[Solved] itemtemplate- (server side) radlistboxitems

[Dave]

How do I read the content of my item template on the server side by looping thru my collection of RadListBoxItems?

Suppose I have  a template as follows:

                    <ItemTemplate>
                        <div id="TheValue" runat="server">>
                            Test Id:
                            <%#DataBinder.Eval(Container, "Value")%>
                            <br />
                        </div>
                        <div id="TheText" runat="server">
                            Name:
                            <%#DataBinder.Eval(Container, "Text")%>
                            <br />
                        </div>
                        <div id="dateadded" runat="server">
                            Date Added:
                            <%=DateTime.Now.ToShortDateString()%>
                        </div>
                        <hr style="height: 1px; border-color: Black; border-style: solid; width: 95%" />
                    </ItemTemplate>

So in VB.NET in the code behind I expect to be able to  do something like this:

For Each item As RadListBoxItem In RadListBoxDestination.Items

'Grab variables from ItemTemplate (e.g. dateadded ) and do stuff

Next

Any insight appreciated, thanks!

- David

[Shinu]

Hi Dave,

Try attaching custom attributes to RadListBoxItem in ItemDataBound event as shown below so that you can access the third value from code behind.

ASPX::

    <telerik:RadListBox DataSourceID="SqlDataSource1" ID="RadListBox1" runat="server" AutoPostBack="True" DataTextField="CategoryName"
        DataValueField="Description" OnItemDataBound="RadListBox1_ItemDataBound">
    </telerik:RadListBox>

CS:

    protected void RadListBox1_ItemDataBound(object sender, Telerik.Web.UI.RadListBoxItemEventArgs e)
    {
        e.Item.Attributes["myId"] = ((DataRowView)e.Item.DataItem)["CategoryID"].ToString(); // Extra value
    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        foreach( RadListBoxItem item in RadListBox1.Items )
        {
            Response.Write(item.Attributes["myId"]); // get the third value
        }
    }

-Shinu.

[Genady Sergeev]

Hi Dave,

This can be done the following way:

1) Attach the DateTimeLiteral to a serverside control, e.g. Label
2) When iterating on the Items, use the FindControl method of each item to find the label you have added

Example:

<telerik:radlistbox id="RadListBox1" runat="server">
            <Items>
                <telerik:RadListBoxItem runat="server" Text="RadListBoxItem1" />
                <telerik:RadListBoxItem runat="server" Text="RadListBoxItem2" />
                <telerik:RadListBoxItem runat="server" Text="RadListBoxItem3" />
                <telerik:RadListBoxItem runat="server" Text="RadListBoxItem4" />
                <telerik:RadListBoxItem runat="server" Text="RadListBoxItem5" />
                <telerik:RadListBoxItem runat="server" Text="RadListBoxItem6" />
            </Items>
            <ItemTemplate>
                <p>
                    <asp:Label runat="server" ID="DateTimeLabel"
                        Text='<%# DateTime.Now.ToShortDateString() %>' ></asp:Label>
                </p>
            </ItemTemplate>
        </telerik:radlistbox>

Then you can access the DateTime.Now value the following way:

RadListBox1.DataBind();
        foreach (RadListBoxItem item in RadListBox1.Items)
        {
            Label label = (Label)item.FindControl("DateTimeLabel");
            Response.Write(label.Text);
        }

Regards,
Genady Sergeev
the Telerik team

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