我这里有3个按钮。
当我单击按钮1时,它将禁用按钮1,然后启用第二个按钮,然后与达到最后一个按钮相同的程序。但是我认为我的代码有问题。当我单击第一个按钮
时,它不会禁用button1已启用,加载时按钮2和3被禁用。
private void groupBox1_Enter(object sender, EventArgs e)
{
Button btn = sender as Button;
if (btn == button1)
{
button1.Enabled = false;
button2.Enabled = true;
button3.Visible = false;
button3.Enabled = false;
MessageBox.Show("button 1 disabled");
}
else if (btn == button2)
{
button1.Enabled = false;
button2.Enabled = false;
button3.Visible = true;
button3.Visible = true;
MessageBox.Show("button 2 disabled");
}
else if (btn == button3)
{
button1.Enabled = false;
button2.Enabled = false;
button3.Visible = false;
button3.Visible = false;
MessageBox.Show("button 3 disabled");
}
}
您是否正在订阅正确的事件?它说groupbox1_enter。
Button[] buttons = null; // Initialize somewhere with all the buttons.
void OnButtonClick(object sender, EventArgs e)
{
for (int index = 0; index < buttons.Length; index++)
{
if (buttons[index] == sender)
{
buttons[index].Enabled = buttons[index].Visible = false;
}
else
{
buttons[index].Enabled = buttons[index].Visible = true;
}
}
}
对不起,我想念您的帖子。以下顺序
Button[] buttons = null;
void OnButtonClick(object sender, EventArgs e)
{
int buttonIndex = Array.IndexOf(buttons, sender);
for (int index = 0; index < buttons.Length; index++)
{
if (index == buttonIndex + 1)
{
buttons[index].Enabled = buttons[index].Visible = true;
}
else
{
buttons[index].Enabled = buttons[index].Visible = false;
}
}
}
检查每个按钮属性中每个按钮的初始值是什么。
最好在更改按钮之前先设置该按钮的属性。
不要将代码放入GroupBox
的Enter
事件中,此事件将将组为sender
。订阅一个按钮之一的ButtonPressed
事件,并最终使用相同的生成方法订阅其他两个按钮的ButtonPressed
事件(如果您想使用if-else
语句,如您所写)
也许您应该这样尝试:
private void groupBox1_Enter(object sender, EventArgs e)
{
Button btn = sender as Button;
if (btn == button1)
{
button1.Enabled = false;
button2.Enabled = true;
button3.Enabled = false;
MessageBox.Show("button 1 is disabled");
}
else if (btn == button2)
{
button1.Enabled = false;
button2.Enabled = false;
button3.Enabled = true;
MessageBox.Show("button 1 & button 2 are disabled");
}
else if (btn == button3)
{
button1.Enabled = false;
button2.Enabled = false;
button3.Enabled = false;
MessageBox.Show("button 3 disabled");
}
}
这是您认为它必须工作的方式还是我弄错了?