How to show a Messagebox when selecting an item in the combobox

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2

I would like to know how to implement in my combobox one Messagebox when selecting an item from the list?

Example:

Combo list:

  1. Junior
  2. Maria
  3. Joseph

When selecting Maria, a message box appears stating: You selected "Maria", OK button.

c# winforms

  • Jose edit your question and include the code with what you already tried.

1 answer

5

The ComboBox has an event SelectedIndexChanged, just implement it and add a MessageBox to show the desired message.

Something like

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    MessageBox.Show($"Você selecionou o item {(sender as ComboBox).Text}");
}

To add the event to your component. In mode design from your form, select the component, right-click on it and then Properties. In the window of Properties click on the icon of Events (lightning) in the category Behavior, two-click on the event you want to create for the component, in this case the event SelectedIndexChanged

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