ListBox.DataSource clears exisiting items

[Guest]

Hi,

When I bind data source to ListBox.DataSource, it clears (deletes) existing
items in the ListBox. I want to preserve existing items when I set
ListBox.DataSource.

Thanks,
Mahesh

 

[Guest]

Hi,
If you are using dataset as datasource to ListBox then you can think of
merging old dataset and new dataset,then assign new merged dataset as
datasource to listbox.In this way it will preserve existing items also.Find
below a link which shows how to merge datasets.
http://msdn2.microsoft.com/en-us/library/803bh6bc.aspx
Hope this helps

 

[news.microsoft.com]

Hello mahesh,

This is not poosible. You can only do this by two ways:

1. Add data source items manually to list box.
2. Add list box items to data source and then bind