[varunit]

I have 3 combo boxes and one text box and a button. Each combobox contains an item (custom). When this item is selected, the focus has to bemoved to textbox and when ADD button is clicked, the text typed in textbox has to be added as an item to the combobox from which selections has made. I'm confused with how to identify which combo box has sent the "custom" item adding event and how to add the new item to that combobox. Could anyone help me in doing this?

[macosxnerd101]

Moved to C#. Please don't post help questions in the Advanced Discussion forum.

[Skydiver]

Seems like a simple enough problem. When you get the selected item change event for the comboboxes, you check to see if the selected item is custom. If it is, you set a member variable named lastCustom to the current combobox, and then set the focus on the textbox. Then when the click event is fired on the button, you add the value in the textbox to the lastCustom.

In pseudo code:

class MyForm
{
    ComboBox _lastCustom;
    :
    void ComboBox_SelectionchangeCommitted(object sender, EventArgs e)
    {
        ComboBox thisComboBox = (ComboBox) sender;

        if (thisComboBox.SelectedItem matches "custom")
        {
            _lastCustom = thisComboBox;
            _textBox.Focus();
        }
    }

    void AddButton_Click(object sender, EventArgs e)
    {
        _lastCustom.Items.Add(_textBox.Text);
    }
}

[varunit]

@Skydiver, Thanks for the response. I forgot to mention that I'm using TextChanged event to handle the User Selection. Anyways, I'll try this snippet with my TextChanged event and will post the results. Thanks

[Michael26]

Skydiver is right, when something happens (the item is selected in combo-box) a corresponding event has to occur, so i don't think TextChanged event will work for item selected in combo-box.

Quote

I'm confused with how to identify which combo box has sent the "custom" item adding event and how to add the new item to that combobox

In Skydiver's pseudo code this is

ComboBox thisComboBox = (ComboBox) sender;

you'll see why if you try to debug your code.

[varunit]

Thank you skydiver. I'm able to add items to list without any issues.
Thank you Michael26 for your reply.