Repeater control and Eval()

  • Thread starter Thread starter Peter Larsen [CPH]
  • Start date Start date
P

Peter Larsen [CPH]

Hi,

I was doing some repeater control tests last day, and there was one thing i
couldn't figure out.
Please look at the following sample code:

In the cs file:
string[] s = new string[] { "1", "2" };
repeatertest.DataSource = s;
repeatertest.DataBind();

In the aspx file:
<asp:Repeater ID="repeatertest" runat="server">
<ItemTemplate>
<tr>
<td>
<%#Eval(**** What to write here ****) %>
</tr>
</ItemTemplate>
</asp:Repeater>

I want the Repeater to write out the contents from property "s", but i don't
know how to write the Eval() method.

BR
Peter Larsen
 
Hi,

I was doing some repeater control tests last day, and there was one thingi
couldn't figure out.
Please look at the following sample code:

In the cs file:
        string[] s = new string[] { "1", "2" };
        repeatertest.DataSource = s;
        repeatertest.DataBind();

In the aspx file:
        <asp:Repeater ID="repeatertest" runat="server">
            <ItemTemplate>
                <tr>
                    <td>
                        <%#Eval(****  What to write here  ****) %>
                </tr>
            </ItemTemplate>
        </asp:Repeater>

I want the Repeater to write out the contents from property "s", but i don't
know how to write the Eval() method.

BR
Peter Larsen
Click to expand...

I am not quite sure but try this: <%# (string)Container.DataItem %> ,
this should work, at least I have used this way in past but i bound to
may be ArrayList or Table.
 
Hi Alex,

Thank you for your comment - unfortunately it doesn't work with string
array.
It does know that the first item is "1", but it is not delivered in away
that is acceptable for #Eval.

BR
Peter


On Aug 25, 12:57 pm, "Peter Larsen [CPH]"

I am not quite sure but try this: <%# (string)Container.DataItem %> ,
this should work, at least I have used this way in past but i bound to
may be ArrayList or Table.
 
you use eval when you wany to use refection to access properties of the
dataitem. in ytour case the dataitem is a string and has no usefull
properties, so you should not use eval. follow the above suggestion or if you
don't want a cast:

<%# Container.DataItem.ToString() %>


-- bruce (sqlwork.com)
 
Hi Peter,

Since the item in the datasource is not a complex class that has column
properties, you should directly reference it via "Container.DataItem". Here
is a complete example:

=========aspx page============
<form id="form1" runat="server">
<div>

<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<hr />
item: <%# Container.DataItem.ToString() %>
</ItemTemplate>
</asp:Repeater>

</div>
</form>
=====================

==========code behind=============
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
string[] items = new string[] { "aa", "bb", "cc", "dd" };
Repeater1.DataSource = items;
Repeater1.DataBind();
}
}
====================

Hope this helps.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


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--------------------
From: "Peter Larsen [CPH]" <[email protected]>
References: <[email protected]>
Click to expand...
Subject: Re: Repeater control and Eval()
Date: Mon, 25 Aug 2008 12:46:02 +0200
Click to expand...
Hi Alex,

Thank you for your comment - unfortunately it doesn't work with string
array.
It does know that the first item is "1", but it is not delivered in away
that is acceptable for #Eval.

BR
Peter


On Aug 25, 12:57 pm, "Peter Larsen [CPH]"

I am not quite sure but try this: <%# (string)Container.DataItem %> ,
this should work, at least I have used this way in past but i bound to
may be ArrayList or Table.
Click to expand...
 
Hi Bruce,

Thanks for the answer - of course, this is the way to do it :-)

BR
Peter
 
Hi Steven,

Thanks for the code sample - as always copy/pastable ready :-)
I appreciate your effort to make it as easy as possible.

BR
Peter
 
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