Setting Selected Item on Load

[Rod]

Hi -

I have a RadListView bound to a datasource.  How can I have the first item automatically selected on page load?

Rod

[sitefinitysteve]

What about if you handle the DataBound event of the control

        if (radListView1.Items.Count > 0)
           radListView1.Items[0].Selected = true;

http://www.telerik.com/help/aspnet-ajax/listview-selecting-items.html

Steve

[Rod]

I tried using the following:

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
  <script type="text/javascript">
    var listView = null;
    function optionSelect() {
      var listview = $find("<%= lvOptions.ClientID %>");
      listview.fireCommand("Select", 0);
    }
  </script>
</telerik:RadCodeBlock>

...along with...

<telerik:RadListView ID="lvOptions" runat="server"
      ItemPlaceholderID="pnlOptionsPlaceholder" DataKeyNames="OptionID"
      DataSourceID="dsOptions">
      <ClientSettings>
        <ClientEvents OnListViewCreated="optionSelect" />
      </ClientSettings>
...

And it threw the page into an endless loop (although it did correctly select the first item in my RadListView each time!).

Any ideas?  Does the "fireCommand("Select", itemIndex)" method have to force a reload of the listview, or can I prevent that?

Thanks,

Rod

[Rod]

Steve -

Tried that; no joy.  Have you been able to make it work?

Rod

[sitefinitysteve]

Unless I'm misreading the docs that should be working, but no I havent been able to get it to work.  It appears that the client-side select causes a postback so setting selecting it on a clientside pageload event will cause it to postback everytime :o

[sitefinitysteve]

* Deleted

[sitefinitysteve]

Ok, this works

    protected void listView_ItemDataBound(object sender, RadListViewItemEventArgs e) {
        RadListViewDataItem item = e.Item as RadListViewDataItem;

        if(item.DisplayIndex == 0)
            item.Selected = true;
    }

    protected void listView_PreRender(object sender, EventArgs e) {
        listView.Rebind();
    }

Must be becasue of some funky lifecycle deal

[Rod]

Steve -

Funky is the word...but it works.  I had to wrap both in "Not IsPostBack" qualifiers to prevent them from firing each time I clicked a new selection:

    Protected Sub lvOptions_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadListViewItemEventArgs) Handles lvOptions.ItemDataBound

        If Not IsPostBack Then
            Dim itmRow As RadListViewDataItem = e.Item
            If itmRow.DisplayIndex = 0 Then
                itmRow.Selected = True
            End If
        End If

    End Sub


    Protected Sub lvOptions_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles lvOptions.PreRender

        If Not IsPostBack Then
            lvOptions.Rebind()
        End If

    End Sub

I wouldn't have thought of that - thanks for your help.

Rod

[sitefinitysteve]

No problem, would you mind clicking Mark as Answer? :)

[hart]

7 years later and this answer still works!!

Happy New Year!