.Text = "Code:";
          // 
          // label2
          // 
          this.label2.AutoSize = true;
          this.label2.Location = new System.Drawing.Point(48, 363);
          this.label2.Name = "label2";
          this.label2.Size = new System.Drawing.Size(66, 13);
          this.label2.TabIndex = 12;
          this.label2.Text = "Désignation:";
          // 
          // label3
          // 
          this.label3.AutoSize = true;
          this.label3.Location = new System.Drawing.Point(48, 387);
          this.label3.Name = "label3";
          this.label3.Size = new System.Drawing.Size(27, 13);
          this.label3.TabIndex = 13;
          this.label3.Text = "Prix:";
          // 
          // label4
          // 
          this.label4.AutoSize = true;
          this.label4.Location = new System.Drawing.Point(48, 413);
          this.label4.Name = "label4";
          this.label4.Size = new System.Drawing.Size(55, 13);
          this.label4.TabIndex = 14;
          this.label4.Text = "Catégorie:";
          // 
          // ChkPn
          // 
          this.ChkPn.AutoSize = true;
          this.ChkPn.Location = new System.Drawing.Point(253, 329);
          this.ChkPn.Name = "ChkPn";
          this.ChkPn.Size = new System.Drawing.Size(77, 17);
          this.ChkPn.TabIndex = 15;
          this.ChkPn.Text = "Production";
          this.ChkPn.UseVisualStyleBackColor = true;
          // 
          // Rdo0
          // 
          this.Rdo0.AutoSize = true;
          this.Rdo0.Location = new System.Drawing.Point(253, 359);
          this.Rdo0.Name = "Rdo0";
          this.Rdo0.Size = new System.Drawing.Size(39, 17);
          this.Rdo0.TabIndex = 16;
          this.Rdo0.TabStop = true;
          this.Rdo0.Text = "0%";
          this.Rdo0.UseVisualStyleBackColor = true;
          // 
          // Rdo2
          // 
          this.Rdo2.AutoSize = true;
          this.Rdo2.Location = new System.Drawing.Point(253, 383);
          this.Rdo2.Name = "Rdo2";
          this.Rdo2.Size = new System.Drawing.Size(39, 17);
          this.Rdo2.TabIndex = 17;
          this.Rdo2.TabStop = true;
          this.Rdo2.Text = "2%";
          this.Rdo2.UseVisualStyleBackColor = true;
          // 
          // Rdo5
          // 
          this.Rdo5.AutoSize = true;
          this.Rdo5.Location = new System.Drawing.Point(253, 406);
          this.Rdo5.Name = "Rdo5";
          this.Rdo5.Size = new System.Drawing.Size(39, 17);
          this.Rdo5.TabIndex = 18;
          this.Rdo5.TabStop = true;
          this.Rdo5.Text = "5%";
          this.Rdo5.UseVisualStyleBackColor = true;
          // 
          // TxtCode
          // 
          this.TxtCode.Location = new System.Drawing.Point(89, 330);
          this.TxtCode.Name = "TxtCode";
          this.TxtCode.Size = new System.Drawing.Size(100, 20);
          this.TxtCode.TabIndex = 19;
          // 
          // TxtDesi
          // 
          this.TxtDesi.Location = new System.Drawing.Point(120, 360);
          this.TxtDesi.Name = "TxtDesi";
          this.TxtDesi.Size = new System.Drawing.Size(100, 20);
          this.TxtDesi.TabIndex = 20;
          // 
          // TxtPrix
          // 
          this.TxtPrix.Location = new System.Drawing.Point(81, 384);
          this.TxtPrix.Name = "TxtPrix";
          this.TxtPrix.Size = new System.Drawing.Size(100, 20);
          this.TxtPrix.TabIndex = 21;
          // 
          // TxtCateg
          // 
          this.TxtCateg.Location = new System.Drawing.Point(109, 410);
          this.TxtCateg.Name = "TxtCateg";
          this.TxtCateg.Size = new System.Drawing.Size(100, 20);
          this.TxtCateg.TabIndex = 22;
          // 
          // BtnAjouter
          // 
          this.BtnAjouter.Location = new System.Drawing.Point(308, 406);
          this.BtnAjouter.Name = "BtnAjouter";
          this.BtnAjouter.Size = new System.Drawing.Size(75, 23);
          this.BtnAjouter.TabIndex = 23;
          this.BtnAjouter.Text = "Ajouter";
          this.BtnAjouter.UseVisualStyleBackColor = true;
          // 
          // Form1
          // 
          this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
          this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
          this.ClientSize = new System.Drawing.Size(558, 435);
          this.Controls.Add(this.BtnAjouter);
          this.Controls.Add(this.TxtCateg);
          this.Controls.Add(this.TxtPrix);
          this.Controls.Add(this.TxtDesi);
          this.Controls.Add(this.TxtCode);
          this.Controls.Add(this.Rdo5);
          this.Controls.Add(this.Rdo2);
          this.Controls.Add(this.Rdo0);
          this.Controls.Add(this.ChkPn);
          this.Controls.Add(this.label4);
          this.Controls.Add(this.label3);
          this.Controls.Add(this.label2);
          this.Controls.Add(this.label1);
          this.Controls.Add(this.TxtCat);
          this.Controls.Add(this.BtnQuitter);
          this.Controls.Add(this.LblNbCat);
          this.Controls.Add(this.LblNb5);
          this.Controls.Add(this.LblNbPn);
          this.Controls.Add(this.LblNbPdt);
          this.Controls.Add(this.BtnNbCat);
          this.Controls.Add(this.BtnNb5);
          this.Controls.Add(this.BtnNbPn);
          this.Controls.Add(this.BtnNbPdt);
          this.Controls.Add(this.GrdPdt);
          this.Name = "Form1";
          this.Text = "Nombre de pro";
          this.Load += new System.EventHandler(this.Form1_Load);
          ((System.ComponentModel.ISupportInitialize)(this.GrdPdt)).EndInit();
          this.ResumeLayout(false);
          this.PerformLayout();
      }
      private System.Windows.Forms.DataGridView GrdPdt;
      private System.Windows.Forms.Button BtnNbPdt;
      private System.Windows.Forms.Button BtnNbPn;
      private System.Windows.Forms.Button BtnNb5;
      private System.Windows.Forms.Button BtnNbCat;
      private System.Windows.Forms.Label LblNbPdt;
      private System.Windows.Forms.Label LblNbPn;
      private System.Windows.Forms.Label LblNb5;
      private System.Windows.Forms.Label LblNbCat;
      private System.Windows.Forms.Button BtnQuitter;
      private System.Windows.Forms.TextBox TxtCat;
      private System.Windows.Forms.Label label1;
      private System.Windows.Forms.Label label2;
      private System.Windows.Forms.Label label3;
      private System.Windows.Forms.Label label4;
      private System.Windows.Forms.CheckBox ChkPn;
      private System.Windows.Forms.RadioButton Rdo0;
      private System.Windows.Forms.RadioButton Rdo2;
      private System.Windows.Forms.RadioButton Rdo5;
      private System.Windows.Forms.TextBox TxtCode;
      private System.Windows.Forms.TextBox TxtDesi;
      private System.Windows.Forms.TextBox TxtPrix;
      private System.Windows.Forms.TextBox TxtCateg;
      private System.Windows.Forms.Button BtnAjouter;