How to Get Count of Items in Repeater inside ItemDataBound

Question

I have one Repeater

<asp:Repeater runat="server" ID="rptID" OnItemDataBound="repID_ItemDataBound">
         <ItemTemplate>
         <a href='example.com/somepage.aspx' id="myLink">
                 <%# Eval("MyVal")%> 
         </a>
        </ItemTemplate>
</asp:Repeater>

In Code Behind I need to add one css class for this <a> tag when in repeater is one Item

protected void repID_ItemDataBound(object sender, RepeaterItemEventArgs e)
  {
      if (e.Item.ItemType == ListItemType.Item || 
          e.Item.ItemType == ListItemType.AlternatingItem)
      {
          //how to set this class only then count of items is equal with 1
          ((HtmlGenericControl)e.Item.FindControl("myLink")).Attributes
                                                     .Add("class", "Count1");
      }
  }

You need to set it if the current item is the first item or if the datasource only contains one item? — Troy Carlson, Apr 29 '14 at 19:08

score 7 · Accepted Answer · edited May 23 '17 at 10:26

7

This will give you the count of your datasource items:

if (((IEnumerable)rptID.DataSource).Cast<object>().Count() == 1)
{
    ((HtmlGenericControl)e.Item.FindControl("myLink")).Attributes
                                                 .Add("class", "Count1");
}

Counting the IEnumerable was borrowed from this thread: Calculating Count for IEnumerable (Non Generic)

edited May 23 '17 at 10:26

Community

1
1

answered Apr 29 '14 at 19:10

Troy Carlson

2,965
19
26

Thanks for answer, but rpt.DataSource.Count doesn't exist, "Cannot resolve symbol Count" http://clip2net.com/s/i3t4Wl – Alex Apr 29 '14 at 19:23
maybe I need to use if(rpt.Items.Count==1) ? – Alex Apr 29 '14 at 19:25
I tried, but it gave me the same error "Cannot Resolve symbol 'ToList'", In suggestion I have only this options http://i.imgur.com/UPFVKdW.png – Alex Apr 29 '14 at 19:33
var rpt = Page.FindControl("rptID") as Repeater;// always gives me null :( – Alex Apr 29 '14 at 19:59
Yes it's available, but it is incremented in each itemDataBound, I must to check it at the last iteration to know realy count of Items – Alex Apr 29 '14 at 20:16
Your previous answer seems to solve the problem ((IEnumerable)rptID.DataSource).Cast – Alex Apr 29 '14 at 20:19

How to Get Count of Items in Repeater inside ItemDataBound

1 Answers1