Databases
StackOverflow2013
Postsdbo
POHow can i display a navigation property in a gridview control?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow can i display a navigation property in a gridview control?
    primarykey
    data
    text
    <p>I want to display a field value from a navigation property in a grid view control. My entities are Albums and Photos and a Photo entity must be associated with an Album entity.</p> <p>I want to display an albums’s name but it is never shown in the gridview control.</p> <p>The following is my markup:</p> <pre><code>&lt;h4&gt; &lt;asp:DropDownList ID="ddlAlbums" runat="server" Style="padding: 3px; width: 150px;" AutoPostBack="True"&gt; &lt;/asp:DropDownList&gt; &lt;/h4&gt; &lt;br /&gt; &lt;asp:UpdatePanel ID="pnlPhotos" runat="server" &gt; &lt;Triggers&gt; &lt;asp:AsyncPostBackTrigger ControlID="ddlAlbums" /&gt; &lt;/Triggers&gt; &lt;ContentTemplate&gt; &lt;asp:DataList ID="PhotosDataList" runat="server" DataKeyField="PhotoID" DataSourceID="PhotosEntityDataSource" RepeatDirection="Horizontal" CssClass="view" RepeatColumns="5" onitemdatabound="PhotosDataList_ItemDataBound"&gt; &lt;ItemTemplate&gt; &lt;asp:Image ID="img" CssClass="thumbnail" ToolTip='&lt;%#Eval("Title")%&gt;' runat="server" ImageUrl='&lt;%#Eval("Caption","~/Uploads/Pictures/{0}")%&gt;' /&gt; &lt;br /&gt; **&lt;asp:Label ID="lblAlbumName" runat="server" Text='&lt;%#Eval("Album.Name")%&gt;'&gt;&lt;/asp:Label&gt;** &lt;asp:LinkButton ID="lnkEdit" runat="server" CommandName="Select" CommandArgument='&lt;%#Eval("PhotoID")%&gt;' OnClick="lnkEdit_Click"&gt;edit&lt;/asp:LinkButton&gt;&amp;nbsp; &lt;asp:LinkButton ID="lnkDelete" runat="server" CommandArgument='&lt;%#Eval("PhotoID")%&gt;' OnClick="DelPhoto_Click"&gt;delete&lt;/asp:LinkButton&gt; &lt;/ItemTemplate&gt; &lt;/asp:DataList&gt; &lt;/ContentTemplate&gt; &lt;/asp:UpdatePanel&gt; &lt;asp:EntityDataSource ID="PhotosEntityDataSource" runat="server" ContextTypeName="Misagh.DAL.MisaghSchoolEntities" EnableDelete="True" EntitySetName="Photos" Where="it.AlbumID = @AlbumID"&gt; &lt;WhereParameters&gt; &lt;asp:ControlParameter ControlID="ddlAlbums" DefaultValue="0" DbType="Int32" PropertyName="SelectedValue" Name="AlbumID" /&gt; &lt;/WhereParameters&gt; &lt;/asp:EntityDataSource&gt; </code></pre> <p>I would really appriciated any help</p> <p>Thanks</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJordan Arron
    1. USFatemeh M
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow can i display a navigation property in a gridview control?
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
      singulars
      1. POHow can i display a navigation property in a gridview control?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COCould you please show your code for the Photo class?
      singulars
      1. POHow can i display a navigation property in a gridview control?
      1. USAndrei
 

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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload