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Apr 24th, 2007, 05:31 PM
#1
Thread Starter
Fanatic Member
[RESOLVED] array to combobox
hey all...
a quick question regarding binding an array to comboboxes.
i have mutilple comboboxes which will contain the hours and minutes
so i've create 2 arrays, one containing the hours and one containing the minutes
Code:
Dim l_hours As String() = {"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23"}
so i want to assign the hours to several comboboxes. I do this by:
Code:
cbo1.DataSource = l_hours
cbo1.SelectedIndex = -1
cbo2.DataSource = l_hours
cbo2.SelectedIndex = -1
however whatever value i select in cbo1 it is set in cbo2 aswell.
eg: i select 10 from the dropdown in cbo1, when this is selected 10 becomes the selected value in cbo2.
can someone explain this to me... there something im not doing right here
Barry
Visual Studio .NET 2008/Visual Studio .NET 2005/Visual Studio .NET 2003
.NET Framework 3.0 2.0 1.1/ASP.Net 3.0 2.0 1.1/Compact Framework 1.0
SQL Server 2005/2000/SQL Server CE 2.0
If you like, rate this post
Compact Framework for Beginners
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Apr 24th, 2007, 06:13 PM
#2
Re: array to combobox
I realy don't know why it does that but i guess the reason is that you bind the same object to the two comboboxes. If you don't want it hapen then you need to have two diferent array objects bind to the controls.
vb Code:
Public Class Form1
Dim l_hours1() As String = {"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23"}
Dim l_hours2(l_hours1.Length - 1) As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.ComboBox1.DataSource = l_hours1
Me.ComboBox1.SelectedIndex = -1
Array.Copy(l_hours1, l_hours2, l_hours1.Length)
Me.ComboBox2.DataSource = l_hours2
Me.ComboBox2.SelectedIndex = -1
End Sub
End Class
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Apr 24th, 2007, 08:21 PM
#3
Re: array to combobox
You will need to 'reset' the binding context or better said, assign a different binding manager to each combobox:
Code:
cbo1.BindingContext = New BindingContext()
cbo1.DataSource = l_hours
cbo2.BindingContext = New BindingContext()
cbo2.DataSource = l_hours
Or you can simply use AddRange.
Code:
cbo1.Items.AddRange(l_hours)
cbo1.SelectedIndex = -1
cbo2.Items.AddRange(l_hours)
cbo2.SelectedIndex = -1
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Apr 25th, 2007, 07:53 AM
#4
Thread Starter
Fanatic Member
Re: array to combobox
the first one works perfectly as im doing this on the compact framework
cheers half
Barry
Visual Studio .NET 2008/Visual Studio .NET 2005/Visual Studio .NET 2003
.NET Framework 3.0 2.0 1.1/ASP.Net 3.0 2.0 1.1/Compact Framework 1.0
SQL Server 2005/2000/SQL Server CE 2.0
If you like, rate this post
Compact Framework for Beginners
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