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Can ComboBox be setted as readonly?


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Old 10-24-2007, 12:39 PM
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Default Can ComboBox be setted as readonly?

I need a readonly ComboBox(user can select items,but can not edit or del the word),is it possible?
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Old 10-24-2007, 12:46 PM
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I was under the impression that the combobox is read-only?
See this post...
ComboBox text input

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Old 10-24-2007, 02:19 PM
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Quote:
Originally Posted by RandomCoder View Post
I was under the impression that the combobox is read-only?
Yes but it is a bit messy as you can type into the ComboBox and doing so resets SelectedIndex.

However (he said with an appropriate flourish!) with my ControlEvents library ControlEvents library and an undocumented Text property of the ComboBox

Code:
Sub Globals
	'Declare the global variables here.	
	CB1index = -1
End Sub

Sub App_Start
	Form1.Show
	CbEvents.New1("ComboBox1")
End Sub

Sub ComboBox1_SelectionChanged(I, v)
	 CB1index = ComboBox1.SelectedIndex
End Sub

Sub CbEvents_TextChanged
 	If CB1Index >= 0 Then ' AND ComboBox1.SelectedIndex = -1  Then
		' the user has typed into a selection and so unset SelectedIndex so reset it
		ComboBox1.SelectedIndex = CB1index
		ComboBox1.Text = ComboBox1.Item(ComboBox1.SelectedIndex)
	Else	
		' the useR is trying to type into the empty combobox - don't let him!
		ComboBox1.Text = ""
	End If
End Sub
Attached Files
File Type: zip DeadComboBox.zip (3.5 KB, 3 views)
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Old 10-24-2007, 04:14 PM
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Everyone should remember that the combobox has a different behaviour on the desktop and on the device.
- on the desktop, you are able to write free text into a combobox so that the selectedIndex returns -1
- on the device, it is not possible to "edit" the combobox

This seems to be a difference between .Net and .Net CF.


specci48
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Old 10-24-2007, 04:15 PM
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It's a good idea, Thanks a lot.
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