CODEWITHSUNDEEP
c#asp.netgridvieweval
Ronaldinho Learn Coding
Ronaldinho Learn Coding

Reputation: 13824

Using Eval() in .ASPX file

I have a grid view that displays all of uploaded files of an employee (data from SQL DB). 

<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" AllowPaging="true" ShowFooter="false" PageSize="5"
CssClass="table" AlternatingRowStyle-BackColor="WhiteSmoke"
HeaderStyle-BackColor="#6C7A95" HeaderStyle-BorderColor="#666666" HeaderStyle-BorderStyle="Solid" HeaderStyle-BorderWidth="2" HeaderStyle-ForeColor="White"
OnPageIndexChanging="OnPaging" EmptyDataText="No Documents">
    <Columns>
        <asp:BoundField DataField="file_name" HeaderText="File Name" />
        <asp:BoundField DataField="upload_date" HeaderText="Date (GMT -7)" />
        <asp:BoundField DataField="file_status" HeaderText="Status" />

        <asp:TemplateField HeaderText="Employee's Note">
            <ItemTemplate>
                 <a data-original-title='<%# Eval("emp_note")%>' href="#" class="demo-cancel-click" rel="tooltip"><i class="icon-book"></i></a>
             </ItemTemplate>
        </asp:TemplateField>

    </Columns>
</asp:GridView>

The interface look like this: enter image description here

The Employee's Note (emp_note) is an optional field (emp_note can be null in database), how can I make the "icon-book" disappear if the emp_note is empty in database?

I tried this but got error:

<a data-original-title='<%# Eval("emp_note")%>' href="#" class="demo-cancel-click" rel="tooltip"><i class="<%= Eval("emp_note") != null ? "icon-book" : ""%>"></i></a>

Upvotes: 2

Views: 1185

Answers (2)

Dmitri E
Dmitri E

Reputation: 253

What about this:

<i class='<%# Eval("emp_note") != null ?  (Eval("emp_note") == "b" ? "icon-book" : "icon-b") : ""%>'></i>

Upvotes: 1

Andrei
Andrei

Reputation: 56688

You have wrong quotes for the class value of the i tag. Also <%# %> should be used there, just as for the a:

<i class='<%# Eval("emp_note") != null ? "icon-book" : ""%>'></i>

Upvotes: 4

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