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POCan't reach a control from EditItemTemplate in a GridView
 

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  1. POCan't reach a control from EditItemTemplate in a GridView
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    <p>I can't find the controls I want when trying to update my gridview. The controls are textboxes and a dropdownlist from an EditItemTemplate. However, if I try to find a label in ItemTemplate it works just fine. The problem seem to be that it "jumps out" of edit mode before I have a chance to get the controls.</p> <p>Markup for my gridview:</p> <pre><code>&lt;asp:GridView ID="ProductGridView" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="Id" OnRowEditing="ProductGridView_RowEditing" OnRowCancelingEdit="ProductGridView_RowCancelingEdit" OnRowUpdating="ProductGridView_RowUpdating" OnRowDeleting="ProductGridView_RowDeleting" OnRowDataBound="ProductGridView_RowDataBound"&gt; &lt;Columns&gt; &lt;asp:CommandField ShowDeleteButton="True" ShowEditButton="True" CausesValidation="false" /&gt; &lt;asp:TemplateField HeaderText="Name" SortExpression="Name"&gt; &lt;EditItemTemplate&gt; &lt;asp:TextBox ID="txtName" runat="server" Text='&lt;%# Bind("Name") %&gt;'&gt;&lt;/asp:TextBox&gt; &lt;/EditItemTemplate&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblName" runat="server" Text='&lt;%# Eval("Name") %&gt;'&gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText="Quantity" SortExpression="Quantity"&gt; &lt;EditItemTemplate&gt; &lt;asp:TextBox ID="txtQuantity" runat="server" Text='&lt;%# Bind("Quantity") %&gt;'&gt;&lt;/asp:TextBox&gt; &lt;/EditItemTemplate&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblQuantity" runat="server" Text='&lt;%# Eval("Quantity") %&gt;'&gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:TemplateField HeaderText="Family" SortExpression="Family.Name"&gt; &lt;EditItemTemplate&gt; &lt;asp:DropDownList ID="ddlFamily" runat="server" OnInit="ddlFamily_Init"&gt; &lt;/asp:DropDownList&gt; &lt;/EditItemTemplate&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="lblFamily" runat="server" Text='&lt;%# Eval("Family.Name") %&gt;'&gt;&lt;/asp:Label&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; </code></pre> <p>This is the code-behind from my RowUpdating method. How do I reach the controls from the EditItemTemplate? Am I missing something really simple?</p> <pre><code>protected void ProductGridView_RowUpdating(object sender, GridViewUpdateEventArgs e) { // Get the controls GridViewRow row = ProductGridView.Rows[e.RowIndex]; Label lblName = (row.FindControl("lblName") as Label); // Returns this label, from the row being edited, just fine TextBox txtName = (row.FindControl("txtName") as TextBox); // null TextBox txtQuantity = (row.FindControl("txtQuantity") as TextBox); // null DropDownList ddlFamily = (row.FindControl("ddlFamily") as DropDownList); // null // More code to populate product etc. } protected void ProductGridView_RowEditing(object sender, GridViewEditEventArgs e) { ProductGridView.EditIndex = e.NewEditIndex; BindGridView(_productRepo.GetAll()); } </code></pre>
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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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