C#NumericUpDown按钮箭头 [英] C# NumericUpDown Button Arrows

问题描述

您好，我正在尝试创建一个NumericUpDown按钮，但看不到任何有关按下哪个按钮的事件(我的意思是向上或向下).如何查看用户按下了哪个按钮?

Hello I am trying to create a NumericUpDown Button but I can't see any events referring to which button is pressed (Up or Down I mean). How can I check which button the user pressed?

推荐答案

     var oldValue = numericUpDown1.Value;
        private void numericUpDown1_ValueChanged(object sender, EventArgs e)
        {
          var newValue=  numericUpDown1.Value;

          if (oldValue < newValue))
          {
              // this is up button
          }
          else
          {
              //this is down button
          }
        }

这可能会对您有所帮助.我没有写％100正确，例如，您必须将新值转换为int和blabla.但是逻辑就是这样.您必须订阅numericupdown valuechanged事件

this may help you. I didnt write %100 correct for example you have to convert new value to int and blabla. But logic is that. You have to subscribe to numericupdown valuechanged event

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