StackOverflow2013

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2011-11-07T15:32:25.870
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Change this aspx file <pre><code><asp:GridView ID="DataViewer" runat="server"> <Columns> <TemplateColumn> <ItemTemplate> <div style='width: <%# Eval("OrderCount") %>' /> </ItemTemplate> </TemplateColumn> </Columns> </asp:GridView> </code></pre> to this aspx file <pre><code><asp:GridView ID="DataViewer" runat="server"> <Columns> <ItemTemplate> <div style='width: <%# Eval("OrderCount") %>' /> </ItemTemplate> </Columns> </asp:GridView> </code></pre> Explanation: The error message does in fact tell you what's wrong, although it's cryptic if you don't know what it means! Here's a breakdown: <blockquote> Parser Error Description: An error occurred during the parsing of a resource required to service this request. </blockquote> This means that something went wrong while the ASP.NET engine was examining a source file. The hints are 'request' (as in, a web request was made) and 'during the parsing of a resource'. <blockquote> Please review the following specific parse error details and modify your source file appropriately. </blockquote> The error is in a file parsed by asp.net, not the C# compiler. This means the problem is in the <code>aspx</code>, not a <code>.cs</code> file. <blockquote> Parser Error Message: System.Web.UI.WebControls.DataControlFieldCollection must have items of type 'System.Web.UI.WebControls.DataControlField'. 'TemplateColumn' is of type 'System.Web.UI.HtmlControls.HtmlGenericControl </blockquote> Here, something is expecting to contain things which are <code>DataControlField</code>s, but you've given it a <code>TemplateColumn</code>, which is a <code>HtmlGenericControl</code> (which isn't a <code>DataControlField</code>, so isn't what it wants). So we examine the aspx markup and say, where is there a <code>TemplateControl</code>? And we see that your <code>GridView\Columns</code> collection has a <code>TemplateControl</code>. Whereas (on checking the help) it should be directly containing an <code>ItemTemplate</code>, when you want a templated column. And we're done.
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1. POEntity framework Parser Error
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1. USAakashM
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1. COand how do you recommend to print each driverid and 2 divs: white div=OrderCount , red div=OrderCountWhereNameIsNotNull - i have attached a image and a script i used before
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2. COThat seems to be a completely different issue. Please note that StackOverflow is [not a forum](http://meta.stackexchange.com/questions/92107/is-stackoverflow-a-forum) - if your question has been answered, click the tick to accept this answer, and [ask your next question](http://stackoverflow.com/questions/ask) separately.
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Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.