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Custom Template and LoadOnDemand/ShowMoreResults/EnableVirtualScrolling

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ComboBox

This is a migrated thread and some comments may be shown as answers.

Robert Vreeland asked on 06 Sep 2008, 03:35 AM

I'd like to be able to do something like the sample at:

http://demos.telerik.com/aspnet/prometheus/ComboBox/Examples/PopulatingWithData/AutoCompleteSql/DefaultCS.aspx

In order to increase performance and not have all of the items loaded initially.

However I'm using a custom template to display multiple columns and am uncertain how to do it. All of the examples assume one item / column and that you can just use an add method on the combobox to add additional items.

Here's my current code below. Is there a way that i could achieve this?

telerik:RadComboBox ID="radcbxaccountnumber" runat="server" MaxLength="16" Width="160px" DropDownWidth="340" EnableEmbeddedSkins="false" Skin="WebIE7" AllowCustomText="true" MarkFirstMatch="true" Text='<%# DataBinder.Eval(database.duckds, "Tables(0).DefaultView.(0).txtvar1") %>' EnableLoadOnDemand="true" HighlightTemplatedItems="true" ItemRequestTimeout="500" OnItemsRequested="radcbxaccountnumber_ItemsRequested" OnItemDataBound="radcbxaccountnumber_ItemDataBound" ShowMoreResultsBox="true" EnableVirtualScrolling="true">

<tr><td style="width:75px;">Account#</td>

<td style="width:100px;">Product</td>

</tr></table></HeaderTemplate>

</tr></table></ItemTemplate></telerik:RadComboBox>

and

Public

requestdataview As DataView

Protected Sub radcbxaccountnumber_ItemsRequested(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadComboBoxItemsRequestedEventArgs)

requestdataview = database.FillDataViewWithCaching(

"getrelatedducks " + Request.QueryString("flockid") + ",1")

radcbxaccountnumber.DataSourceID =

radcbxaccountnumber.DataSource = requestdataview

radcbxaccountnumber.DataBind()

End Sub

Protected Sub radcbxaccountnumber_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadComboBoxItemEventArgs)

e.Item.Text = (

DirectCast(e.Item.DataItem, DataRowView))("txtvar1").ToString()

e.Item.Value = (

DirectCast(e.Item.DataItem, DataRowView))("txtvar1").ToString()

End Sub

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