I am binding a List<string> to a Repeater control. Now I want to use the Eval function
to display the contents in ItemTemplate like
<%# Eval("NAME") %>.
But I am not sure what I should use instead of NAME.
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7 Answers
Just use <%# Container.DataItem.ToString() %>
If you are worried about null values you may want to refactor to this (.NET 6+)
<asp:Repeater ID="repeater" runat="server">
<ItemTemplate>
<%# Container.DataItem?.ToString() ?? string.Empty%>
</ItemTemplate>
</asp:Repeater>
Note if you are using less than .NET 6 you cannot use the null-conditional operator Container.DataItem?.ToString()
Comments
Set the ItemType to System.String
<asp:Repeater ItemType="System.String" runat="server">
<ItemTemplate>
<%# Item %>
</ItemTemplate>
</asp:Repeater>
1 Comment
Jonathan van de Veen
Note that the ItemType property is introduced in .NET Framework 4.5.
rptSample.DataSource = from c in lstSample select new { NAME = c };
in the repeater you put
<%# Eval("NAME") %>
1 Comment
Matthew Lock
Some examples use <%# DataBinder.Eval(Container.DataItem, "NAME") %> instead of simply using Eval. What's the difference?
This should work just fine:
<ItemTemplate>
<%=this.GetDataItem().ToString() %>
</ItemTemplate>
Comments
A more complete example based on the LINQ provided by @RobertoBr:
In code behind:
List<string> notes = new List<string>();
notes.Add("Value1")
notes.Add("Value2")
repeaterControl1.DataSource = from c in notes select new {NAME = c};
repeaterControl1.DataBind();
On page:
<asp:Repeater ID="repeaterControl1" runat="server" >
<ItemTemplate>
<li><%# Eval("NAME") %></li>
</ItemTemplate>
</asp:Repeater>
Comments
you have to use the databind syntax here or it will not work.
<%# this.GetDataItem().ToString() %>
Comments
Inside Item Template
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%# Eval("YourEntityName").ToString() ==""? "NA" : Eval("YourEntityName").ToString()%>'></asp:Label>
<ItemTemplate>
or Simply Add inside Item Template
<%# Eval("YourEntityName").ToString() ==""? "NA" : Eval("YourEntityName").ToString()%>