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    <p>The use of the <code>GridView_DataBound</code> event handler solves the problem.</p> <p>In your case you will need to add a <code>HiddenField</code> to store the <code>PK_DepartmentId</code> value:</p> <pre><code>&lt;asp:GridView ID="gvExample" runat="server" AutoGenerateColumns="False" OnDataBound="gvExample_DataBound"&gt; &lt;Columns&gt; &lt;asp:TemplateField HeaderText="Department"&gt; &lt;EditItemTemplate&gt; &lt;asp:DropDownList ID="ddlDepartment_Edit" runat="server" DataSourceID="dsDepartment_Edit" DataTextField="DepartmentName" DataValueField="PK_DepartmentId"&gt; &lt;/asp:DropDownList&gt; &lt;asp:HiddenField ID="hfDepartmentId" runat="server" Value='&lt;%# Bind("PK_DepartmentId") %&gt;' /&gt; &lt;asp:SqlDataSource ID="dsDepartment_Edit" runat="server" ConnectionString="&lt;%$ ConnectionStrings:BlackHillsConnect %&gt;" ProviderName="System.Data.SqlClient" SelectCommand="sp_GetDepartmentDropDown" SelectCommandType="StoredProcedure"&gt; &lt;/asp:SqlDataSource&gt; &lt;/EditItemTemplate&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblDepartmentName" runat="server" Text='&lt;%# Eval("DepartmentName") %&gt;'&gt; &lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:CommandField ShowEditButton="True" ButtonType="Button" /&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; protected void gvExample_DataBound(object sender, EventArgs e) { foreach (GridViewRow gvRow in gvExample.Rows) { DropDownList ddlDepartment = gvRow.FindControl("ddlDepartment_Edit") as DropDownList; HiddenField hfDepartmentId = gvRow.FindControl("hfDepartmentId") as HiddenField; if (ddlDepartment != null &amp;&amp; hfDepartmentId != null) { ddlDepartment.SelectedValue = hfDepartmentId.Value; } } } </code></pre>
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    1. POHow to set SelectedValue of DropDownList in GridView EditTemplate
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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.

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