Is there a way to specify a property from the combo box setup with check items to be passed to a control parameter property?
<asp:ControlParameter ControlID="cmbProviderSort" DbType="Int32" ConvertEmptyStringToNull="true" DefaultValue="-1" PropertyName="SelectedValue" Name="a" />
PropertyName is set as SelectedValue which will only work with a non checkbox combo box. What is the best approach to be able to send in all checked items into the asp:ControlParameter.
I have to use the DataSource setup in this way and cannot do it in the code behind. Thanks