Error property 'itemtemplate' does not have a property named 'commandname'

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I tried adding comandname but it does not work
I am asking again as previous question unanswered

What I have tried:

ASP.NET

<asp:TemplateField  HeaderText='<img width="20px" height="20px" src="../Images/updown.png"/>Id'  ItemStyle-HorizontalAlign="Center"  >
    <itemtemplate commandname="Sort" commandargument="myDBfield"><%#Container.DataItemIndex+1%></itemtemplate>
    
                   
    <asp:BoundField HtmlEncode="false" DataField="LoanType" HeaderText='<img  src="../Images/updown.png"/>LoanType' SortExpression="LoanType" />
    <asp:BoundField DataField="LoanTerm" HeaderText="Term(Years)" SortExpression="LoanTerm" />
    <asp:BoundField DataField="LoanRate" HeaderText="LoanRate" SortExpression="LoanRate" />
    <asp:BoundField DataField="LoanAvailableFrom" HeaderText="Loan Available From" SortExpression="LoanAvailableFrom" />
    <asp:BoundField DataField="LoanAvailableTo" HeaderText="Loan Available To" SortExpression="LoanAvailableTo" />
    <asp:CommandField HeaderText="Edit" SelectText="Edit" ShowSelectButton="True" />
    <asp:CommandField HeaderText="Delete" ShowDeleteButton="True" ShowHeader="True" />

Posted 29-Jul-16 4:08am

Member 12652110

Updated 29-Jul-16 4:43am

Richard Deeming

v2

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Richard Deeming · Answer 1 · 2016-07-29T04:43:00

The error message is pretty self-explanatory - the ItemTemplate for a TemplateField field[^] doesn't contain properties called CommandName or CommandArgument. It's just a placeholder for whatever you want to appear in that column.

If you want the values in the column to be clickable, then you'll need to add a Button or LinkButton to the template:

ASP.NET

<asp:TemplateField  ...>
    <ItemTemplate>
        <asp:Button runat="server"
            CommandName="Sort" 
            CommandArgument="myDBfield"
            Text='<%# Container.DataItemIndex + 1 %>'
        />
    </ItemTemplate>
</asp:TemplateField>

If you want the column to be sortable, then set the SortExpression property on the TemplateField:

ASP.NET

<asp:TemplateField  ... SortExpression="myDBfield">
    <ItemTemplate>
        <%# Container.DataItemIndex + 1 %>
    </ItemTemplate>
</asp:TemplateField>