[Solved] foreach statement to search listbox items

[Faheem Nadeem]

Hi,

I am encountering a problem with searching radlistbox items. MyCode:

private void searchListBox(object sender, EventArgs e)
        {
            int count = 0;
            foreach (RadListBoxItem item in this.lbLiveClients)
            {
                if(item.DescriptionText == this.txtFindLiveClient.Text)
                {
                    this.lbLiveClients.SelectedIndex = count;
                    break;
                }
                count++;
            }
        }

gives an error:

foreach statement cannot operate on variables of type 'Telerik.WinControls.UI.RadListBox' because 'Telerik.WinControls.UI.RadListBox' does not contain a public definition for 'GetEnumerator'.

Any Solution to this:

I have items that have both text and description text. I wanted to search description text for some reason. then i decided on simple for loop.

            for (int i = 0; i < this.lbLiveClients.Items.Count; i++)
            {
                this.lbLiveClients.Items[i].
            }

but no description text property there for items there, only the text property.

Any Solution to any of this.??
Thanks in advance

[Deyan]

Hi Faheem,

Thanks for writing and for your code snippets.

1. You cannot use the RadListBox control as a enumerated object in a foreach loop since it does not implement the IEnumerable interface. If you wish to enumerate all items in a RadListBox control with a foreach loop, you should change your code the following way:

private void searchListBox(object sender, EventArgs e)
        {
            int count = 0;
            foreach (RadListBoxItem item in this.lbLiveClients.Items)
            {
                if(item.DescriptionText == this.txtFindLiveClient.Text)
                {
                    this.lbLiveClients.SelectedIndex = count;
                    break;
                }
                count++;
            }
        }

2. The RadListBoxItem class has a DescriptionText property which you can use to get or set the text which appears as a description for a RadListBoxItem object. You can access this property the following way (by using a foreach loop):

foreach (RadListBoxItem item in this.radListBox1.Items)
{
    string descriptionText = item.DescriptionText;
}

Or if you are using a for loop:

for (int i = 0; i < this.lbLiveClients.Items.Count; i++)
{
    string descriptionText = (this.lbLiveClients.Items[i] as RadListBoxItem).DescriptionText;
}

I hope this help. Do not hesitate to write back if you need further assistance.
 

Regards,
Deyan
the Telerik team

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[Faheem Nadeem]

Thankyou guys for your quick support i am really thankfull.

Thanks for the code snippets.