Hello!

How do i do to update Item (Collection)?

Can't get it to work!

This code put the text into ComboBox but it doesen't save it to Item Collection

Combobox1.Item.Add(TextBox1.Text)

TextBox1.ResetText()

TextBox1.Focus()

well yes it will lose the items because you did not save them to a storage format. you can save them to a file and reload them after. example:

Dim theWriter as new StreamWriter(filename)

for each curItem as string in me.theComboBox.Items

theWriter.WriteLine(curItem)

next

theWriter.Close()

Dim theReader as new StreamReader(filename)

do while theReader.Peek()<> -1

Me.theComboBox.Items.Add(theReader.ReadLine())

loop

theWriter.Close()

what happens? any errors? the code seems ok to me:

Me.theComboBox.Items.Add(Me.theTextBox.Text)

be sure to replace the names of the controls as appropriate

The list will have the item added to it....and you can also go through each item programmatically and see for yourself:

for each currentItem as string in this.theComboBox.Items

 MessageBox.Show(currentItem)

next

What part doesnt work - you'll need to be more specific

Example Code to determine items collection is being added to correctly

Me.ComboBox1.Items.Add("foo1")
MsgBox(ComboBox1.Items.Count)

Me.ComboBox1.Items.Add("foo2")
MsgBox(ComboBox1.Items.Count)

Me.ComboBox1.Items.Add("foo3")
MsgBox(ComboBox1.Items.Count)

Me.ComboBox1.Items.Add("foo4")
MsgBox(ComboBox1.Items.Count)

Dim stotalstring As String = ""
For Each s As String In Me.ComboBox1.Items
stotalstring = stotalstring & s & vbCrLf
Next

MsgBox(stotalstring)

Seems to work just fine

the code should work - looks fine to me

Me.theComboBox.Items.Add(me.theTextbox.Text)

of course replace the variable names (control names) as appropriate.

what happens when u add the items?

Public Class Form1

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

MsgBox(ComboBox1.Items.Item(ComboBox1.Items.Count - 1) & " is part of the collection!")

End Sub

End Class

well yes it will lose the items because you did not save them to a storage format. you can save them to a file and reload them after. example:

Dim theWriter as new StreamWriter(filename)

for each curItem as string in me.theComboBox.Items

theWriter.WriteLine(curItem)

next

theWriter.Close()

Dim theReader as new StreamReader(filename)

do while theReader.Peek()<> -1

Me.theComboBox.Items.Add(theReader.ReadLine())

loop

theWriter.Close()

Thanks for answering, i hope it's gonna work!