How can i "remove" the details of combobox?

Question

1.00/5 (1 vote)

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Hello everyone!

How can i "remove" the details of comboBox?
***I'm getting the details of my database into the comboBox

I tried this code :

VB

comoboBox1.text = "" 
comoboBox1.text = 0

My comboBox contains, for exemple this string = "QWE"
When i tried this code down here, the rsult is the same = "QWE"

VB

 if comoboBox1.text <> "" then '//for string
    comoboBox1.text = "" '/// result: QWE
            or
    comoboBox1.text = 0 '/// result: QWE
end if
                                     OR
 if comoboBox1.text <> 0 then '//for string
    comoboBox1.text = 0 '/// result: QWE
            or
    comoboBox1.text = "" '/// result: QWE
end if
</pre>

In visual studio, in the menu I have "Build" and I've done, clean and Build... but nothing.

If you help me,I will appreciate.

With best regards,
Nillo123.

Posted 24-Jun-13 23:37pm

Nillo123

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3 solutions

Solution 2

You can try :

C#

comboBox1.Items.Clear();

Posted 25-Jun-13 0:15am

phil.o

Comments

Nillo123 25-Jun-13 6:37am

When this reached the comboBox1.items.clear --> this error appear, msg of exception:

An unhandled exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll
Additional information: Conversion from string "Data Source=..." to type 'Long' is not valid.

but thanks anyway :) ;)

Solution 3

VB

If Len(cbx_USER_ass.Text) <> 0 Then
            cbx_USER_ass.Text = Nothing
            cbx_USER_ass.Enabled = False
End If

Posted 26-Jun-13 1:13am

Nillo123

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Maciej Los · Accepted Answer · 2013-06-25T00:14:00

Solution 1

Check the SelectedIndex[^] property and set it to -1 ;)

Posted 25-Jun-13 0:14am

Maciej Los

Comments

Nillo123 26-Jun-13 7:11am

If Len(cbx_USER_ass.Text) <> 0 Then
cbx_USER_ass.Text = Nothing
cbx_USER_ass.Enabled = False
End If