如何使应用程序实时自动刷新 [英] How do I make an application that refreshes automatically an in real time

问题描述

我有一个我在Vb.net创建的程序。

这个程序是PIC微控制器的计时器计算器。



现在，GUI上有轨迹栏控件，文本框，单选按钮和其他控件。

当一个控件被更改时，根据用户的输入，一个显示输出程序的文本框被更新实时。



我使用< xxxxx> Changed事件作为控件，例如 Text Changed， SelectedIndex 更改并已检查根据控件是文本框，组合框还是单选按钮更改了事件。



我会将所有这些事件硬连接起来我将首先确定发件人的一个函数，然后执行相应的代码。



我假设有更好，更有效的方法来做到这一点，怎么能我这样做了吗？



谢谢

I have a program that I created in Vb.net.
This program is a timer calculator for PIC micro-controllers.

Now,there are trackbar controls, text boxes, radio buttons and other controls on the GUI.
When one control is changed, as per the user's input, a text box showing an output program is updated in real time.

I used the <xxxxx>Changed event for the controls, eg TextChanged, SelectedIndexChanged and CheckedChanged events based on whether the control is a textbox, combobox or radiobutton.

I would hardwire all these events to fire into one function where i would first determine the sender, and then execute the appropriate code.

I assume there is a better, more efficient way to do this, How can i do it?

Thank you

推荐答案

据我所知你有多个控件，其值为chan父节点或上一个控件的值发生变化时的ges。



您可以使用对象参数创建一个函数

As i understand you have multiple controls, whose values changes when a parent or previous control's values changes.

You can create a function with an object parameter

sub (ByVal e as Object)

' all your code here.
' combine all the code here written in TextChanged, SelectedIndexChanged and CheckedChanged events

you can use e to identify the source

end sub.

现在从每个TextChanged，SelectedIndexChanged和CheckedChanged事件中调用此函数。

Now call this function from every TextChanged, SelectedIndexChanged and CheckedChanged events.

我可能不会将它们全部连接到同样的处理：只是因为需要时间来理清哪个控件类型产生了事件 - 你不能使用开关，所以你必须说if（trackbar）then ... else if（textbox）then ...等等。相反，我会为每个控件类使用不同的处理程序，然后将相关信息传递给通用更新程序。

I would probably not wire them all to the same handler: simply because it takes time to "sort out" which control type generated the event - you can't use a switch, so you have to say "if (trackbar) then ... else if (textbox) then ..." and so forth.
Instead, I'd use a different handler for each control class, and then pass the relevant info to a "generic" updater.

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