ASP.NET C# Eval not reading values out of db

Question

Help please - I have a listview looking up integer values from a db, then passes it to the codebehind to check if the db value is 0 - in which case it will display the appropriate message.

It looks something like this: On the aspx page:

<ItemTemplate>
   <ul>
     <%# List(Eval("p1", "Personal Info Verification")) %>
     <%# List(Eval("p2", "Medical History Part One")) %> 
     <%# List(Eval("p3", "Medical History Part Two")) %>
   </ul>
</ItemTemplate>

and on the cs page:

public string List(string input)
   {
     if (input == "0")
        return "<li>" + input + "</li>";
     return "<li>value not 0</li>";
   }

But it doesn't work - the 'value not 0' is returned even though the db record definitely contains a couple of 0's. Not sure if it has something to do with the db value being an integer and not nvarchar? Any suggestions or something else I could be missing?

Answer 1

You can use Eval also in codebehind on databinding(always true on %# ). I would try to parse it:

private string List(string key)
{
     int input = int.Parse(Eval(key).ToString()); // note that the second argument is the format
         return "<li>" + input + "</li>";
     return "<li>value not 0</li>";
}

aspx

<ItemTemplate>
   <ul>
     <%# List("p1") %>
     <%# List("p2") %> 
     <%# List("p3") %>
   </ul>
</ItemTemplate>