C# Telerik RadChart“；输入字符串的格式不正确"；

我得到以下例外情况：

DataBind（）行上的“输入字符串格式不正确”

我相信正在发生的事情是，投票是用数字/整数创建的，Telerik很聪明，把它们当作整数而不是字符串

有没有一种方法可以告诉telerik RadChart将所有内容都当作字符串处理，或者根据每个条目对内容进行格式化

这两个人遇到了类似的问题,

cs

ascx

谢谢，

Telerik support提出了以下解决方案

…将处理程序附加到数据绑定和BeforeLayout事件，并在第一个操作中将sentinel符号前置到所有值，在第二个操作中删除sentinel符号

 ...
 this.trcResults.DataBinding += this.trcResults_DataBinding;
 this.trcResults.BeforeLayout += this.trcResults_BeforeLayout;
 this.trcResults.DataSource = pcl;
 this.trcResults.DataBind();
}

void trcResults_DataBinding(object sender, EventArgs e)
{
 var senderChart = (RadChart)sender;
 var pcl = senderChart.DataSource as IEnumerable<PollContainer>;

 foreach (var pollContainer in pcl)
 {
  // prepend a sentinel symbol
  pollContainer.AnswerText = "x" + pollContainer.AnswerText;
 }
}


void trcResults_BeforeLayout(object sender, EventArgs e)
{
 foreach (var axisItem in this.trcResults.PlotArea.XAxis.Items)
 {
  // remove the sentinel symbol
  axisItem.TextBlock.Text = axisItem.TextBlock.Text.Remove(0, 1);
 }
}

。。。
this.trcResults.DataBinding+=this.trcResults\u DataBinding；
this.trcResults.BeforeLayout+=this.trcResults\u BeforeLayout；
this.trcResults.DataSource=pcl；
this.trcResults.DataBind（）；
}
void trcResults_数据绑定（对象发送方，事件参数e）
{
var senderChart=（RadChart）发送方；
var pcl=senderChart.DataSource作为IEnumerable；
foreach（pcl中的容器）
{
//在哨兵符号前面加上前缀
pollContainer.AnswerText=“x”+pollContainer.AnswerText；
}
}
布局前的void trcResults_（对象发送方、事件参数）
{
foreach（此.trcResults.PlotArea.XAxis.Items中的var axisItem）
{
//移除哨兵符号
axisItem.TextBlock.Text=axisItem.TextBlock.Text.Remove（0,1）；
}
}

<telerik:RadChart ID="trcResults" runat="server"
        ChartTitle-Visible="false"
        Legend-Visible="false"
        SeriesOrientation="Horizontal"
        Height="160px"
        Width="240px" >
        <Series>
            <telerik:ChartSeries DataYColumn="Votes"
                DefaultLabelValue="#%">
                <Appearance FillStyle-FillType="Solid" 
                    FillStyle-MainColor="#660066" 
                    Border-Visible="false"
                    TextAppearance-TextProperties-Font="Arial" >
                    <FillStyle FillType="Solid" MainColor="102, 0, 102">
                    </FillStyle>
                    <TextAppearance TextProperties-Font="Arial, 9pt">
                    </TextAppearance>
                    <Border Visible="False" />
                </Appearance>
            </telerik:ChartSeries>
        </Series>
        <Appearance Border-Visible="False" FillStyle-FillType="Solid" 
            FillStyle-MainColor="Transparent" Dimensions-AutoSize="false" 
            Dimensions-Width="220px" Dimensions-Height="160px" >
            <FillStyle MainColor="Transparent">
            </FillStyle>
            <Border Visible="False" />
        </Appearance>
        <PlotArea>
            <YAxis2>
                <AxisLabel>
                    <Appearance RotationAngle="0">
                    </Appearance>
                </AxisLabel>
            </YAxis2>
            <Appearance FillStyle-FillType="Solid" FillStyle-MainColor="Transparent" 
                Border-Visible="False" >
                <FillStyle FillType="Solid" MainColor="Transparent">
                </FillStyle>
                <Border Visible="False" />
            </Appearance>
            <XAxis DataLabelsColumn="AnswerText" IsZeroBased="False">
                <Appearance MajorTick-Color="#333333"
                    TextAppearance-TextProperties-Color="#333333"
                    TextAppearance-TextProperties-Font="Arial" >
                    <TextAppearance TextProperties-Color="51, 51, 51" 
                        TextProperties-Font="Arial, 8pt">
                    </TextAppearance>
                </Appearance>
                <AxisLabel>
                    <Appearance RotationAngle="270">
                    </Appearance>
                </AxisLabel>
                <Items>
                    <telerik:ChartAxisItem>
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                    <telerik:ChartAxisItem Value="1">
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                    <telerik:ChartAxisItem Value="2">
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                    <telerik:ChartAxisItem Value="3">
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                    <telerik:ChartAxisItem Value="4">
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                    <telerik:ChartAxisItem Value="5">
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                    <telerik:ChartAxisItem Value="6">
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                    <telerik:ChartAxisItem Value="7">
                        <TextBlock>
                            <Appearance TextProperties-Font="Arial, 8.25pt">
                            </Appearance>
                        </TextBlock>
                    </telerik:ChartAxisItem>
                </Items>
            </XAxis>
            <YAxis>
                <Appearance Visible="false" />
                <AxisLabel>
                    <Appearance RotationAngle="0">
                    </Appearance>
                </AxisLabel>
            </YAxis>
        </PlotArea>
        <ChartTitle Visible="False">
            <Appearance Visible="False">
            </Appearance>
        </ChartTitle>
        <Legend Visible="False">
            <Appearance Visible="False">
            </Appearance>
        </Legend>
    </telerik:RadChart>

 ...
 this.trcResults.DataBinding += this.trcResults_DataBinding;
 this.trcResults.BeforeLayout += this.trcResults_BeforeLayout;
 this.trcResults.DataSource = pcl;
 this.trcResults.DataBind();
}

void trcResults_DataBinding(object sender, EventArgs e)
{
 var senderChart = (RadChart)sender;
 var pcl = senderChart.DataSource as IEnumerable<PollContainer>;

 foreach (var pollContainer in pcl)
 {
  // prepend a sentinel symbol
  pollContainer.AnswerText = "x" + pollContainer.AnswerText;
 }
}


void trcResults_BeforeLayout(object sender, EventArgs e)
{
 foreach (var axisItem in this.trcResults.PlotArea.XAxis.Items)
 {
  // remove the sentinel symbol
  axisItem.TextBlock.Text = axisItem.TextBlock.Text.Remove(0, 1);
 }
}