Suppose I have items in combobox1
1) On button click event ,I want to copy all the items to combobox2 ? What is the coding for this?

You can't just do a cbo1.items = cbo2.items

You will need to do somthing like:

Dim Value as string 'Im not sure if this should be a string 

For each Value in cbo2.Items
   cbo1.items.add(Value)
Next
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim Item As String
        For Each Item In ComboBox1.Items
            With ComboBox2.Items
                .Add(Item)
            End With
        Next
    End Sub

Thx.Hey frnds tell me one thing is it posible to select multiple items from the Combobox.Is there any option??

you cannot select multiple item with combobox. You can use Listbox to select more than one items.

button_click(----------)
comboBox2.Items.add(comboBox1.Items);

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.