error setting ItemTemplate asp:DataGrid

jackiew · April 10th, 2006, 10:21 AM

I am getting this error in Datagrid:

System.Web.UI.WebControls.DataGridColumnCollection must have items of type 'System.Web.UI.WebControls.DataGridColumn'. 'ItemTemplate' is of type 'System.Web.UI.HtmlControls.HtmlGenericControl'.

Code:

<ASP:DataGrid id="dgCart" AutoGenerateColumns="false" Width="750" CellPadding="4" HeaderStyle-VerticalAlign="bottom" DataKeyField="CartID" OnSortCommand="dgCart_Sort" OnEditCommand="dgCart_Edit" OnCancelCommand="dgCart_Cancel" OnUpdateCommand="dgCart_Update" OnDeleteCommand="dgCart_Delete" runat="server">
<HeaderStyle Font-Name="Verdana" Font-Size="8pt" Font-Bold="true" />
<ItemStyle Font-Name="Verdana" Font-Size="8pt" />
<AlternatingItemStyle Font-Name="Verdana" Font-Size="8pt" BackColor="#F1FFC7" />

<Columns>
  <asp:EditCommandColumn EditText="Edit" CancelText="Cancel" UpdateText="Update" />
    <asp:BoundColumn DataField="ItemName" HeaderText="Item" ReadOnly="true" ItemStyle-HorizontalAlign="center" HeaderStyle-HorizontalAlign="center" />                
      <asp:TemplateColumn HeaderText="Size" />
        <ItemTemplate>
          <%# Container.DataItem("ItemSize") %>
        </ItemTemplate>
        <EditItemTemplate>
          <asp:TextBox id="ItemSize" width="10" Text='<%# Container.DataItem("ItemSize") %>' runat="server" />
        </EditItemTemplate>
      </asp:TemplateColumn>
      <asp:TemplateColumn HeaderText="Color" />
        <ItemTemplate>
          <%# Container.DataItem("ItemColor") %>
        </ItemTemplate>
        <EditItemTemplate>
          <asp:TextBox id="ItemColor" width="40" Text='<%# Container.DataItem("ItemColor") %>' runat="server" />
        </EditItemTemplate>
      </asp:TemplateColumn>
      <asp:TemplateColumn HeaderText="Logo Option" />
        <ItemTemplate>
          <%# Container.DataItem("LogoOption") %>
        </ItemTemplate>
        <EditItemTemplate>
          <asp:TextBox id="LogoOption" width="25" Text='<%# Container.DataItem("LogoOption") %>' runat="server" />
        </EditItemTemplate>
      </asp:TemplateColumn>
      <asp:TemplateColumn HeaderText="Qty" />
        <ItemTemplate>
          <%# Container.DataItem("ItemQty") %>
        </ItemTemplate>
        <EditItemTemplate>
          <asp:TextBox id="ItemQty" width="5" Text='<%# Container.DataItem("ItemQty") %>' runat="server" />
        </EditItemTemplate>
      </asp:TemplateColumn>
      <asp:BoundColumn DataField="ItemPrice" ReadOnly="true" ItemStyle-HorizontalAlign="center" HeaderStyle-HorizontalAlign="center" />
</Columns>
</ASP:DataGrid>

Can someone tell me whats wrong and how to fix it?

Thanks
Jackie

Imar · April 10th, 2006, 01:09 PM

Hi there,

You closed your TemplateColumn too early:

<asp:TemplateColumn HeaderText="Size" />

should be

<asp:TemplateColumn HeaderText="Size">

so the <ItemTemplate> is a child of the TemplateColumn.

If you post code here on this forum, can you please add a line break here and there? I am typing this reply in a screen that's about 6 foot wide.... ;)

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004

jackiew · April 10th, 2006, 01:47 PM

Thanks! That did it!

Sorry about the line break, I didn't realize I needed to put those in. I will know better next time.

Imar · April 10th, 2006, 02:59 PM

No problem. You probably just found out yourself what happens when you type really long lines here in this forum .... ;)

Glad it's working.

Imar
---------------------------------------
Imar Spaanjaars
Everyone is unique, except for me.
Author of ASP.NET 2.0 Instant Results and Beginning Dreamweaver MX / MX 2004