C# ShieldUI将不接受更新的属性

我有以下代码：

protected void SetChartToItem(Item item)
    {
        ShieldChart1 = new ShieldChart();
        ShieldChart1.Width = Unit.Percentage(100);
        ShieldChart1.Height = Unit.Pixel(400);
        ShieldChart1.CssClass = "chart";
        ShieldChart1.PrimaryHeader.Text = item.name;
        ShieldChart1.TooltipSettings.AxisMarkers.Enabled = true;
        ShieldChart1.TooltipSettings.AxisMarkers.Mode = ChartXYMode.XY;
        ShieldChart1.TooltipSettings.AxisMarkers.Width = new Unit(1);
        ShieldChart1.TooltipSettings.AxisMarkers.ZIndex = 3;
        ChartAxisX axisX = new ChartAxisX();
        axisX.Title.Text = "Times";
        ShieldChart1.Axes.Add(axisX);
        ChartAxisY axisY = new ChartAxisY();
        axisY.Title.Text = "Prices";
        ShieldChart1.Axes.Add(axisY);
        ShieldChart1.Axes.SetDirty();
}

<shield:ShieldChart ID="ShieldChart1" Width="700px" Height="380px" runat="server" OnTakeDataSource="ShieldChart1_TakeDataSource" CssClass="chart">
        <PrimaryHeader Text="TestHeader"></PrimaryHeader>
        <ExportOptions AllowExportToImage="true" AllowPrint="false" />
        <Axes>
            <shield:ChartAxisX>
                <Title Text="Time"></Title>
            </shield:ChartAxisX>
            <shield:ChartAxisY>
                <Title Text="Price"></Title>
            </shield:ChartAxisY>
        </Axes>
        <DataSeries>
            <shield:ChartLineSeries DataFieldY="Volume" DataFieldX="Timer" CollectionAlias="Volume">
                <Settings EnablePointSelection="true">
                    <PointMark>
                        <ActiveSettings>
                            <PointSelectedState DrawWidth="4" DrawRadius="4" />
                        </ActiveSettings>
                    </PointMark>
                </Settings>
            </shield:ChartLineSeries>
            <shield:ChartLineSeries DataFieldY="Price" DataFieldX="Timer" CollectionAlias="Price">
                <Settings EnablePointSelection="true">
                    <PointMark>
                        <ActiveSettings>
                            <PointSelectedState DrawWidth="4" DrawRadius="4" />
                        </ActiveSettings>
                    </PointMark>
                </Settings>
            </shield:ChartLineSeries>
        </DataSeries>
    </shield:ShieldChart>

以及以下代码：

protected void SetChartToItem(Item item)
    {
        ShieldChart1 = new ShieldChart();
        ShieldChart1.Width = Unit.Percentage(100);
        ShieldChart1.Height = Unit.Pixel(400);
        ShieldChart1.CssClass = "chart";
        ShieldChart1.PrimaryHeader.Text = item.name;
        ShieldChart1.TooltipSettings.AxisMarkers.Enabled = true;
        ShieldChart1.TooltipSettings.AxisMarkers.Mode = ChartXYMode.XY;
        ShieldChart1.TooltipSettings.AxisMarkers.Width = new Unit(1);
        ShieldChart1.TooltipSettings.AxisMarkers.ZIndex = 3;
        ChartAxisX axisX = new ChartAxisX();
        axisX.Title.Text = "Times";
        ShieldChart1.Axes.Add(axisX);
        ChartAxisY axisY = new ChartAxisY();
        axisY.Title.Text = "Prices";
        ShieldChart1.Axes.Add(axisY);
        ShieldChart1.Axes.SetDirty();
}

<shield:ShieldChart ID="ShieldChart1" Width="700px" Height="380px" runat="server" OnTakeDataSource="ShieldChart1_TakeDataSource" CssClass="chart">
        <PrimaryHeader Text="TestHeader"></PrimaryHeader>
        <ExportOptions AllowExportToImage="true" AllowPrint="false" />
        <Axes>
            <shield:ChartAxisX>
                <Title Text="Time"></Title>
            </shield:ChartAxisX>
            <shield:ChartAxisY>
                <Title Text="Price"></Title>
            </shield:ChartAxisY>
        </Axes>
        <DataSeries>
            <shield:ChartLineSeries DataFieldY="Volume" DataFieldX="Timer" CollectionAlias="Volume">
                <Settings EnablePointSelection="true">
                    <PointMark>
                        <ActiveSettings>
                            <PointSelectedState DrawWidth="4" DrawRadius="4" />
                        </ActiveSettings>
                    </PointMark>
                </Settings>
            </shield:ChartLineSeries>
            <shield:ChartLineSeries DataFieldY="Price" DataFieldX="Timer" CollectionAlias="Price">
                <Settings EnablePointSelection="true">
                    <PointMark>
                        <ActiveSettings>
                            <PointSelectedState DrawWidth="4" DrawRadius="4" />
                        </ActiveSettings>
                    </PointMark>
                </Settings>
            </shield:ChartLineSeries>
        </DataSeries>
    </shield:ShieldChart>

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当我调用SetChartToItem时，当我看着它一步一步地运行时，它看起来是有效的，但是当页面呈现时，实际的ShieldChart没有变化。当我删除行ShieldChart1=new ShieldChart（）时，可能会有帮助的更多信息；然后整个屏蔽图就会消失。

我相信有两种方法可以尝试解决这个问题。 一种方法是重新创建图表，如本示例所示： 您可以签出asp.net选项卡

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另一种选择是在托管图表的嵌套面板中重新创建控件集合（并在此之前清除它）。然后，在特定事件上，可以重新创建图表，清除容器的控件集合并添加新实例

我花了3个月的时间，但我发现了问题所在。我让一些图表在“Page_Load”函数中自行构建。解决这个问题的方法是确保只有当页面是回发页面时，每个人都完成了操作，这不包括在我上面的代码中，但为我解决了这个问题