C#zedGraph图表，右键点击show point values后，数值会快速的闪

[ymbukn88]

运用zedGraph工具显示图表，运行时，右键点击show point values，相应的数值可以显示，但是在快速的闪动，而不是不动，请问是什么问题呢，代码如下：

private void button7_Click(object sender, EventArgs e)
        {

            zedGraphControl3.GraphPane.Title.Text = "体重柱形图";
            zedGraphControl3.GraphPane.XAxis.Title.Text = "姓名";
            zedGraphControl3.GraphPane.YAxis.Title.Text = "体重";
            double[] y = { 48, 56, 65, 32, 40 };

            string[] str = { "王五", "流倏", "张三", "花花", "如意" };

            zedGraphControl3.GraphPane.XAxis.Type = AxisType.Text;

            zedGraphControl3.GraphPane.XAxis.Scale.TextLabels = str;

            zedGraphControl3.GraphPane.Chart.Border.Color = Color.Gray;

            zedGraphControl3.GraphPane.Chart.Border.Width = 2.0F;

            zedGraphControl3.GraphPane.XAxis.Scale.FontSpec.FontColor = Color.Red;

            BarItem myCurve = zedGraphControl3.GraphPane.AddBar("", null, y, Color.Green);
            

//            splitContainer1.Panel2.Controls.Clear();

//            splitContainer1.Panel2.Controls.Add(zgc);

            zedGraphControl3.Width = this.Width;

            zedGraphControl3.Height = this.Height;

            zedGraphControl3.Dock = DockStyle.Fill;
            zedGraphControl3.AxisChange();
            zedGraphControl3.Refresh();
        }