Selected Items in a ListBox to an Array

Question

5.00/5 (1 vote)

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Hi All,

Im a NUBIE to VB.Net but am learning quickly. I have a listbox2 that is set to Selectionmode = Extended and need to capture the selected items in the list box to an array for a later action. I can easily get the first selected items text but as I iterate through the code it continues to populate the array with a repeat of the first text.

Any help or advice would be greatly appreciated.

VB

Dim RDFs = ListBox2.SelectedItems.Count

Dim RDFsArry(RDFs) As String
Dim index2 As Integer
index2 = 0
For Each selectedItems In ListBox2.SelectedIndex.ToString
    RDFsArry(index2) = (ListBox2.SelectedItem).ToString
    index2 = index2 + 1

Next

Posted 16-Sep-10 4:43am

BMWBear

Updated 16-Sep-10 4:45am

Kschuler

v2

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Comments

Kschuler 16-Sep-10 10:46am

Edit - Fixed code block so it is only around code portion and set language of block to VB instead of SQL.

5 solutions

Solution 3

Did not work, getting the following error now...

SelectedIndices' is not a member of System.Windows.Controls.ListBox

Posted 16-Sep-10 5:08am

BMWBear

Comments

William Winner 16-Sep-10 11:15am

That's because the standard ListBox that everyone uses comes from System.Windows.Forms.

The ListBox in System.Windows.Controls has a SelectedItems property that should do the same thing.

Oh...and you shouldn't post an answer that isn't answer...you can comment on someone else's answer just as I have done here.

BMWBear 16-Sep-10 11:47am

William, Imports System.Windows.Controls is declared but I'm still getting the error.

William Winner 16-Sep-10 12:22pm

That's why you're getting the error. If you are using the System.Windows.Controls Namespace, then you have to use SelectedItems, not SelectedIndices.

Though I don't know why you would declare System.Windows.Controls instead of System.Windows.Forms.

Solution 4

Use the SelectedItems property instead of SelectedIndex, as follows:

For Each item In ListBox2.SelectedItems
            RDFsArry(index2) = item
Next

Posted 16-Sep-10 5:19am

Marc A. Brown

Updated 16-Sep-10 6:03am

v2

Comments

BMWBear 16-Sep-10 11:54am

Marc, you codes does work but it is entering the following in to the array...
0 "S"
1 "Y"
2 "S"
3 "T"
4 "E"

BMWBear 16-Sep-10 12:03pm

I figured it out, I dropped the .ToString at the end of SelectedItems and I'm now getting the values. Thanks everyone

Marc A. Brown 16-Sep-10 12:03pm

Yeah, sorry about that typo. Caught at the same time you did. Fixed the answer.

Solution 5

C++

I figured it out, I dropped the .ToString at the end of SelectedItems and I'm now getting the values. Thanks everyone

Posted 16-Sep-10 6:03am

BMWBear

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Kschuler · Accepted Answer · 2010-09-16T04:52:00

Solution 1

You are using the For Each incorrectly. It loops through a collection and ListBox2.SelectedIndex is not a collection. Try using ListBox2.SelectedIndices.

Posted 16-Sep-10 4:52am

Kschuler

Simon_Whale · Accepted Answer · 2010-09-16T04:54:00

Solution 2

assuming that the items are string in the code below, but you need to go through the selectedindices of the listbox

VB

For Each item As String In ListBox2.SelectedIndices
  RDFsArray(index2) = item
  index2 = index2 + 1
Next

Posted 16-Sep-10 4:54am

Simon_Whale

Comments

Dalek Dave 16-Sep-10 11:16am

Good Answer

Simon_Whale 16-Sep-10 11:17am

Thank you Mr Dalek Dave