HI,
When using load-on-demand feature for a multicolumn combobox, I refered to the tutorial adding new items into the combobox in ItemRequested event handler. Instead of adding combobox item, I had to create a new datatable object and re-assign DataSource and DataBind() (because there is no way to add a multicolumn item). The items in combobox repeated every time Datasource got assigned. According to the document, combobox item will be cleared when DataSource is assigned, is this a problem ? of course, I can solve this problem by reprocess the datatable to include only those items not previously added to the combobox.
When using load-on-demand feature for a multicolumn combobox, I refered to the tutorial adding new items into the combobox in ItemRequested event handler. Instead of adding combobox item, I had to create a new datatable object and re-assign DataSource and DataBind() (because there is no way to add a multicolumn item). The items in combobox repeated every time Datasource got assigned. According to the document, combobox item will be cleared when DataSource is assigned, is this a problem ? of course, I can solve this problem by reprocess the datatable to include only those items not previously added to the combobox.
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Saed
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answered on 20 May 2009, 11:22 PM
Hi Tiger,
Have you tried clearing combo items on SelectedIndexChanged? I think you also need to set population status parameter of requestItems to false prior to passing it to ItemsRequested as demonstrated in Documentation.
Hope this helps.
Regards,
saed
Have you tried clearing combo items on SelectedIndexChanged? I think you also need to set population status parameter of requestItems to false prior to passing it to ItemsRequested as demonstrated in Documentation.
Hope this helps.
Regards,
saed