CheckedChanged event of the radioButton class

If you set all the radiobuttons to the same group, and you can only select them, then the result is 3, because radiobutton1 executes twice and radiobutton2 executes once.

First of all, it's about the event you use, the checkedchanged event, which will be triggered when the value of the control changes, and when the form is just loaded, when the control is initialized to selected, the event will be activated. When you select another widget, the first selected widget becomes unchecked, and the selected widget becomes unchecked, so they both fire their own checkedchanged events.

I tried it, and it's good with me. The result is 2, not 3

It is estimated that after you selected radiobutton1, when you select radiobutton2 again, radiobutton1 is automatically "homed", so another checkedchanged is performed.

checked changed means that the event is triggered when the selection state of the radio button changes (from the selected state to the unselected state, or from the unselected state to the selected state), which may be the result of mouse clicks, or it may be the result of other buttons in the same group being selected and its state changes.

Click is triggered when the mouse clicks a radio button, regardless of whether the radio button is selected or not, and whether the status changes.

The first one is when you specify his checked=true; can be triggered, click cannot be triggered, click must be triggered by mouse clicking.

Specify the groupname of the radiobutton, which needs to be grouped to work.

Select the control and press F4 to set the groupname inside the property form

Hello, you can only select one widget at a time in a group box in C.

There is a value value, which is used to determine which one to choose.

It's been hanging on this issue for a long time, why don't you use the RadioButtonList control, and then handle these events in SelectedIndexChanged?

I don't know how many radiobuttons you have in the window, if there are more than two, when you click on one of the radiobuttons, the status of the corresponding other radiobuttons will also change, so multiple checkedchanged events will be triggered.

The checked attribute is true, which means that it is the current selection... If the groupname of multiple radiobuttons is the same, the radiobuttons are in the same group. That is, you can only choose a single ...

checkedchanged looks at the name, that is, the event will be triggered when the selection is changed.

Neither radiobutton1 nor radiobutton2 has an autopostback function, which is autopostback="true"

1.Breakpoints check the value of a variable.

2.It seems like only buttons and the like generate postback events.

If nothing is wrong. That's the program bullshit, reinstall it.

It doesn't appear to be a selectedchanged event, but a checkedchanged event or a click event.

You just have to set their event handlers to the same ,,, radiobutton1 to radiobutton1 checkedchange, 2 too, 3 too.

Then I wrote a test **, and you can change it yourself according to your needs.

as radiobutton).text);

The first argument in that event handler is the space where you trigger the event, and you can use it with a cast cast.

Associate 12 radiobuttons with the same selectedchanged event.

The checkedchanged time of each radiobutton can be associated with this function.