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asp.net pie chart  -> dynamic title from db?

Posted on 2014-03-07
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Last Modified: 2014-03-24
Hi  all,

I'm using the below asp.net vb.net pie chart code.  It's all fine except for two things:

1. How do i dynamically assign a field from the sql database to the title of the pie chart?  As you can see I have an X where I'd like a field called 'theDate' to be inserted, how do i do that?

2. the BackImage property is a transparent 1x1px gif...  however, when applied to the pie chart as below i only get a solid white background and not transparent as expected - any ideas why?


            <asp:Chart ID="Chart1" runat="server" Width="676px" Height="410px" 
                       BackImage="../img/spacer_clear.gif" BackImageTransparentColor="White" 
                       DataSourceID="srcWBUsage_ByDate">
                <series>
                    <asp:Series Name="Series1" ChartType="Pie" Legend="Legend1" XValueMember="name" YValueMembers="percent"></asp:Series>  
                </series>
                <chartareas>
                    <asp:ChartArea Name="ChartArea1">
                        <Area3DStyle
                            rotation="10"
                            Perspective="10"
                            Enable3D="true"
                            Inclination="15"
                            IsRightAngleAxes="false"
                            WallWidth="0"
                            IsClustered="false" />
                        <AxisY IsLogarithmic="true" />
                    </asp:ChartArea>
                </chartareas>
                       <Legends>
                           <asp:Legend Name="Legend1">
                           </asp:Legend>
                       </Legends>
                       <Titles>
                           <asp:Title Name="Title1" Text="Chart Date: X">
                           </asp:Title>
                       </Titles>
            </asp:Chart>  

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Thanks,
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Question by:ErinTheCoderGirl
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6 Comments
 

Author Comment

by:ErinTheCoderGirl
ID: 39914324
Any ideas in how I can assign a chart title from the database?
0
 
LVL 44

Expert Comment

by:Rainer Jeschor
ID: 39914368
Hi,
which .Net Framework version?
0
 
LVL 83

Expert Comment

by:CodeCruiser
ID: 39914523
You can write code in code behind to get the field from DB and then use something like

Chart1.Titles(0).Text = Field
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Author Comment

by:ErinTheCoderGirl
ID: 39915175
Hi, I'm using version 4.
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Author Comment

by:ErinTheCoderGirl
ID: 39915555
Codecruiser - I'm not able to just implement that vague answer, do you have a link to an article I can reference and learn from?
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LVL 83

Accepted Solution

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CodeCruiser earned 2000 total points
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