图表网格线样式

我正在使用 Visual Studio 2010 中的标准图表库。 该图表工作正常，但我无法更改轴网格线样式。 这些是已在 Form1.Designers.cs 中设置的属性

chartArea3.Name = "ChartArea1";
        this.chart1.ChartAreas.Add(chartArea3);
        legend3.Name = "Legend1";
        this.chart1.Legends.Add(legend3);
        this.chart1.Location = new System.Drawing.Point(12, 68);
        this.chart1.Name = "chart1";
        series5.ChartArea = "ChartArea1";
        series5.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
        series5.Color = System.Drawing.Color.Red;
        series5.Legend = "Legend1";
        series5.Name = "Temp";
        series6.ChartArea = "ChartArea1";
        series6.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
        series6.Color = System.Drawing.Color.Blue;
        series6.Legend = "Legend1";
        series6.Name = "Umid";
        this.chart1.Series.Add(series5);
        this.chart1.Series.Add(series6);
        this.chart1.Size = new System.Drawing.Size(647, 182);
        this.chart1.TabIndex = 8;
        this.chart1.Text = "chart1";
        this.chart1.ChartAreas[0].AxisY.Interval=5;

我想要轴网格类型的点或破折号。我尝试过：

this.chart1.ChartAreas[0].AxisX.LineDashStyle.??????

但我不知道如何分配属性和/或上面的部分代码行是否正确。

最后我猜对了：

 this.chart1.ChartAreas[0].AxisX.MajorGrid.LineDashStyle = System.Windows.Forms.DataVisualization.Charting.ChartDashStyle.DashDotDot;
        this.chart1.ChartAreas[0].AxisY.MajorGrid.LineDashStyle = System.Windows.Forms.DataVisualization.Charting.ChartDashStyle.DashDotDot;

这是有效的，可以访问网格轴的线条样式。

 this.chart1.ChartAreas[0].AxisX.MajorGrid.LineDashStyle = System.Windows.Forms.DataVisualization.Charting.ChartDashStyle.availableStileSelectionHere;