如何知道哪个单选按钮被选中? [英] how to know which radiobutton is checked?

问题描述

我有这部分代码:(在按钮的点击事件中)

i have this part of code: (in the click event of a button)

           foreach (RadioButton rb in grbFiltro.Controls.OfType<RadioButton>())
       {
           if (((RadioButton)rb).Checked)
           {
               switch (true)
               {
                   case rbt1.Checked:
                       //do something
                       break;
                   case rbt2.Checked:
                      //do something
                       break;
                   case rbt3.Checked:
                        //do something
                      break;
               }
           }
       }

但是在 ---> case rbt1.Checked 中将单选按钮转换为字符串时出错

but there´s a error converting radiobutton to string in ---> case rbt1.Checked

我该如何解决这个问题，或者我还能使用什么?

how do i fix this, or what else can i use?

推荐答案

var rb = grbFiltro.Controls.OfType<RadioButton>()
             .SingleOrDefault(rb => rb.Checked.GetValueOrDefault()) as RadioButton;

if (rb!=null)
    switch (rb.Name)
           {
               case "button1":
                   //do something
                   break;
               case "button2":
                  //do something
                   break;
               case "button3":
                    //do something
                  break;
           }

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