[CLOSED] Clear combobox list items in the code behind

[Marcelo]

I made a search in the fórum, but I didn't find any help.

How can I clear combobox list items in the code behind during ajax request?

I have to clear old items and add new items to the list.
I'm not using store.

designer code

<ext:Button runat="server" ID="MyButton" Text="Test Combo" X="150" Y="180">
                        <DirectEvents>
                            <Click OnEvent="MyButtonClick">
                            </Click>
                        </DirectEvents>
                    </ext:Button>


<ext:ComboBox runat="server" ID="MyCombo" FieldLabel="Ano" X="0" Y="180" AllowBlank="false"
                        Width="70" />

code behind

protected void MyButtonClick(object sender, DirectEventArgs e)
        {
            MyCombo.Items.Clear();//not work
            MyCombo.AddScript(MyCombo.ClientID + ".store.data.clear();");//not work
            MyCombo.Clear();//not work

            for (int i = 0; i < 20; i++)
                MyCombo.AddItem("Pos " + i.ToString(), i.ToString());
        }

[Daniil]

Hi,

MyCombo.RemoveAll() should help.

[Marcelo]

Sorry. But I didn't find removeAll().

[Vladimir]

Hi,

It is store's method, please use

MyCombo.GetStore().RemoveAll();

[Marcelo]

Hi,

Thanks. :)

MyCombo.GetStore().RemoveAll()

solved for me