Cannot select multiple items from listBox.

Question

2.00/5 (1 vote)

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C#

if (lbxFecilities.Items.Count > 0)
            {
                for (int i = 0; i < lbxFecilities.Items.Count; i++)
                {
                    if (lbxFecilities.Items[i].Selected)
                    {
                        if (facilities == "")
                            facilities = lbxFecilities.Items[i].Text;
                        else
                            facilities += "," + lbxFecilities.Items[i].Text;
                    }
                }
            }

Here lsbFecility is the listBox Controller. My problem is that I cannot access the Items[i].Selected Property. It shows some error like Missing assembly reference. Someone please help me to select multiple items from listBox.

Posted 8-Mar-12 17:33pm

arun.m.mr

Updated 8-Mar-12 17:43pm

Rahul Rajat Singh

v2

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Comments

walterhevedeich 9-Mar-12 0:20am

Please post the exact error message.

arun.m.mr 9-Mar-12 0:21am

Error 2 'object' does not contain a definition for 'Selected' and no extension method 'Selected' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?)

Sergey Alexandrovich Kryukov 9-Mar-12 1:08am

The answer depends on UI library and application type. WPF? Forms? Silverlight? ASP.NET? What? Tag it.
--SA

Member 11116893 12-Nov-14 5:54am

how to select multiple item from listbox and save into sql server database??
in wpf

1 solution

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Aniket Yadav · Accepted Answer · 2012-03-08T18:29:00

Solution 1

Please chk if you have give the following NAMESPACE

1. For Windows Application

C#

using System.Windows.Controls.ListBox

2. For ASP.Net Application

C#

using System.Web.UI.WebControls;

3. For WPF Application

C#

using System.Windows.Documents;

And Instead of "FOR Loop" use the following

C#

private void button1_Click(object sender, System.EventArgs e)
 {
     String strItem;
     foreach(Object selecteditem in listBox1.SelectedItems)
     {
         strItem = selecteditem as String;
         MessageBox.Show(strItem);
     }
 }

Hope this will give you an idea

Posted 8-Mar-12 18:29pm

Aniket Yadav

Comments

arun.m.mr 9-Mar-12 1:02am

Thank you aniketyadav7. Thank you so much.

Sergey Alexandrovich Kryukov 9-Mar-12 1:12am

You literally forced aniketyadav7 to make triple work for you. This is not very nice. You should always specify exact type of ListBox, as there are different types under this name.
--SA

Sergey Alexandrovich Kryukov 9-Mar-12 1:09am

Sorry, this is not exactly so. SelectedItems does not exist in ASP.NET.
Will you please check it up and fix?
--SA