DataGridView中，用鼠标代替滚动条的问题
问题的详细描述：
我用DataGridView显示数据库中的数据，但是出现了滚动条（水平和竖直），我想让滚动条消失，用鼠标来替代它的功能。最好鼠标的默认焦点在第一行（注意不是单元格，用一条线显示），鼠标滚动的时候，显示线跟着移动。请问代码怎么写？


[解决办法]

C# code

        public void Form5_MouseWheel(object sender, MouseEventArgs e)        {            int index=dataGridView1.SelectedRows[0].Index;            System.Drawing.Point p = PointToScreen(e.Location);            if (WindowFromPoint(p.X, p.Y) == dataGridView1.Handle.ToInt32())            {                if (e.Delta == 120)                {                    if (index >= 1)                    {                        dataGridView1.Rows[index - 1].Selected = true;                    }                }                else if (e.Delta < 0)                {                    dataGridView1.Rows[index + 1].Selected = true;                }                dataGridView1.Focus();                this.dataGridView1.FirstDisplayedScrollingRowIndex = index;//始终显示选中的行            }        }        private void dataGridView1_MouseEnter(object sender, EventArgs e)        {            this.MouseWheel += new MouseEventHandler(Form5_MouseWheel);        }
[解决办法]
C# code
//Form.designer.cs里面在datagridview的地方加入鼠标滚轮事件this.dataGridView1.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.dataGridView1_MouseWheel);        private void dataGridView1_MouseWheel(object sender, MouseEventArgs e)        {            int rowIndex = this.dataGridView1.CurrentRow.Index;            this.dataGridView1.ClearSelection();            if (e.Delta > 0)            {                if (rowIndex > 0)                {                    this.dataGridView1.CurrentCell = this.dataGridView1.Rows[rowIndex - 1].Cells[0];                    this.dataGridView1.Rows[rowIndex - 1].Selected = true;                }                else                {                    this.dataGridView1.CurrentCell = this.dataGridView1.Rows[rowIndex].Cells[0];                    this.dataGridView1.Rows[rowIndex].Selected = true;                }            }            else            {                if (rowIndex < this.dataGridView1.Rows.Count - 1)                {                    this.dataGridView1.CurrentCell = this.dataGridView1.Rows[rowIndex + 1].Cells[0];                    this.dataGridView1.Rows[rowIndex + 1].Selected = true;                }                else                {                    this.dataGridView1.CurrentCell = this.dataGridView1.Rows[rowIndex].Cells[0];                    this.dataGridView1.Rows[rowIndex].Selected = true;                }            }        }