Hello Sir,
We set the values inside ItemDataBound even handler after binding it
We use RadComboBox inside RadWindow as the following:
<
telerik:RadWindow
ID
=
"WinFirms"
runat
=
"server"
Title
=
"Select Firm"
Width
=
"500"
Height
=
"200"
Behaviors
=
"Move"
VisibleStatusbar
=
"false"
VisibleOnPageLoad
=
"false"
Modal
=
"true"
EnableShadow
=
"true"
DestroyOnClose
=
"false"
Skin
=
"Sunset"
>
<
ContentTemplate
>
<
div
style
=
"padding:10px;"
>
<
div
style
=
"float:left; width:10px;"
>
Firm:
</
div
>
<
div
>
<
telerik:RadComboBox
runat
=
"server"
ID
=
"ddlFirm"
Width
=
"100%"
MarkFirstMatch
=
"True"
CausesValidation
=
"false"
HighlightTemplatedItems
=
"true"
>
<
HeaderTemplate
>
<
table
style
=
"width:95%"
cellspacing
=
"0"
cellpadding
=
"0"
class
=
"MultiColumnComboBox"
>
<
tr
>
<
td
style
=
"width: 50px"
>DFSA No</
td
>
<
td
style
=
"width: 100px"
>Firm Name</
td
>
<
td
style
=
"width: 50px"
>Capacity</
td
>
</
tr
>
</
table
>
</
HeaderTemplate
>
<
ItemTemplate
>
<
table
style
=
"width:100%"
cellspacing
=
"0"
cellpadding
=
"0"
class
=
"MultiColumnComboBox"
>
<
tr
>
<
td
style
=
"width: 20%; color:Gray;"
><%#DataBinder.Eval(Container.DataItem, "DfsaNo")%> </
td
>
<
td
style
=
"width: 70%"
><%#DataBinder.Eval(Container.DataItem, "DName")%></
td
>
<
td
style
=
"width: 10%; color:Gray;"
><%#DataBinder.Eval(Container.DataItem, "Capacity")%></
td
>
</
tr
>
</
table
>
</
ItemTemplate
>
</
telerik:RadComboBox
>
</
div
>
</
div
>
<
div
style
=
"text-align:center;"
>
<
asp:RequiredFieldValidator
ID
=
"RequiredFieldValidator1"
runat
=
"server"
ErrorMessage
=
"Firm is required"
Display
=
"Dynamic"
ControlToValidate
=
"ddlFirm"
></
asp:RequiredFieldValidator
>
<
asp:Button
runat
=
"server"
id
=
"WinOK"
OnClientClick
=
"SubmitFirmDialog();return false;"
Text
=
"OK"
UseSubmitBehavior
=
"False"
ValidationGroup
=
"SubmitWindow"
CausesValidation
=
"true"
/>
<
asp:Button
runat
=
"server"
id
=
"WinCancel"
OnClientClick
=
"Hide();return false;"
Text
=
"Cancel"
UseSubmitBehavior
=
"False"
/>
</
div
>
</
ContentTemplate
>
</
telerik:RadWindow
>
We Fill DDL as following
Sub
LoadFirmData()
ddlFirm.DataSource = FirmDetails.GetAfAspRaFirmByVal()
ddlFirm.DataBind()
End
Sub
We set the values inside ItemDataBound even handler after binding it
Protected
Sub
ddlFirm_ItemDataBound(
ByVal
sender
As
Object
,
ByVal
e
As
Telerik.Web.UI.RadComboBoxItemEventArgs)
Handles
ddlFirm.ItemDataBound
e.Item.Text = e.Item.DataItem.DName
e.Item.Value = e.Item.DataItem.PersonID &
"%"
& e.Item.DataItem.Capacity
e.Item.Attributes.Add(
"FirmID"
, e.Item.DataItem.PersonID)
e.Item.Attributes.Add(
"Capacity"
, e.Item.DataItem.Capacity)
e.Item.Attributes.Add(
"DfsaNo"
, e.Item.DataItem.DfsaNo)
End
Sub
First page Load the data loads successfully and displayed inside the ComboBox.
When a callback happens the ComboBox loads all data as empty as the following HTML:
<li class="rcbItem rcbTemplate">
<table cellspacing="0" cellpadding="0" class="MultiColumnComboBox" style="width: 100%;">
<tbody><tr>
<td style="width: 20%; color: Gray;"> </td>
<td style="width: 70%;"></td>
<td style="width: 10%; color: Gray;"></td>
</tr>
</tbody></table>
</li>
At the same time when we assess the list items on client side we get the results of (value + attributes) correctly. But its not displayed in the dropdown.