Question

我有一段代码，我可以删除第一个值，但失败并发出通知 InvalidArgument =＆＃39; 0＆＃39;的值对于＆＃39; index＆＃39;无效。参数名称：index

Private Sub ComboBox1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles ComboBox1.KeyDown
     If ComboBox1.Items.Count > 0 Then
         If e.KeyCode = Keys.Delete Then
             ComboBox1.Items.Remove(ComboBox1.SelectedItem)
             'or
             'ComboBox1.Items.RemoveAt(ComboBox1.SelectedIndex)
         End If
     End If
 End Sub

谢谢帮助！

Answer 1

If (e.KeyCode == Keys.Delete) // double equals to compare :-D

如果问题没有解决，请尝试：

ComboBox1.Resources.Remove(ComboBox1.SelectedItem);

Answer 2

此代码肯定会解决您的问题

ComboBox1.Items.RemoveAt(ComboBox1.SelectedIndex)

从组合框中删除项目时出错

2 个答案: