如何在另一个子表单的子表单上的文本框上设置值 [英] How to set a value on textbox on a child form from another child form

问题描述

如何在另一个子表单的子表单上设置文本框上的值



我想要做的就是将一个值从form3设置为一个文本框表格2



form1是父母

form2和form3是孩子


$ b $从form2上的按钮调用form3，然后点击form3上的按钮，然后在form2上更改文本框的文本





我已经尝试了两种没有父母和孩子的形式，而且工作正常。我对儿童形式有问题。



我试过的：

how to set a value on textbox on a child form from another child form

all i want to do is to set a value from form3 to a textbox on a form 2

form1 is parent
form2 and form3 are child

i call form3 from a button on form2 and then want to click on a button on form3 and change text of a textbox on form2


i've tried this on two forms that are no parent and child and it works fine buy i have problem with to child form.

What I have tried:

'From form2
Form3.showdialog()

'from form3
form2.textbox1.text="Test"

推荐答案

基本上，你没有，它违背OOP设计的所有原则。

而不是通过父表格：在两种形式之间传递信息，第3部分：儿童与儿童 [ ^ ] - 代码在C＃中，但它非常明显，在线转换器应该帮助你不要做任何事情明白：代码转换器C＃到VB和VB到C＃ - Telerik [ ^ ]

Basically, you don't, it goes against all the principles of OOPs design.
Instead you go via the parent form: Transferring information between two forms, Part 3: Child to Child[^] - the code is in C#, but it's pretty obvious, and online converters should help with anything you don't understand: Code Converter C# to VB and VB to C# – Telerik[^]

你的说法不是很有用......

基本上我会建议您在这些儿童表格上创建自己的活动。事件可以告诉父母有事情要做。您还可以向事件添加结果或值的值。事件本身就是你喜欢的动作......



另一种方法是使用被调用的Form作为对话框。在这里，您可以使用Dialogresult和一个属性传递所需的信息......



这不是完整的解决方案，但它可能会引导您朝着允许的方向前进为您提供更多具体信息......

Your desciption is not very useful ...
Basicly I would suggest that you create your own Events on those 'Child'-Forms. An Event can tell a Parent that there is something to do. You could also add a Result or a Value of something to an Event. The Event itself is raised with the action you like ...

Another way could be to use the called Form as a Dialog. Here you could perhaps pass the required Information with the Dialogresult and a Property ...

This is not the complete Solution but perhaps it guides you in a direction which allows to give you more and specific Information ...

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