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POEval versus DataField in ASP:Datagrid
 

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  1. POEval versus DataField in ASP:Datagrid
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    <p>I have this really random problem with is bugging me. It works at the end of the day but the problem took some time to figure out and was wondering why this happens so if anyone shed some light on the subject I would be really grateful. Here is the problem</p> <p>I have the following two columns on my datagrid</p> <pre><code>&lt;asp:boundcolumn datafield="contentsection.Id" headerstyle-cssclass="dgHead" headertext="Section" itemstyle-cssclass="dgItem" /&gt; </code></pre> <p>and </p> <pre><code>&lt;asp:templatecolumn&gt; &lt;itemtemplate&gt;&lt;%#Eval("contentsection.Id") %&gt;&lt;/itemtemplate&gt; &lt;/asp:templatecolumn&gt; </code></pre> <p>The first column gives me the error of:</p> <p><strong>A field or property with the name 'contentsection.Id' was not found on the selected data source</strong></p> <p>but the second on runs fine. Any ideas or theories as to why this is happening ?</p> <p>The way that I call and bind my data is like so:</p> <p>Page Load Code Behind</p> <pre><code>ContentList.DataSource = ContentBlockManager.GetList(); ContentList.DataBind(); </code></pre> <p>The GetList() function it is overloaded and by default passed a 0</p> <pre><code>public static List&lt;ContentBlockMini&gt; GetList(int SectionId) { List&lt;ContentBlockMini&gt; myList = null; SqlParameter[] parameters = { new SqlParameter("@ContentSectionId", SectionId) }; using (DataTableReader DataReader = DataAccess.GetDataTableReader("dbo.contentblock_get", parameters)) { if (DataReader.HasRows) { myList = new List&lt;ContentBlockMini&gt;(); } while (DataReader.Read()) { myList.Add(FillMiniDataRecord(DataReader)); } } return myList; } </code></pre> <p>and my filling of the data record. The ContentSection is another Object Which is a property of the ContentBlock object</p> <pre><code>private static ContentBlockMini FillMiniDataRecord(IDataRecord DataRecord) { ContentBlockMini contentblock = new ContentBlockMini(); contentblock.Id = DataRecord.GetInt32(DataRecord.GetOrdinal("Id")); contentblock.Name = DataRecord.GetString(DataRecord.GetOrdinal("Name")); contentblock.SEOKeywords = DataRecord.IsDBNull(DataRecord.GetOrdinal("SEOKeywords")) ? string.Empty : DataRecord.GetString(DataRecord.GetOrdinal("SEOKeywords")); contentblock.SEODescription = DataRecord.IsDBNull(DataRecord.GetOrdinal("SEODescription")) ? string.Empty : DataRecord.GetString(DataRecord.GetOrdinal("SEODescription")); if (DataRecord.GetInt32(DataRecord.GetOrdinal("ContentSectionId")) &gt; 0) { ContentSection cs = new ContentSection(); cs.Id = DataRecord.GetInt32(DataRecord.GetOrdinal("ContentSectionId")); cs.Name = DataRecord.IsDBNull(DataRecord.GetOrdinal("ContentSectionName")) ? string.Empty : DataRecord.GetString(DataRecord.GetOrdinal("ContentSectionName")); contentblock.contentsection = cs; } return contentblock; } </code></pre> <p>There you go that is pretty much the start to end.</p>
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    1. COCould you paste the surrounding declaration of gridview, where you are setting the datasource? i.e `<asp:GridView DataSource="...">`
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      1. USshahkalpesh
 

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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.

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