[Solved] How to preselect an item in combobox with checkbox

[iomega 55]

Hi:
 In this sample Radcombox with checkboxes

How can I select the first option in the codebehind, so Its text can appear in the textbox and its correspondent checkbox is checked.

Thanks in advance.

[Princy]

Hi,

Try the following code snippet in the ItemDataBound event of the RadComboBox to achieve the desired scenario.

ASPX:

  <telerik:RadComboBox ID="RadComboBox2" DataSourceID="SqlDataSource1" EmptyMessage="All Types"  AllowCustomText="true" DataTextField="ProductName" DataValueField="ProductID" runat="server" OnItemDataBound="RadComboBox2_ItemDataBound" OnPreRender="RadComboBox2_PreRender">
                <ItemTemplate>
                    <asp:CheckBox runat="server" ID="chk1" onclick="onCheckBoxClick(this)" />
                    <asp:Label runat="server" ID="Label1" AssociatedControlID="chk1">
                        <asp:Image  runat="server" ID="MyImage" ImageUrl='<%#Eval("Image") %>' />
                       <%#Eval("ProductName")%>

                    </asp:Label>

                </ItemTemplate>
            </telerik:RadComboBox>

CS:

protected void RadComboBox2_ItemDataBound(object sender, RadComboBoxItemEventArgs e)
    {
        if (e.Item.Index == 0)
        {
            RadComboBoxItem comboItem = (RadComboBoxItem)e.Item;
            CheckBox chkbx = (CheckBox)comboItem.FindControl("chk1");
            chkbx.Checked = true;
        }
        RadComboBox2.SelectedIndex = 0;

    }

Regards
Princy