Embedding HTML in data controls

zoltac007 · May 24th, 2006, 09:59 AM

How can an If/Then statement be embedded in a data control to provide conditional text? I want display the word "Active" in front of the Cat_Key when the value of Cat_Key is less than five. Can <% ASP cdde %> be embedded within the Fields tags to invoke this condition?

<asp:DetailsView ID="DetailsView1" runat="server" AllowPaging="True" AutoGenerateRows="False"
DataKeyNames="Cat_Pkey" DataSourceID="SqlDataSource1" Height="50px" Width="125px">
<Fields>

<-- what to display text "Active" when [Cat_Key] < 5 here -->

<asp:BoundField DataField="Cat_Pkey" HeaderText="Pkey" InsertVisible="False"
                    ReadOnly="True" SortExpression="Cat_Pkey" />
            </Fields>
        </asp:DetailsView>

Imar · May 24th, 2006, 10:39 AM

Hi there,

There are a few ways to do this. One is change your database query and give it an additional column that either contains the word active or nothing.

An alternative is to create a TemplateField with a label that is bound to a method in the code behind, like this:

Code:

<asp:TemplateField HeaderText="Description" SortExpression="Description">
  <ItemTemplate>
    <asp:Label ID="Label1" runat="server" Text='<%# 
         GetActiveState(Eval("Description")) %>'></asp:Label>
  </ItemTemplate>
</asp:TemplateField>

The GetActiveState method could look like this:

Quote:

quote: public string GetActiveState(object o)
  {
      return "SomeThing";
  }

Instead of returning SomeThing you can look at the object o that is passed in, convert it to the proper type (e.g. an int) and then return a relevant text.

Does this help?

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

zoltac007 · May 24th, 2006, 10:50 AM

Thank you Imar,

I think it helps - I have a long way to go to reasonably understand the mechanics of ASP 2.0 but I have your book instantResults which I will start when I finish the Beginning ASP.NET 2.0.

2.0 is very powerful but the customizing is a little daunting - I am partial to one's and zero's programming, it gives you ultimate control but takes forever and no one, including one's self can later remember how it works. Previewed your book - looks like it will be very helpful and efficient.

Thank you,

Zoltac007

Imar · May 24th, 2006, 12:35 PM

Well, have fun with the Instant Results book.

You know where to go when you have any questions about it.... ;)

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