C# 通过单击事件访问同一类中的另一个变量
我有以下问题: 我想通过单击鼠标来访问类中的变量 我的班级:C# 通过单击事件访问同一类中的另一个变量,c#,labels,C#,Labels,我有以下问题: 我想通过单击鼠标来访问类中的变量 我的班级: public class Box { public Label LabelDown = new Label(); public byte SavedID; public Box(EventHandler InsideEvent) { LabelDown.Text = null; LabelDown.Size = new Size(96, 32); L
public class Box
{
public Label LabelDown = new Label();
public byte SavedID;
public Box(EventHandler InsideEvent)
{
LabelDown.Text = null;
LabelDown.Size = new Size(96, 32);
LabelDown.Visible = true;
LabelDown.Click += new EventHandler(InsideEvent);
SavedID = 0;
}
}
现在,我在表单中创建了该类的数组
,使用:
Box[] myBox = new Box[5];
在初始化表单的代码中,我添加了以下内容:
for (byte j = 0; j <= myBox.Length(); j++)
{
mybox = new Box(Box_goInside_Click)
Controls.Add(Box[j].LabelDown);
}
我希望你明白我的问题是什么。。。如果我使用base或其他任何东西,它将访问Object,因为它只看到我的标签,而不看到它在我的类框中的一部分。您几乎没有选择:
- 将每个
的引用放在每个框
的标签
属性内标记
- 处理事件
单击
类中的框
事件,然后调用处理程序,将原始发送者(
)替换为标签
本身框
public Box(EventHandler InsideEvent)
{
LabelDown.Text = null;
LabelDown.Size = new Size(96, 32);
LabelDown.Visible = true;
LabelDown.Click += new EventHandler(InsideEvent);
LabelDown.Tag = this;
SavedID = 0;
}
void Box_goInside_Click(object sender, EventArgs e)
{
Box box = (Box)((Control)sender).Tag;
// Do your stuff
}
public class Box
{
public Label LabelDown = new Label();
public byte SavedID;
public Box(EventHandler InsideEvent)
{
LabelDown.Text = null;
LabelDown.Size = new Size(96, 32);
LabelDown.Visible = true;
LabelDown.Click += OnLabelClick;
SavedID = 0;
_insideEvent = InsideEvent;
}
private EventHandler _insideEvent;
private OnLabelClick(object sender, EventArgs e)
{
if (_insideEvent != null)
_insideEvent(this, e);
}
}
void Box_goInside_Click(object sender, EventArgs e)
{
Box box = (Box)sender;
// Do your stuff
}
第二种解决方案:
public Box(EventHandler InsideEvent)
{
LabelDown.Text = null;
LabelDown.Size = new Size(96, 32);
LabelDown.Visible = true;
LabelDown.Click += new EventHandler(InsideEvent);
LabelDown.Tag = this;
SavedID = 0;
}
void Box_goInside_Click(object sender, EventArgs e)
{
Box box = (Box)((Control)sender).Tag;
// Do your stuff
}
public class Box
{
public Label LabelDown = new Label();
public byte SavedID;
public Box(EventHandler InsideEvent)
{
LabelDown.Text = null;
LabelDown.Size = new Size(96, 32);
LabelDown.Visible = true;
LabelDown.Click += OnLabelClick;
SavedID = 0;
_insideEvent = InsideEvent;
}
private EventHandler _insideEvent;
private OnLabelClick(object sender, EventArgs e)
{
if (_insideEvent != null)
_insideEvent(this, e);
}
}
void Box_goInside_Click(object sender, EventArgs e)
{
Box box = (Box)sender;
// Do your stuff
}
哇,非常感谢!第一个解决方案对我来说完美无瑕:)@user1824237不幸的是,我不能接受我自己的答案!:)英雄联盟