C#Visual Studio中列表框项目上的mouseclick事件 [英] mouseclick event on listbox item in c# visual studio

问题描述

大家好，

当我单击列表框中列出的项目或将光标放在项目上时，如何在消息框中显示信息?我正在使用c#visual Studio 2008(Windows应用程序)

hi all,

how to display the infomation in messagebox when i click an item, or place cursor on an item, listed in the listbox?? i am using c# visual studio 2008 (windows application)

推荐答案

给出

Give the Listbox.SelectedValueChanged[^] event a try.

Initiate somewhere:

listbox1.SelectedValueChanged += new EventHandler(Listbox1_SelectedValueChanged);

并实现这样的事件处理程序

And implement an event handler like this

Listbox1_SelectedValueChanged(object sender, EventArgs e)
{
    Listbox listbox = (Listbox)sender;

    MessageBox.Show(listbox.SelectedItem.ToString());
}

单击很简单:处理ListBox.Click事件:

Click is easy: Handle the ListBox.Click event:

private void myListBox_Click(object sender, EventArgs e)
    {
    ListBox lb = sender as ListBox;
    if (lb != null)
        {
        MessageBox.Show(lb.SelectedItem);
        }
    }

将光标置于某项上"比较困难-您到底是什么意思?

"place cursor on an item" is harder - what do you mean exactly?

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