How to set up a drop-down list box in VB?

1 year ago
Liam
2 minutes

You can set up a dropdown list box in VB by following these steps:

  1. Drag a ComboBox control on the form, it will serve as a drop-down list box.
  2. The properties of the dropdown list box can be set through the properties window or code, such as its name, size, and position.
  3. Add options to a dropdown list box using code. You can add options using the Add method, with the following syntax:
ComboBox1.Items.Add("选项1")
ComboBox1.Items.Add("选项2")
ComboBox1.Items.Add("选项3")

You can add as many options as needed.

  1. You can use the SelectedIndex property to set the index of the default selected item. The index starts from 0, so if you want to set the first item as the default selected item, you can use the following code:
ComboBox1.SelectedIndex = 0
  1. You can use the SelectedIndexChanged event to respond to the change of options in a dropdown list box. This event will be triggered when the user selects a different option. You can write code in the event handler to perform the corresponding operation.

These are the basic steps for setting up a dropdown list box in VB. Depending on your needs, you can also adjust other attributes such as the display style and editability of the dropdown list box.

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