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Help with selecting multiple rows from a listbox and assigning values to a variable using VB.NET

Posted on 2016-09-20
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Last Modified: 2016-09-21
Hi,

How do you select multiple rows from a listbox and assigning values to a variable using VB.NET?  For example if I select
House, Garage, Car from the listbox, would like to select a string variable s = House,Garage,Car.

Thanks,

Victor
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Comment
Question by:vcharles
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7 Comments
 
LVL 53

Expert Comment

by:Ryan Chong
ID: 41807970
try:
Dim items As New List(Of String)
        For Each itm In ListBox1.SelectedItems
            items.Add(itm.ToString())
        Next
        Dim rst As String
        rst = String.Join(",", items.ToArray)
        MessageBox.Show(rst)

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0
 
LVL 64

Accepted Solution

by:
Fernando Soto earned 2000 total points
ID: 41808636
Hi Victor;

The following code snippet should do what you need.
'' This linq query will iterate through the selected items in the 
'' ListBox control and build a comma seperated string of the selected values
'' The variable acc is the string that is being built and item is the next item in the ListBox 
Dim s As String = (From r In ListBox1.SelectedItems
                   Select r).Aggregate(Function(acc As String, item As String) acc & ", " & item)

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0
 

Author Comment

by:vcharles
ID: 41808659
Thank You. I will get back to you.
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Author Comment

by:vcharles
ID: 41809551
Hi Fernando,

Your solution works, is there a way to select multiple rows from the listbox without pressing the ctrl key?

Thanks,

Victor
0
 

Author Closing Comment

by:vcharles
ID: 41809553
Thank You.
0
 

Author Comment

by:vcharles
ID: 41809555
Please disregard question from last post.
0
 
LVL 64

Expert Comment

by:Fernando Soto
ID: 41809581
Not a problem Victor, glad to help.
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