datagridview使用tooltip控件

datagridview使用tooltip控件显示单元格内容且不闪

之前把显示tooltip显示的事件写在GrvMessage_CellMouseMove里面导致一直在闪后改在GrvMessage_CellMouseEnter里就不闪了

 

private int cellColumnIndex = -1, cellRowIndex = -1;

        public ShowMassage()
        {
            InitializeComponent();
            this.GrvMessage.ShowCellToolTips = false;
            this.toolTip.AutomaticDelay = 0;
            this.toolTip.OwnerDraw = true;
            this.toolTip.ShowAlways = true;
            this.toolTip.ToolTipTitle = " ";
            this.toolTip.UseAnimation = true;
            this.toolTip.UseFading = true;
        }

 

        /// <summary>
        /// 鼠标移开是隐藏tooltip
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void GrvMessage_CellMouseLeave(object sender, DataGridViewCellEventArgs e)
        {
            this.toolTip.Hide(this.GrvMessage);
        }

       
        /// <summary>
        /// 重绘tooltip的样式
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void toolTip_Draw_1(object sender, DrawToolTipEventArgs e)
        {
            e.Graphics.FillRectangle(Brushes.AliceBlue, e.Bounds);
            e.Graphics.DrawRectangle(Pens.Chocolate, new Rectangle(0, 0, e.Bounds.Width - 1, e.Bounds.Height - 1));
            e.Graphics.DrawString(this.toolTip.ToolTipTitle + e.ToolTipText, e.Font, Brushes.Red, e.Bounds);
        }

 

        /// <summary>
        /// 鼠标移动到datagridview的单元格内显示数据
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void GrvMessage_CellMouseEnter(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex < 0 || e.ColumnIndex < 0)
            {
                return;
            }

            this.toolTip.Hide(this.GrvMessage);
            this.cellColumnIndex = e.ColumnIndex;
            this.cellRowIndex = e.RowIndex;

            if (this.cellColumnIndex >= 0 && this.cellRowIndex >= 0)
            {
                Point mousePos = PointToClient(MousePosition);
                string tip =  this.GrvMessage[this.cellColumnIndex, this.cellRowIndex].Value.ToString();
                this.toolTip.Show(tip, this.GrvMessage, mousePos);
            }
        }

 

 

 

for (int i = 0; i < this.dataGridView1.Rows.Count; i++)
{
if (this.dataGridView1[0, i].Value != null)
{
this.dataGridView1[0, i].ToolTipText = this.dataGridView1[0, i].Value.ToString();
}
}