文字改变事件一直在发射？ [英] text changed event keeps firing?

问题描述

我无法停止触发textchanged事件。我有一个控制部分代码的计时器，但触发事件的部分不是。为什么这样的事情会发生，如果可能的话，我怎样才能确保事件只在每个文本发生变化时触发一次而不是经常发生？



提前谢谢





此代码位于计时器控件内，但如何在不使用计时器的情况下更新文本框？ textchanged事件仅在添加新添加的文本时触发，但是由定时器以500ms的间隔检查webbrowser控件添加。

  Dim  allelem  As  HtmlElementCollection = WebBrowser1.Document.All 
 对于 每个 webelem 作为 HtmlElement 在 allelem 
 如果 webelem.GetAttribute（  id）=   div 然后 
  Dim  logtext  As   String  = webelem.InnerText 
  Dim  loghtml  As   String  = webelem.InnerHtml 
 RichTextBox1.Text = logtext 
 RichTextBox2。 Text = loghtml 
 结束 如果 
 下一步 

解决方案

仅回答从未答复的队列中删除 - 由OP解决

< blockquote>通过添加一些控件来捕获与计时器无关的信息来改变逻辑

I am having trouble to stop a textchanged event from firing. I have a timer that controls part of the code but the part that fires the event is not. Why would something like this happen and if possible how can I make sure the event only fires once per text changed and not constantly?.

thank you in advance


this code is within a timer control but how or what can i do to update the textbox without using a timer? the textchanged event only fires when newly added text is added of course but it is added by the timer checking the webbrowser control in intervals of 500ms.

Dim allelem As HtmlElementCollection = WebBrowser1.Document.All
       For Each webelem As HtmlElement In allelem
           If webelem.GetAttribute("id") = "div" Then
               Dim logtext As String = webelem.InnerText
               Dim loghtml As String = webelem.InnerHtml
               RichTextBox1.Text = logtext
               RichTextBox2.Text = loghtml
           End If
       Next

解决方案

Answered only to remove from unanswered queue - solved by OP

changed the logic by adding some controls to capture information not tied to the timer

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