c# - 抽绳 onclick 方法 C#

Question

我有一些使用 DrawString 绘制的字符串

        for (int j = 0; j < dt.Rows.Count; j++)
        {
            e.Graphics.DrawString(Convert.ToString(dt.Rows[j]["ID"]), drawFont, drawBrush, new Point(Convert.ToInt32(dt.Rows[j]["XCord"]), Convert.ToInt32(dt.Rows[j]["YCord"])));
        }

有没有办法为每个拉绳创建一个 onclick 事件？当您单击拉绳时，我希望创建一个新表单。谢谢!

Answer 1

处理容器的MouseClick事件并枚举行以找出文本的“矩形”并查看鼠标位置是否在其中:

void panel1_MouseClick(object sender, MouseEventArgs e) {
  if (e.Button == MouseButtons.Left) {
    foreach (DataRow dr in dt.Rows) {
      Point p = new Point(Convert.ToInt32(dr["XCord"]), Convert.ToInt32(dr["YCord"]));
      Size s = TextRenderer.MeasureText(dr["ID"].ToString(), panel1.Font);
      if (new Rectangle(p, s).Contains(e.Location)) {
        MessageBox.Show("Clicked on " + dr["ID"].ToString());
      }
    }
  }
}