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Old November 13th, 2009, 04:00 PM
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Default moving items from one listbox to another listbox

I have two listbox control on my C# windows application.
I need to move items from list1 to list2 and list1 is bound to database. (data in list1 is coming from database).

When I am trying to use following condition,

list2.Items.Add(list1.SelectedValue);
list1.Items.Remove(list1.SelectedItem);

It is giving me an error, "Items collection cannot be modified when the DataSource property is set." Can anyone please help me?
 
Old December 1st, 2009, 05:01 AM
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I don't know that how you have bounded ListBox to database.
here is a good way to solve this problem. Imagine that our data is collected into a DataSet object named ds. define a DataTable like this:

Code:
DataTable dt = new DataTable();
dt = ds.Tables["your table name goes here"];

List1.DataSource = dt;
and when you want to delete from list1, you can delete data from dataTable object (dt) and automatically list1 is refreshed. Note that dt should be a global variable in class
 
Old December 3rd, 2009, 07:20 AM
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Hello..

You can even try retrieving the data from the list box into a variable and then add it to another list box
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