如何防止图表Axis上的日期自动生成

Question

我有一个根据所选时间范围构建图表的功能。 onClick函数确定存储过程和数据源参数，使得DataBind（）和调用showChartSum（）函数 Stored procidure output in case of week range 需要将d_date设置为AxisX，将其他值设置为AxisY 代码：

public void showChartSum()
{
    DataTable dt_data;
    DataView dv_data;
    string error_message;
    int  range_id;
    chart_sum.Visible = true;
    chart_avg.Visible = false;

    range_id = int.Parse(rbl_display02.SelectedValue);
    dv_data = (DataView)sds_report.Select(new DataSourceSelectArguments());
    dt_data = dv_data.ToTable("DTData", false, "d_date", "tip", "deposit", "compensation", "salary");
    if (dt_data.Rows.Count > 0)
    {
        dt_data = validateMaxChartInput(dt_data);
        chart_sum.DataSource = dt_data;
        chart_sum.Series["series_tip"].XValueMember = "d_date";
        chart_sum.Series["series_tip"].YValueMembers = "tip";
        chart_sum.Series["series_deposit"].XValueMember = "d_date";
        chart_sum.Series["series_deposit"].YValueMembers = "deposit";
        chart_sum.Series["series_compensation"].XValueMember = "d_date";
        chart_sum.Series["series_compensation"].YValueMembers = "compensation";
        chart_sum.Series["series_compensation"].Color = Color.Red;
        chart_sum.Series["series_salary"].XValueMember = "d_date";
        chart_sum.Series["series_salary"].YValueMembers = "salary";
        chart_sum.Series["series_salary"].Color = Color.SaddleBrown;
        //chart_sum.ChartAreas[0].AxisX.Interval = 1;
        switch (range_id)
        {
            case 1:
                //chart_sum.ChartAreas[0].AxisX.LabelStyle.Format = "dd/M/yyyy";
                chart_sum.ChartAreas[0].AxisY.Interval = 500;
                break;
            case 2:
                //chart_sum.ChartAreas[0].AxisX.LabelStyle.Format = "M/yyyy";
                chart_sum.ChartAreas[0].AxisY.Interval = 2000;
                break;
            case 3:
                //chart_sum.ChartAreas[0].AxisX.LabelStyle.Format = "yyyy";
                chart_sum.ChartAreas[0].AxisY.Interval = 4000;
                break;
        }
        chart_sum.ChartAreas[0].AxisX.LabelStyle.Angle = 90;
        chart_sum.DataBind();
    }
    else
    {
        error_message = "הנתונים עבור הטווח הנבחר לא קיימים במערכת";
        this.Page.Form.Controls.Add(fn.createCustomMessage(error_message));
        pnl_chart.Visible = false;
    }

}

日期值不是基于数据源，而是根据指定的间隔自动生成。 Chart image 当我将时间间隔评为TaW的sagested时，我会在一周的情况下得到以下输出（除了前导和结束标签之外的罚款） 在月份的情况下，标签以两周的间隔产生 请告知如何在数据源中显示的图表AxisX上显示日期，而不是自动生成的值。