Custom Header Cells : DataGridView « GUI Windows Forms « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. GUI Windows Forms
3. DataGridView

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


   class Form1 : Form
   {
      public Form1()
      {
         InitializeComponent();
      }

      private void OnFormLoad(object sender, EventArgs e)
      {
         m_Grid.ColumnCount = 5;
         m_Grid.Rows.Add(5);
      }

      private void OnCellPainting(object sender, DataGridViewCellPaintingEventArgs e)
      {
         if (e.RowIndex == -1) 
         {
               e.Graphics.FillRectangle(Brushes.Aqua, e.CellBounds); 
               e.Handled = true;
         }
         if (e.ColumnIndex == -1)
         {
         }
      }
      private void InitializeComponent()
      {
         this.m_Grid = new System.Windows.Forms.DataGridView();
         ((System.ComponentModel.ISupportInitialize)(this.m_Grid)).BeginInit();
         this.SuspendLayout();
         // 
         this.m_Grid.Dock = System.Windows.Forms.DockStyle.Fill;
         this.m_Grid.Location = new System.Drawing.Point(0, 0);
         this.m_Grid.Name = "m_Grid";
         this.m_Grid.Size = new System.Drawing.Size(642, 347);
         this.m_Grid.TabIndex = 0;
         this.m_Grid.Text = "dataGridView1";
         this.m_Grid.CellPainting += new System.Windows.Forms.DataGridViewCellPaintingEventHandler(this.OnCellPainting);
         // 
         // Form1
         // 
         this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
         this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
         this.ClientSize = new System.Drawing.Size(642, 347);
         this.Controls.Add(this.m_Grid);
         this.Name = "Form1";
         this.Text = "Form1";
         this.Load += new System.EventHandler(this.OnFormLoad);
         ((System.ComponentModel.ISupportInitialize)(this.m_Grid)).EndInit();
         this.ResumeLayout(false);

      }


      private System.Windows.Forms.DataGridView m_Grid;

      [STAThread]
      static void Main()
      {
         Application.EnableVisualStyles();
         Application.Run(new Form1());
      }
   }