ComboBox问题

Question

我对C＃Visual Studio中的comboBox有一个非常奇怪的问题。

我有这段代码

private void cmbType_SelectedIndexChanged(object sender, EventArgs e)
    {
        if(cmbType.Text == "tiger")
        {
            chk1.IsChecked = true;
        }
    }

如果我选择老虎没有任何反应，但是当我选择下面的那个时，它是＆＃34;熊＆＃34; ..它会检查方框

Answer 1

试试这个：

private void cmbType_SelectedIndexChanged(object sender, EventArgs e)
{
    if((string) cmbType.SelectedItem == "tiger")
    {
        chk1.IsChecked = true;
    }
}

Answer 2

您应该根据索引检查组合框项目，因为所选索引后的文本更改

private void cmbType_SelectedIndexChanged(object sender, EventArgs e)
{
    if(cmbType.SelectedText.ToString() == "tiger")
    {
        chk1.IsChecked = true;
    }
}

Answer 3

private void cmbType_SelectedIndexChanged(object sender, EventArgs e)
{
    if(cmbType.SelectedValue.ToString() == "tiger")
    {
        chk1.Checked = true;
    }
}

Answer 4

你可以这样做

private void ComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    var comboBoxItem = e.AddedItems[0] as ComboBoxItem;
    if (comboBoxItem == null) return;
    var content = comboBoxItem.Content as string;
    if (content != null && content.Equals("tiger"))
    {
        cbAnimal.IsChecked = true;
    }
}

此致