问题描述
如果textbox1！=每15秒为空，如何设置visible1 = false？
我有windows表格c＃vs2015 form1
有label1和textbox1
i需要设置label1.visible = false;从textbox1开始15秒后有价值
来解释更多
假设我打开form1并在写下michel 15秒后写入textbox1 michel
set label1 = false
可见，如果textbox1没有值，15秒后不能对label1执行可见的错误
那么请该怎么做？
我尝试过：
How to set visible to label1 = false if textbox1 !=null every 15 second ?
I have windows form c# vs2015 form1
have label1 and textbox1
i need to set label1.visible=false ; after 15 second from textbox1 have value
to explain more
suppose i open form1 and write in textbox1 michel after writing michel by 15 second
set visible to label1=false
and if textbox1 not have value not execute visible to false to label1 after 15 second
so that how to do that please ?
What I have tried:
How to set visible to label1 = false if textbox1 !=null every 15 second ?推荐答案
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