如何在事件处理程序中访问richtextboxcontrol. [英] how to access richtextboxcontrol in eventhandler....

问题描述

我正在使用SharpPcap库捕获数据包..

在事件处理程序device_OnPacketArrival(对象发送方，CaptureEventArgs e)中
我试图在Richtextbox控件中显示值，但是出现了这样的错误:非静态字段，方法或属性" packet_capture.Form1.richTextBox1"需要对象引用.

因此，我该怎么办，给我一些代码来克服此问题..

i am using SharpPcap library to capture packets..

in eventhandler device_OnPacketArrival(object sender, CaptureEventArgs e)
i am trying to display values in richtextbox control but there was error like this:"An object reference is required for the non-static field, method, or property ''packet_capture.Form1.richTextBox1".

so what should i do, give me some code to overcome this problem..

推荐答案

事件处理程序是否是Form1的成员?如果是这样，您可以使用此来引用表单.目前，您似乎正在尝试通过类型访问属性，除非该属性为静态属性，否则该属性将不起作用.

尝试这样的事情:

Is the event handler a member of Form1? If so, you can use this to reference the form. At the moment you appear to be trying to access the property through a Type, which doesn''t work unless the property is static, which it obviously isn''t.

Try something like this:

this.ricTextBox1

如果此处理程序不是Form1的成员，则可能需要使用

If this handler isn''t a member of Form1, you are probably going to need to use the

Application.OpenForms

属性来查找对该表单的引用.

property to find a reference to the form.

在编写任何分组代码之前，您应该考虑学习一些基本的编程技能.该错误非常简单，无论出于何种原因，您都有一个静态方法，这意味着您只能访问静态属性而无需使用实例.出于相同的原因，"this"在静态方法中将不起作用.

You should consider learning some basic programming skills, before you write any packet code. The error is very simple, you have a static method, for whatever reason, and that means you can only access static properties without an instance to work with. ''this'' will not work inside a static method, for the same reason.

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