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By Mike Holmes - 3 Years Ago
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Am getting the error 'nChartControl1' does not exist in the current content
I normally add the line protected System.Web.UI.WebControls following by the field type, how can I do this from Nevron?
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By Nevron Support - 3 Years Ago
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Hi Mike,
There are three Nevron chart controls and they reside in the following namespaces:
Nevron.Chart.WinForm
Nevron.Chart.Wfp
Nevron.Chart.ThinWeb
Nevron.Chart.WebForm
most likely you use the NChartControl defined in the Nevron.Chart.WebForm namespace, so you need to import it or reference the chart control type with its fully qualified name - Nevron.Chart.WebForm.NChartControl.
We hope this helps - let us know if you have any questions or meet any problems.
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By Mike Holmes - 3 Years Ago
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Thanks, have add the extra references, but still cant access the chart control.
ASPX page
<table id="Table1" style="width: 745px; vertical-align: top;" summary="Example layout table">
<tr>
<td id="Td1" class="ImageCell" style="width: 420px; vertical-align: top;">
<!-- Chart control placeholder BEGIN -->
<ncwc:NChartControl id="nChartControl1" runat="server" Width="420px" Height="320px">
</ncwc:NChartControl>
<!-- Chart control placeholder END -->
</td>
<td id="exampleVDelimiterCell" class="DelimiterCell" rowspan="2"> </td>
<td id="exampleConfigurationCell" class="ControlsPanel" rowspan="2" style="width: 325px;">
</td>
</tr>
</table>
c# Page cant see the control nChartControl1
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By Nevron Support - 3 Years Ago
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Hi Mike,
Please make sure to include:
<%@ Register TagPrefix="ncwc" Namespace="Nevron.Chart.WebForm" Assembly="Nevron.Chart.WebForm" %>
at the top of the aspx page. Let us know if the problem persists.
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By Mike Holmes - 3 Years Ago
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Yes, already there, see complete ASPX file
<%@ Page language="c#" Codebehind="datareports.aspx.cs" AutoEventWireup="True" Inherits="ciconi_results.datareports" %>
<%@ Register TagPrefix="uc1" TagName="_Header" Src="header.ascx" %>
<%@ Register TagPrefix="uc1" TagName="_Footer" Src="footer.ascx" %>
<%@ Register TagPrefix="ncwc" Namespace="Nevron.Chart.WebForm" Assembly="Nevron.Chart.WebForm" %>
<%@ Register TagPrefix="uc2" TagName="_ChartControl" Src="ChartControl.ascx" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head runat="server">
<title>Ciconi Results</title>
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.1" />
<meta name="CODE_LANGUAGE" content="C#" />
<meta name="vs_defaultClientScript" content="JavaScript" />
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5" />
</head>
<body>
<uc1:_header id=_Header1 runat="server"></uc1:_header>
<div id="main">
<div class="container">
<div class="row">
<div class="twelve columns">
<h2>Data Reports</h2>
<hr />
<form id="Form1" method="post" runat="server">
<div class="content">
<div id="bodytext">
<div class="row top30">
<div class="column grid_8">
<table id="Table1" style="width: 745px; vertical-align: top;" summary="Example layout table">
<tr>
<td id="Td1" class="ImageCell" style="width: 420px; vertical-align: top;">
<!-- Chart control placeholder BEGIN -->
<ncwc:NChartControl id="nChartControl1" runat="server" Width="420px" Height="320px">
</ncwc:NChartControl>
<!-- Chart control placeholder END -->
</td>
<td id="exampleVDelimiterCell" class="DelimiterCell" rowspan="2"> </td>
<td id="exampleConfigurationCell" class="ControlsPanel" rowspan="2" style="width: 325px;">
</td>
</tr>
</table>
</div>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
<uc1:_Footer id=_footer runat="server"></uc1:_Footer>
</body>
</html>
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