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SelectedItem is Nothing when Text = "" (bug?)

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DropDownList
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Marcus
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Marcus asked on 13 Dec 2011, 10:22 AM

Hi,

When I set the Text property of one of the items to a Null string ("") and it's selected then the SelectedItem property of the DDL gives a Nothing value. If I set the Text property to f.e. 1 space (" ") then I don't have this problem.

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Peter
Telerik team
answered on 15 Dec 2011, 05:07 PM
Hi Marcus,

Thank you for writing.

I cannot reproduce the issue with my test project - please refer to the code snippet below:

Private Sub Form2_Load( sender As System.Object,  e As System.EventArgs) Handles MyBase.Load
    for i =0 to 10
            me.RadDropDownList1.Items.Add("Item "&i)
    Next i
    me.RadDropDownList1.Items(4).Text=""
End Sub
When I select Item(4), the SelectedItem is not Noting.

Please check if I have not followed your description correctly and modify the code in a way to demonstrate the issue. This will allow me to assist you further with a workaround if such is available.

I am looking forward to your reply.

All the best,
Peter
the Telerik team

Q3’11 of RadControls for WinForms is available for download (see what's new). Get it today.

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Marcus
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answered on 19 Dec 2011, 04:55 PM

Please try the code below. In my case it will raise an error:

RadDropDownList1.Items.Add("")
RadDropDownList1.SelectedIndex = 0
 
MessageBox.Show(RadDropDownList1.SelectedItem.Text)

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Peter
Telerik team
answered on 21 Dec 2011, 03:28 PM
Hi Marcus,

I was able to reproduce the described issue.

We will provide fix for it in our next release. Currently, as a workaround you should set DropDownList's Text property to "" . Please refer to code below:

RadDropDownList1.Text = ""
RadDropDownList1.Items.Add("")
RadDropDownList1.SelectedIndex = 0
MessageBox.Show(RadDropDownList1.SelectedItem.Text)

I hope this helps.

Kind regards,
Peter
the Telerik team

Q3’11
of RadControls for WinForms is available for download (see what's new). Get it today.
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Marcus
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