how do I set selectionMode to MultiExtended in .Net4

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Hi everyone,

I use Visual Studio 2010 and .net4.

In .Net4.5 there is a selectionMode for listBoxes as MultiExtended.
I couldnt find a equivalent attribute in .Net4.

Could you please define what can i do for multiple Selection at a time.

please note:
I have tried selection modes Multiple,Extended and Single that are available in .Net4, but unfortunatelly all of them are not available for my project

I can not download .net4.5 since i use visual studio 2010, i could not find any .Net4.5 update for visual studio 2010

Thanks

Posted 12-Nov-14 1:31am

denegabze

Updated 12-Nov-14 1:34am

v2

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BillWoodruff · Accepted Answer · 2014-11-12T01:56:00

Solution 1

If you are speaking of the standard Microsoft ListBox Control for WinForms available since .NET 1.1, then you are mistaken: that Control does expose a 'MultiExtended option for the 'SelectionMode property.

Edit: OP has revealed this is a question about the WPF ListBox.

The WPF ListBox provides a SelectionMode.Extended; it does not provide 'MultiExtended : I believe that the way that WPF Extended Mode functions may be different from the WinForms MultiExtended Mode funtionality, but I do not use WPF, and am not certain of that.

You can compare the WinForms MultiExtended behavior:

1. Select when Control, or Shift key is down, and mouse clicks item
2. Select when mouse is down and dragged over un-selected item

Yourself, and evaluate the difference

Posted 12-Nov-14 1:56am

BillWoodruff

Updated 12-Nov-14 2:37am

v2

Comments

denegabze 12-Nov-14 8:15am

Yes, i am speaking about System.Windows.Controls as seen the code
this.CitiesListBox.SelectionChanged += new System.Windows.Controls.SelectionChangedEventHandler(this.CitiesListBox_SelectionChanged);
written in .g.cs file created by .Net

And that is wpf ListBox create code

ListBox Height="170" HorizontalAlignment="Left" Margin="24,0,0,175" Name="CitiesListBox" VerticalAlignment="Bottom" Width="542" SelectionChanged="CitiesListBox_SelectionChanged" SelectionMode ="Extended"

In SelectionMode i can see just three options as "Single", "Multiple", "Extended".

BillWoodruff 12-Nov-14 8:31am

Now that we know you are using WPF: see my revised post. Always a good idea to tag your question so it's clear what technology you are using.

denegabze 12-Nov-14 8:49am

Thanks for advise billWoodruff.