[Mono-winforms-list] Re: [Mono-devel-list] I can't have the listbox working

[Aleksey Ryabchuk]

Hello Vincent,

I looked at the source code of ListBox control.
SelectedItem property is not implemented. You could
try to call SelectedIndex to get the index of selected
item and then get the actual item from Items
collection by the index.

Regards
Aleksey

--- Arnoux Vincent <varnoux@atmel.fr> wrote:
> OK, I didn't have a lot of success with this
> question, however I will 
> give it a second try because I really can't figure
> out the reason why it 
> is not working.
> Actually, the problem comes from the variable
> listBox.SelectedItem that 
> looks to be null.
> I also did a test with listbox.SelectedItems[0]...
> Does anybody has any idea ?
> 
> Vincent
> 
> Arnoux Vincent wrote:
> 
> > Dear list members,
> > I tried a few things but couldn't make the
> following code displaying 
> > my selected listbox item (i.e. the string
> "Selected item:" is 
> > displayed, but nothing, even a blank line for the
> item itself).
> > This works on .net, but doesn't want to on mono.
> > Did I miss anything obvious ?
> >
> > /#define DEBUG
> > // created on 11/11/2003 at 12:08
> > using System;
> > using System.Collections;
> > using System.Windows.Forms;
> >
> >
> > public class CreatedForm :
> System.Windows.Forms.Form
> > {
> >    private System.Windows.Forms.ListBox listBox;
> >    public CreatedForm()
> >    {
> >        InitializeComponent();
> >        start();
> >    }
> >      void InitializeComponent() {
> >        this.listBox = new
> System.Windows.Forms.ListBox();
> >        this.SuspendLayout();
> >        //
> >        // listBox
> >        //
> >        //this.listBox.Location = new
> System.Drawing.Point(16, 16);
> >        this.listBox.Name = "listBox";
> >        //this.listBox.Size = new
> System.Drawing.Size(576, 199);
> >        this.listBox.TabIndex = 0;
> >        this.listBox.SelectedIndexChanged += new 
> >
>
System.EventHandler(this.ListBoxSelectedIndexChanged);
> >        //
> >        // CreatedForm
> >        //
> >        this.AutoScaleBaseSize = new
> System.Drawing.Size(5, 13);
> >        //this.ClientSize = new
> System.Drawing.Size(632, 446);
> >        this.Controls.Add(this.listBox);
> >        this.Name = "CreatedForm";
> >        this.ResumeLayout(false);
> >    }
> >      public void start()
> >    {
> >        listBox.BeginUpdate();
> >        for (int i = 0; i < 10; i++)
> >        {
> >            listBox.Items.Add("Item " + i);
> >        }
> >        listBox.EndUpdate();
> >    }
> >      public static void Main()
> >    {
> >        CreatedForm f = new CreatedForm();
> >        Application.Run(f);
> >    }
> >      void ListBoxSelectedIndexChanged(object
> sender, System.EventArgs e)
> >    {
> >        Console.WriteLine("Selected item:");
> >       
> Console.WriteLine(listBox.SelectedItem.ToString());
> >    }
> > }
> >
> > /Best regards,
> > Vincent/
> > /
> >
> >
> > _______________________________________________
> > Mono-devel-list mailing list
> > Mono-devel-list@lists.ximian.com
> >
>
http://lists.ximian.com/mailman/listinfo/mono-devel-list
> >
> >
> >
> 


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