将鼠标输入和鼠标离开事件设置为多个标签，并在选项卡控件中显示单个事件（Windows窗体） [英] Set mouse enter and mouse leave events to several labels with single event in a tab control (windows forms)

问题描述

我的标签控件中有几个标签，最初它们的字体是常规的，但是当鼠标输入特定标签时，我需要将其中一个标签设置为BOLD。我们可以为每个标签编写Mouse Enter事件和Mouse Leave事件。但是我只需要几行代码，当我的鼠标进入特定标签时，我需要将Label Bold标记为粗体。

我不需要将这些事件写入每个标签。

有人建议吗？



我尝试过的事情：

Hi, I am having several labels in my tab control, initially their font will be in regular, but i need to make one of the label BOLD when mouse entered on a particular label. we can write Mouse Enter event and Mouse Leave event for each and every label. But i need only a few lines of code, in which i need to make the Label Bold when my mouse enters on a particular label.
i dont need to write these events to each and every label.
Can any one suggest?

What I have tried:

private void linkLabel24_MouseEnter(object sender, EventArgs e)
        {
            linkLabel24.Font = new Font(linkLabel24.Font.Name, 10, FontStyle.Bold);
        }

private void linkLabel24_MouseLeave(object sender, EventArgs e)
       {
           linkLabel24.Font = new Font(linkLabel24.Font.Name, 10, FontStyle.Regular);
       }

推荐答案

试试

try

private void Form1_Load(object sender, EventArgs e)
      {
          foreach (TabPage tab in tabControl1.Controls)
          {
              foreach (Label lbl in tab.Controls.OfType<Label>())
              {
                  lbl.MouseEnter += lbl_MouseEnter;
                  lbl.MouseLeave += lbl_MouseLeave;
              }
          }
      }

      void lbl_MouseLeave(object sender, EventArgs e)
      {
          Label lbl = (Label)sender;
          lbl.Font = new Font(lbl.Font.Name, 10, FontStyle.Regular);
      }

      void lbl_MouseEnter(object sender, EventArgs e)
      {
          Label lbl = (Label)sender;
          lbl.Font = new Font(lbl.Font.Name, 10, FontStyle.Bold);
      }

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