在 C# 中以编程方式触发 comboBox SelectedIndexChanged 事件

Question

win 窗体上有一个组合框和一个按钮。如何通过单击按钮触发 comboBox selectedIndexChanged。

Answer 1

您应该重新考虑一下您的代码设计。似乎您想引发事件以间接触发某些操作。为什么不试试这样：

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
     // do the things that should happen only if a real change happend
     // ...
     // then do the special thing you want
     DoTheOtherStuff();
}
private void button1_Clicked(object sender, EventArgs e)
{
    // do the things to happen when the button is clicked
    // ...
    // then do the special thing you want
    DoTheOtherStuff();
}
private void DoTheOtherStuff()
{
    // the special thing you want
}

编辑：如果您的遗留代码像您的评论所暗示的那样笨拙，您仍然可以使用这种笨拙的方式：

private void button1_Clicked(object sender, EventArgs e)
{
    comboBox1_SelectedIndexChanged(comboBox1, EventArgs.Empty);
}

在 C# 中以编程方式触发 comboBox SelectedIndexChanged 事件

Fire a comboBox SelectedIndexChanged event programmatically in C#

c#

events

combobox

selectedindex

selectedindexchanged